Sunday, December 31, 2017

Which is better: Vertical or Dipole? (#106). Post #1358.


If you can't views this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=pRTo011Qttbc.

Another excellent antenna tutorial from David Casler (KE0OG).  This time, Dave tackles the controversial issue of which is better:  Vertical or Dipole Antennas?  Although Dave prefers Dipole antennas, his discussion is objective and straightforward as he compares the pros and cons of each antenna.  In many cases, your antenna installation will depend on the space available, with verticals preferred for small urban lots.  If you have a larger yard, you may want to consider a halfwave dipole. Both antennas will perform well if you pay attention to details.  For those who wish to experiment, try a vertical dipole for the amateur radio bands between 20 and 10 meters.  I've used a few vertical dipoles with good results.  Dave's explanations are clear and uncomplicated.  Dave recommends using Antenna Modeling Software such as EZNEC + to design your vertical or dipole antennas.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
http://amateurradionewsinformation.com (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (http://paper.li/f-1482109921).
Hawaii News Digest (https://prgnewshawaii.wordpress.com).

Be sure to check the blog sidebars for more antenna and propagation articles.

Thanks for joining us today.  May peace and prosperity be yours during the coming year.

Aloha es 73 de Russ (KH6JRM).

Saturday, December 30, 2017

Beginner Ham Radio #6 - Grounding. Post #1357.


If you can't views this video, please insert this title URL into you browser search box: https://www.youtube.com/watch/v=M8zeei63hek.

One of the key components of any amateur radio antenna system is having a decent ground system for your equipment and antenna.  In this video from Joe Lalumia, we see an excellent example of establishing a workable and safe grounding system for your ham radio station.  Although I may have missed some of Joe's guidelines, it may be worth noting that all ground rods should be tied together, including your AC service, as per NEC requirements.  Overall, this is a well thought out approach to grounding.  Don't put you or your station's safety at risk.  Take your time and install a proper grounding system.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
http://amateurradionewsinformation.com (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).
Hawaii News Digest (https://prgnewshawaii.wordpress.com).

Be sure to check the blog sidebars for more antenna and propagation articles.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Friday, December 29, 2017

Building a Multi-Band Dipole. Post #1356.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=cQfj9879K_c.

A simple HF dipole antenna is an ideal way to get on the air, even when you have a limited space such as a backyard.  In this video from KK4DIV, we see a basic, effective dipole antenna that covers the 40, 20, 17, and 10 meter amateur radio bands.  Most of the antenna materials can be found at your nearest hardware store, building supply outlet, or electrical contractor's store.  You can gain full coverage from 80 meters to 10 meters if you use a balanced feed line (ladder line, television twin lead, or homemade 600 ohm balanced line) in conjunction with a 1:1/1:4 current balun and an antenna "tuner."  If you don't have an appropriate balun or antenna "tuner", then this basic, easy to build dipole described in this video will still serve you well.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
http://amateurradionewsinformation.com (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).
Hawaii News Digest (https://prgnewshawaii.wordpress.com).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Thursday, December 28, 2017

Toyota Tacoma Ham Radio Mobile Installation (HF/VHF/UHF). Post #1355.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=c5u2UZvHRCk.

Here's a well-thought-out mobile installation from K5ACL.  The vehicle is a Toyota Tacoma pickup truck.  The rig is a Kenwood TS-590SG using a MB-430M2 mount. The antenna is a Wolf River Coil Silver Bullet.  Mount is a REP Design Toyota Trac-1 using 18-feet/5.48 meters of RG-8X coax.. Notice the custom made plywood shelf with anchor points.  This installation appears to be designed for stationary use.  There a lots of good ideas in this video.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
http://amateurradionewsinformation.com (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).
Hawaii News Digest (https://prgnewshawaii.wordpress.com).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this post are those of the reporters and correspondents unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Wednesday, December 27, 2017

Working AO-91--a video tutorial from VK3YE. Post #1354.


Working AO-91--a video tutorial from VK3YE
(http://www.southgatearc.org/news/2017/december/working-ao-91.htm#.WkPDQWinHIU).

Accessed on 27 December 2017, 1745 UTC, Post #1354.

Comment:

Peter Parker (VK3YE) has produced a video tutorial on how to use the new AO-91 Amateur Radio Satellite.  According to Peter, AO-91 is easy to use, requiring only an antenna and two handhelds, one for 2m and the other for 70 cm.

This looks like a simple way to use this new satellite.  Just log in to this URL to see the video:

https://youtu.be/astteV2umOg

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
http://amateurradionewsinformation.com (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Tuesday, December 26, 2017

Ham Radio - Quick and easy field antenna. Post #1353.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=yH0zKNNGa0s.

This is one of the better video tutorials on how to design, build, and use a portable vertical antenna for field day or emergency use.  Kevin (KB9RLW) covers basic vertical antenna theory and construction practices for this easy to make vertical antenna. As designed, the antenna will cover 20 through 15 meters.  You may want to make this antenna for emergency use at your shack or for your vehicle "Go-Kit".  A "tuner" is recommended for 10 meters and 30 meters.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio news (a weekly podcast which is updated each Friday).
http://amateurradionewsinformation.com (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Aloha es 73 de Russ (KH6JRM).

Sunday, December 24, 2017

Christmas Greetings from KH6JRM on Hawaii Island.

The Christmas Holiday is being celebrated all over the world by Christian communities ranging from Northern Iraq to the United States of America.  Although most of the holiday festivities will be celebrated by Orthodox Christian communities a bit later (January, 2018), The feeling of goodwill is a welcome break from the  usual saber rattling and political posturing which have dominated the old year of 2017.

On Hawaii Island, residents will get a bit of a white Christmas, thanks to almost a foot and a half/0.457 meters of snow on the upper slopes of Mauna Kea and Mauna Loa.  Check out the webcams at both sites to see how normally tropical Hawaii Island reacts to this dusting of snow.

Listed below are three seasonal observations from three radio amateurs as they contemplate the holiday season:

A Special Season's Greeting from Stan Gibilisco (W1GV)--https://www.youtube.com/watch?v=oBFdcgIBm7E&feature=em-subs_digest.  If that URL doesn't work, please enter the Title of the post into your browser search box.

The Night Before Christmas KH6 Style! from Kelly (KH6KM)--www.eham.net.net/articles/40549.

The Gift by Larry Makoski (W2LJ)--https://w2lJ.blogspot.com.  If that URL doesn't work, please enter the title and author into your browser search box.

From all of my family to yours, Have a Merry Christmas and a prosperous, safe New Year!

For the latest Amateur Radio news and information, please check these websites:

http://www.HawaiiARRL.info.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
https://oahuarrlnews.wordpress.com.
http://amateurradionewsinformation.com (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Saturday, December 23, 2017

Solo antenna mast erecting - Ham Radio know how. Post #1351.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=T10k1NIJO2A.

Often the most difficult and somewhat dangerous tasks of erecting a HF vertical antenna is placing the mast correctly, securing the guy lines, and maintaining stability of the mast until you're ready to test your new antenna.

In this video by "ColdestMoon", we see an efficient, quick, and safe method of erecting a vertical antenna mast using a telescoping fiberglass pole, a few lawn anchors, and three strategically placed guy lines.  Don't be afraid to ask for help if your project needs an extra hand.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
http://amateurradionewsinformation.com (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).
Hawaii News Digest (https://prgnewshawaii.wordpress.com).

Be sure to check the blog sidebars for more antenna and propagation articles.

Views expressed in this blog are those of the reporters and correspondents unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ l(KH6JRM).

Friday, December 22, 2017

Good Ground on Small Lot. Post #1350.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=5RCvUpB7woU&t=50s.

One of the major problems with vertical HF antennas is the establishment of a good ground radial or counterpoise system.  According to conventional wisdom, the ground radial system supplies "the missing half" of a quarter wave vertical antenna.

In this video, Stan Gibilisco (W1GV) provides a working substitute for ground radials in a small urban lot.  The key is laying down as many 10-ft/3.048 meters ground radials you can and using the tallest vertical support (i.e. mast) available.

While this solution is not as efficient as a full ground radial system using 1/4 wavelength wire, it will make your HF vertical antenna perform better than no radials at all.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast that is updated each Friday).
http://amateurradionewsinformation.com (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).
Hawaii News Digest (https://prgnewshawaii.wordpress.com).

Opinions expressed in this blog are those of the reporters and correspondents unless otherwise stated.

Be sure to check the blog sidebars for more antenna and propagation articles.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Thursday, December 21, 2017

25+ unique dipole antenna ideas on Pinterest. Post #1349.


25+ unique dipole antenna ideas on Pinterest

https://www.pinterest.com/explore/dipole-antenna/?Ip=true

Please enter post title or title URL into your browser search box to read the full article.

Comment:

If you're searching for new antenna ideas, then this Pinterest article is for you.  Click on each picture to get a basic idea of how each antenna is designed and built.

Among the antennas shown are:

Slinky Dipole
Fan Dipole
Broad Band Butterfly Terminated Dipole
A Slim Jim calculator from M0UKD
Inverted V Dipole
A Spiral Dipole
Vertical Dipole
Slopping Dipole
End-fed Dipole

This site should give you some new antenna ideas.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
http://amateurradionewsinformation.com (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).
Hawaii News Digest (https://prgnewshawaii.wordpress.com).

Opinions expressed in this blog are those of the reporters and correspondents unless otherwise stated.

Be sure to check the blog sidebars for more antenna and propagation articles.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).



Wednesday, December 20, 2017

Fast Deploy All-Band Portable Ham Radio Vertical Antenna - DX Commander. Post #1348.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=0eqrmAMYV20.

How fast can you erect an all-band HF vertical antenna?  In this video, we see how a little pre-planning can reduce build and erection time to less than half an hour.  According to the video's author, this antenna "covers all bands on HF without a tuner with pure quarter wave elements (5/8th on 15 meters)."  Total time from beginning to actual on-air operation was about 25 minutes.  Interesting video.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
http://amateurradionewsinformationl.com (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).
Hawaii News Digest (https://prgnewshawaii.wordpress.com).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).


Tuesday, December 19, 2017

#268: How to operate a ZM-2 Z-Match Antenna Tuner kit by Emtech. Post #1347.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=XRO4TiashIs.

An exceptionally clear and simple demonstration on how to operate the popular AM-2 Z-Match Antenna Tuner kit by Emtech.  Alan (W2AEW) takes us step-by-step through the operating parameters of this small, highly flexible antenna tuner.

Alan says he's been using this Emtech kit for almost a decade without major problems.  The Emtech antenna tuner "does a nice job indicating when a match is achieved, especially when a SWR meter isn't available."

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday._
http://amateurradionewsinformation.com (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).
Hawaii News Digest (https://prgnewshawaii.wordpress.com).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Monday, December 18, 2017

Ham Radio Basics--How to Install a Coax Connector, PL259 on RG213--The R...


If you can't view this video, please insert this Title URL into your browser search box: https://www.youtube.com/watch?v=N_2cXoJS2BO.  This is post #1346 in a continuing series on Simple Ham Radio Antennas.

Installing PL259 coax connectors on your antenna feedline is an often a necessary and tedious task, especially when you use thicker coax such as RG-8 and RG-213.  In this video from Jim (W6 LG), we learn an easy way to install those pesky PL259 connectors in 3 minutes or less.  If you have the proper tools, the job goes much faster and far neater than just stripping cable, rolling back the braid, and dropping hot solder on the connection.  Jim's method is simple, effective, and easy to learn. 

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
http://amateurradionewsinformation.com (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).
Hawaii News Digest (https://prgnewshawaii.wordpress.com).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Sunday, December 17, 2017

Tuning the 40/80 Meter Inverted V Dipole Antenna. Post #1345.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=IKuLDnwuy8M.

A coiled loaded 40/80 meter Inverted V Antenna is ideal for a small urban backyard.  If you use a PVC pipe mast or a telescoping fiberglass support, you can raise and lower this antenna quickly.

Other than designing, making, and erecting the inverted v, the only other issue with this simple, easily made antenna is tuning the antenna--something that must be done to reduce SWR and RFI in your shack.

In this helpful video from Dave Tadlock (KG0ZZ), we learn how to tune this coil-loaded inverted v in a few easy steps.  Why not make an inverted v antenna as a back up for your current antenna?  Inverted Vs also make excellent portable and emergency antennas.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday.)
http://amateurradionewsinformation (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Saturday, December 16, 2017

Ham Radio Antennas - Magnetic Loop experiments, observations, and results. Post #1344.


If you can't view this video, please insert this title URL into your browser's search box: https://www.youtube.com/watch?v=jEO9JSRXeZI.

If you're looking for an experimental antenna you can use in deed-restricted properties (HOAs/CC&Rs) or for portable and emergency operations, the magnetic loop antennas described by Kevin Loughin (KB9RLW) may be what you need.

Kevin does an excellent job of explaining the theory, design, construction, and  use of these small antennas.  He also discusses the limitations and safety concerns related to magnetic loop antennas.

For the latest Amateur Radio news and information, please visit these websites:

http;//www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
http://amateurradionewsinformation.com (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).
Hawaii News Digest (https://prgnewshawaii.wordpress.com).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Friday, December 15, 2017

New 160 Meter Antenna. Post #1343.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=51wEd-Wg1IQ.

If you have some space and a good amount of tall trees on your property, you may want to build this antenna for your 160 meter operations.  The keys to this project are a decent radial/counterpoise system and an efficient way to launch the long wire element for this antenna. 

In this video, Dave ("AllAmericanFiveRadio") uses a pneumatic weight launcher to put the antenna into a tall tree--surely beats a bow and arrow and the slingshot I've used in the past.

The video is loaded with many great ideas for designing, building, and using a practical and simple 160 meter antenna.  Be sure to have a good radial ground or counterpoise system to maximize the performance of this antenna.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
http://amateurradionewsinformation.com (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).
Hawaii News Digest (https://prgnewshawaii.wordpress.com).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Thursday, December 14, 2017

End Fed Half Wave Antenna -11 Bands One Antenna! Post#1342.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=Ree8NtpEEWA.

Here's another interesting variant of the familiar end-fed halfwave antenna.  In this video, Steve Ellington shows how he added 160, 60, and 6 meters to his 130-foot/39.63 meter random wire, which already covered the 80, 40, 20, 15, and 10 meter bands.  The key is the addition of a 12-volt relay which bypass regular tuning, allowing for 160, 60, and 6 meter coverage.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.come.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
http://amateurradionewsinformation.com (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).
Hawaii News Digest (https://prgnewshawaii.wordpress.com)

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Wednesday, December 13, 2017

Ham Radio 2m Backpack Quad Antenna. Post #1341.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=IAiiIzV8NpI.

Here's another portable antenna idea from Dave Tadlock (KG0ZZ). In this video, Dave shows us how to build a lightweight 2 meter quad antenna that can be carried in your backpack when you go camping, hiking, or participating in SOTA (Summits On The Air) events.  A more robust version can be used at your home station to hit distant repeaters or for trying some 2 meter DX.  Dave takes you step-by-step through the design, construction, and use of this versatile antenna.

For the latest Amateur Radio news and information, please visit these websites:

http://wwwHawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
http://amateurradionewsinformation.com (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).
Hawaii News Digest (https://prgnewshawaii.wordpress.com)

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise noted.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).


Tuesday, December 12, 2017

CommsToGo Radio And Backpack Antenna. Post #1340.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=IEidACZ1Ebc.

Here's another great portable/emergency radio "go kit" that can be assembled from locally available parts or from a number of online amateur radio equipment dealers. John Jacobs (W7DBO) has done an excellent job of designing and building a portable ham radio station suitable for field operations.  It's always a good idea to have a backup station available when disaster strikes or when you feel like bringing amateur radio along during a hike or camping trip.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
http://amateurradionewsinformation.com (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise noted.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Monday, December 11, 2017

Ham Radio - Salvaging a burned MFJ 962D versa tuner. Post #1339.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch/v=uWgP9YE9pOU.

A nice video tutorial from Kevin Loughin (KB9RLW) on how to fix one of the popular MFJ antenna "tuners"--in this case, a MFJ-962D Roller Inductor tuner rated at 1.5 KW.

Apparently, something in the roller inductor failed, leading to some burned components.  Kevin has done an excellent job of diagnosing the problem and then fixing the breakdown.  A clear, understandable step-by-step repair procedure.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
http://amateurradionewsinformation.com (Amateur Radio News & Information)

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).
Hawaii News Digest (https://prgnewshawaii.wordpress.com).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise noted.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).


Sunday, December 10, 2017

Portable ham radio antennas. Post #1338.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=5HTOWnMFj_E.

In this video, "Prepper Ohio" shows us some of the small, compact antennas available for Amateur Radio VHF/UHF hand held transceivers.  A good, basic tutorial on how to chose the best antenna for your HT.  It's been my experience that the standard "rubber duck" antenna that comes with most HTs delivers marginal performance.  A 1/2 wavelength whip antenna is perhaps a better choice.  You may also want to attach a "tiger tail"  to the base of your "rubber duck" stock antenna.  This 1/4 wavelength wire will increase the performance and efficiency of the stock antenna.  The "tiger tail" serves as a counterpoise wire, supplying the "missing half" of the helically wound 1/4 wavelength stock antenna.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://amateurradionewsinformation.com (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise noted.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Saturday, December 9, 2017

CUSTOM S-MATCH BALANCED HOMEBREW TUNER. Post #1337.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=IwXYP4vTOso.

If you use a balanced feeder to connect your rig to your antenna system, you'll need this simple S-Match balanced "tuner" for your shack.  The "tuner" will help match the impedance of your antenna to the impedance of your rig, insuring maximum power transfer and lowered SWR.

This video does an excellent job of taking you through the design and construction process of this simple balanced tuner.  Although the author of this blog says the "tuner" can handle 100 watts, perhaps you would be more comfortable in using this device at power levels below 30 watts.

For the latest Amateur Radio News and Information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
http://amateurradionewsinformation.com (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).
Hawaii News Digest (https://prgnewshawaii.wordpress.com).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise noted.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Friday, December 8, 2017

N4LQ Multiband Inverted L Antenna. Post #1336.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=uuD2mBZKH0g.

Operating a multiband HF antenna covering 160 through 10 meters on a city lot can be quite a challenge.  In this video, Steve Ellington (N4LQ) shows us how a modified inverted L antenna, a counterpoise system, and a wide range antenna transmatch (i.e. "tuner") can simplify your task. Steve says he used 100-feet/30.48 meters of wire for the inverted L, a counterpoise system, and a MFJ-998 antenna "tuner" to get 160 meter to 10 meter coverage.  Hopefully, some of Steve's suggestions can help you get on 160 meters without too much difficulty.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
http://amateurradionewsinformation.com (Amateur Radio News & Information).


Other sites of interest"

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).
Hawaii News Digest (https://prgnewshawaii.wordpress.com).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise noted.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).


Thursday, December 7, 2017

PORTABLE 20 METER VERTICAL WHIP ANTENNA VIDEO 2. Post #1335.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=vWsX_TTbCv8.

Here's a simple, effect portable antenna suitable for field operations and emergency work.  The antenna is ultra simple, using commonly available PVC pipe for supports, surplus wire for a radial ground system, and a steel whip from an electrical supply store or online from a variety of amateur radio outlets.  As configured in this video, this whip can be used on 20, 17, 15, and 10 meters.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
http://amateurradionewsinformation.com (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii News Digest (http://prgnewshawaii.wordpress.com).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise noted.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Wednesday, December 6, 2017

How to tune a Small Transmitting Loop (Magnetic Loop Antenna). Post #1334.


If you can't view this video, please enter this title URL into your browser search box: https://www.youtube.com/watch?v=QAWZKKWumcY.

An excellent, informative video tutorial on how to tune a magnetic loop antenna. In this case, the mag loop is the LNR Precision Loop, which has a tuning control built in at the base of the loop.  This loop is based on a design by W4OP.  This mag loop allows adjustments of the coupling loop which is critical for magnetic loop antenna design.

For the latest Amateur Radio News and Information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
http://amateurradionewsinformation.com (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com)
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com)
Hawaii Intelligence Daily (https://paper.li/f-1482109921)
Hawaii News Digest (https://prgnewhawaii.wordpress.com)

Be sure to check the blog sidebars and links for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).


Tuesday, December 5, 2017

Installing a G5RV Inverted V Antenna for HF use on a Fishing Pole. Post #1333..


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=t6vI4nZMemM.

The G5RV antenna is based on a design from Louis Varney (G5RV)(SK).  Originally, the antenna was made as a 3/2 wavelength antenna for the 20 meter band.  Over the years,  radio amateurs have modified the feed arrangement to allow operation on several bands, including 40, 20, and 10 meters.  Used with balanced feed line a 4:1 current balun, and a sturdy antenna transmatch (i.e. "tuner"), the G5RV can work other bands such as 15 meters.

In this video, "kloxieman" shows us how he installed the G5RV as an inverted V using a 30-ft/9.146 meters fishing pole as the support structure.  His use of a balanced feed line, a current balun, and an antenna "tuner" gives this G5RV excellent performance on the 40, 20, and 10 meter bands.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
http://amateurradionewsinformation.com (Amater Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).
Hawaii News Digest (https://prgnewshawaii.wordpress.com).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).




Monday, December 4, 2017

Mobile HF Grounding Basics. Post #1332.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=v6i2ZoT_P_8.

An excellent video from Dan Vanenehovnen on the basic grounding principles employed in mobile operations.  Dan explains how chassis grounding, earth grounding, and signal grounding effect the efficiency of your mobile rig.  A good introduction to mobile HF grounding basics for those of us who wish to operate from our vehicles.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
http://amateurradionewsinformation.com (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).
Hawaii News Digest (https://prgnewshawaii.wordpress.com).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).


Sunday, December 3, 2017

Hustler Vertical Antenna Modification for 12 & 17 meters. Post #1331.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=fvY6CxYNvhY.

The Hustler 6ATV is an exceptionally well-made vertical antenna, but, in its original condition, doesn't cover the popular 12 and 17 meter amateur radio bands.

In this video, K5ACL ("Signal Search") shows us how he modified the 6ATV to operate on 12 and 17 meters without affecting the other HF bands.

All you have to do is follow K5ACL's step-by-step procedure and trim/adjust to obtain a low SWR.  The estimated cost of this modification is approximately $8.00 (USD).

For more information, visit https://k5acl.net.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weeklypodcast which is updated each Friday).
http://amateurradionewsinformation.com (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Dailly (https://paper.li/f-1482109921).
Hawaii News Digest (https://prgnewshawaii.wordpress.com).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).


Saturday, December 2, 2017

Building a Doublet Aerial - Antenna. Post #1330.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=vAYbkVhsSBY.

Thanks to Adrian ("One Time Pad") for this excellent video tutorial on how to design and build a doublet antenna.  If you have doubts about your ability to make or erect this antenna, please ask for help from your local amateur radio club.  The project will go much safer and quicker with the help of friends.

Adrian has supplied a full list of components and materials for this basic HF antenna:

"Antenna Components: Copper wire for radiating element (I used multi –strand Flexweave) Ladder line/Open wire/Ribbon (I used 300Ω ribbon because its neater) x3 eye bolts with associated nuts as washers x1 straight wastewater pipe connector x2 access plugs for above wastewater pipe connector x2 wing nuts and bolts x2 Dog bone Isolators (to isolate end of each antenna leg) x1 spool Rosin core solder (i.e. solder with embedded flux) Cable ties Heat shrink tubing Mast Components: You will need to determine your mast location in advance. You will also need to determine where each (equally sized) leg of your antenna will end and then identify to what you will fix them to. Remember, the legs have to be electrically isolated wherever they terminate. x1 antenna mast (may take more than one section to reach desired height) x2 sets T & K wall brackets (to mount mast) Fixing bolts and Rawl plugs for above brackets U Bolts to fix mast to brackets x1 long bolt to act as antenna boom with fixings to hold pulley x1 Pulley x1 carabineer x1 rope/cord to hoist antenna Fixings to anchor dog bone isolators (dependent on situation) Tools: Screwdrivers (manual/electric) Spanners Socket set/torque wrench Drill (with selectable hammer action) Drill bits for metal (for work on mast) Drill bits for concrete/brick (for mounting mast brackets) Drill stand (with vice) Soldering Iron (need minimum 40W to do large gauge antenna wire) Heat gun (for heat shrink tubing) Permanent marker (for marking antenna length etc) Stanley knife Small file Safety googles"
--------------------------------------------------------------------------------------------------------------------

For the latest Amateur Radio news and information, please visit these websites:


http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
http://amateurradionewsinformation (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).
Hawaii News Digest (https://prgnewshawaii.wordpress.com).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Friday, December 1, 2017

Building a dipole for 40 and 20 meters. Post #1329


If you can't view this video, please insert this title URL into your browser search box: https://youtube.com/watch?v=RVKRnQmrx3k.

If you want a simple, effective, and inexpensive antenna for the 40 and 20 meter amateur radio bands, then this video by RC286 is for you.  This video documentary covers the theory, design, construction, and use of this two-band HF antenna.  Dipole antennas can do an excellent job if they are mounted high enough and clear from obstructions. Even if you can only support an inverted Vee dipole antenna on a single mast, you will still get good results.  Make one of these antennas for portable or emergency use.  This two band HF dipole antenna can also serve as a "backup antenna" in case your current antenna is disabled.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
http://amateurradionewsinformation.com (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).
Hawaii News Digest (https://prgnewshawaii.wordpress.com).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Thursday, November 30, 2017

Random Loop Antenna. Post #1328.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=39KyjSzw31I.

For those of you who have some space in your backyard, a random loop antenna can offer some interesting possibilities.  When I was upgrading my new home in the Puna District of Hawaii Island a few years ago, I erected a 540-ft/164.53 meters horizontal loop on my property's spacious backyard, thanks to some 30-ft/9.146 meters Norfolk Pine Trees around the lot. The antenna generally followed the guidelines outlined in this video from Stan Gibilisco (W1GV).

The key components of this experimental antenna were a balanced "tuner" (or a 4:1 balun/"tuner" combination), balanced feed line, and a good ground system for your station.  In my case, I used some speaker wire left over from a radio station news room renovation (I was working as a news announcer at the time for KHLO-AM 850/KKBG-FM (97.9 MHz), a roll of 300-ohm television twin lead, a 4:1 current balun, and my trusty Drake MN-4 antenna transmatch (i.e. "tuner").
Performance on the 80, 40, 20, 15, and 10 meter amateur radio bands was excellent, especially on local nets where low-level loops become good NVIS antennas.

If you follow Stan's guidelines, you can design, build, and use a random loop antenna with minimum expense and maximum pleasure.  If you do a lot of local or regional HF contacts, this antenna can deliver solid performance at a modest investment of time and effort.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
http://amateurradionewsinformation.com (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).
Hawaii News Digest (https://prgnewshawaii.wordpress.com).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Wednesday, November 29, 2017

How To Build A 10 Meter Dipole. Post #1327.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=84F4UgSWmQo.

If you're a newly licensed Technician Class Amateur Radio operator, there's an exciting world of DX awaiting you in the 10-meter band.  Technicians can use a small segment of the band for SSB contacts as well as CW portions of the 80, 40, 15, and 10 meter amateur radio bands.  Although propagation doesn't always favor 10 meters, there are times when the band is open throughout the world.  Why not build a simple 10 meter dipole antenna to catch those openings?

In this video, Randy Hall (K7AGE) shows you how to make an effective, inexpensive, and sturdy 10 meter dipole antenna.  Just follow Randy's step-by-step process, and you'll have a 10 meter dipole ready for use in only a few hours.
Randy's instructions are clear and easily followed.  Good luck.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
http://amateurradionewsinformation.com (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).
Hawaii News Digest (https://prgnewshawaii.wordpress.com).

Be sure to check the blog sidebars and links for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Tuesday, November 28, 2017

DIY 9:1 Ham Radio Antenna End Fed Longwire Random Wire


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=JawIvGu2DYU.

End fed random length longwire antennas can perform remarkably well if you have a decent ground radial/counterpoise system and a way to match the antenna's high impedance to your rigs nominal 50 ohm input.

In this video, "Signal Search" shows us how to match this antenna to your rig's input impedance with a simple 9:1 balun.  The balun is based on a design from the Emergency Radio Club of Hawaii (EARCHI).  This excellent video takes us step-by-step through the design, building, and use phases of this useful balun.

Once the balun is built and connected to your antenna transmatch (i.e. "tuner"), you should be able to use your longwire antenna on any amateur radio band from 40 meters through 6 meters.  For more information, please visit this website:
http://www.k5acl.net.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
http://amateurradionewsinformation.com (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).
Hawaii News Digest (https://prgnewshawaii.wordpress.com).

Be sure to check the blog sidebars and links for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Monday, November 27, 2017

Building a 6m antenna. Post #1325.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=FBGSvI5Cgn8.

If you've ever wanted to build an inexpensive, sturdy, and simple antenna for the 6 Meter Amateur Radio Band, then this video is for you.  Most of the parts can be found around your shack, at garage sales. and in the bins at your nearest home improvement or hardware store.  "Dafrogtoad" takes you step-by-step in converting an old VHF/UHF television antenna into a fully functioning 6 Meter Dipole Antenna--a great project that will save money and deliver good performance on "The Magic Band."

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).
Hawaii News Digest (https://prgnewshawaii.wordpress.com).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Sunday, November 26, 2017

Expanded Uses Of The Alpha Multiband Antenna 2-15-2017. Post #1324.


If you can't view this video, please insert this title URL into your browser searchbox: https://www.youtube.com/watch?v=Li-OqrAzbZ8.

Operating an amateur radio station from deed-restricted housing (HOA/CC&Rs) can be a difficult, often frustrating experience. Yet, with a little ingenuity and creativity, a decent HF signal can be launched from your restricted home, apartment, or condominium location.

In this video from N4CPB ("videosbymike"), we see how the popular Alpha Multiband HF Antenna can be used for amateur radio operations from a severely restricted space--in this case, Mike's Florida condominium unit. Mike's operating conditions aren't ideal. Please note that about 10-feet/3.048 meters of his antenna are blocked by the outdoor patio wall of his apartment.  Despite the restrictions, Mike is able to get some good contacts with this Alpha Multiband HF Antenna.  If you don't own one of these antennas, try making a small magnetic loop antenna, which many radio amateurs use in cramped operating conditions.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii News Digest (https://prgnewshawaii.wordpress.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Saturday, November 25, 2017

Multi-Band HF Fan Dipole Antenna Construction. Post #1323.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=PT1kSQjQIkM.

Do you want a multi-band HF antenna, but don't have an antenna transmatch (i.e. "tuner") to keep SWR low as you select your favorite band? Then, a multi-band HF "Fan Dipole Antenna" may be what you're looking for.  The antenna consists of dipoles for each band connected to a single 50 ohm coaxial cable feedline. 

In this video, Cory (N0ECK) and Alex (KD0YNH) take us step-by-step in designing, building, and using this simple, effective HF antenna.  According to Alex and  Cory, this antenna will work well on 80, 40, 20, and 15 meters without an antenna "tuner".  Be sure there is separation between the dipoles to reduce signal cancellation. 

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
https://paper.li/kh6jrm/1439289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).
Hawaii News Digest (https://prgnewshawaii.wordpress.com).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Friday, November 24, 2017

Getting Started on 6 meters, 50mhz, THE MAGIC BAND!! Post #1322.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=UcRuJvPEPrU.

If you've ever wondered what the 6 meter band holds for you, then check out this informative and laid back video from "Ham Radio Concepts" (KJ4YZI).

The idea for this video came from a recent ARRL VHF contest which encouraged KJ4YZI to investigate the nature and challenges of "The Magic Band."

The "magic" of 6 meters lies in its borderline location between HF and VHF, with the band showing characteristics of both HF and VHF.  Antenna requirements are modest, with a simple vertical or horizontal dipole offering plenty of contacts.

KJ4YZI does an excellent job of explaining the theory, operations, antennas, and equipment needed to work this slice of the radio spectrum.  As an added feature, you get the antics of Sophie, the official mascot of KJ4YZI's ham shack.

If you want a challenge in this time of uncertain propagation, try exploring the world of 6 meters.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).
Hawaii News Digest (https://prgnewshawaii.wordpress.com).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Thursday, November 23, 2017

Cubical Quad Antennas. Post #1321.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=BrvgcxVqwng.

Another excellent video tutorial from Dave Tadlock (KG0ZZ).  In this video, Dave reviews the basics of building HF/VHF cubical quad antennas. His presentation is clear, concise, and helpful. Dave does a good job of explaining the theory, construction, and operation of cubical quad antennas in a variety of operating environments. He also reviews the formulas used in calculating dimensions and spacings between elements.  Although cubical quads have been used extensively on the VHF/UHF amateur radio bands, they can also be found on some of the HF bands, including, 20, 15, 10, and 6 meters.  On lower HF bands (i.e. 40, 80, and 160 meters), quads tend to be quite large and bit unwieldy.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
http://amateurradionewsinformation.com (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (http://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).
Hawaii News Digest (https://prgnewshawaii.wordpress.com).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today...Happy Thanksgiving to you and your family.

Aloha es 73 de Russ (KH6JRM).

Wednesday, November 22, 2017

DIY Man Portable Magnetic Loop Antenna Beginners Build for Ham Radio. Post #1320.


If you can't view this video, please enter this title URL into your browser search box: https://www.youtube.com/watch?v=Dw1rz0CVn90.

In this video, Julian (OH8STN) does an outstanding job of building two man-portable magnetic loop antennas which can complement your "Go Kit" or backup antenna system. 

The video supplies specifications for two different antennas, based on the Chameleon Magnetic Loop Antenna.  Either of these antennas can be used in portable or emergency situations, where space and weight are considerations.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday.
http://amateurradionewsinformation.com (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).
Hawaii News Digest (https://prgnewshawaii.wordpress.com).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated..

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).



Tuesday, November 21, 2017

Super Expedient Stealth 160 Meter Antenna. Post #1319.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=pcnWkbiD79c.

Operating on 160 meters from a deed-restricted home, apartment, or condominium unit can be a difficult challenge.  You can still pursue contacts in "The Gentlemen's Band" if you use some creativity and willingness to experiment with the materials you have on hand.

In this video from "Ham Prepper", we see how a "junk bin special" can get you on 160 meters without nosey neighbors reporting you to the "housing police."

In this case, "Ham Prepper" used some 300 ohm television twin lead, a MFJ-989c antenna transmatch (i.e. "tuner"), and a quarter wave length of wire for 160 meters to get on the air.  Although this antenna could be improved considerably with a better ground radial or counterpoise system, it does work.  You do what you can with what you have around you. 

This video should give you some ideas for making a 160 meter antenna to fit the constraints of your property.  Experiment, test, and improve--eventually, you will find a combination that works.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
http://amateurradionewsinformation.com (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).
Hawaii News Digest (https://prgnewshawaii.wordpress.com).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Monday, November 20, 2017

HF Field Ops Gear-up. Dipole Antenna Tuning. Post #1318.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=cgdP8ao71Cc.

Here's another great idea for a temporary portable or emergency HF antenna designed for field use.  In this video, GUERRILLACOM designs, builds, and operates an effective NVIS (near vertical incidence skywave) dipole antenna. NVIS antennas are effective omnidirectional antennas that can cover local, state, and regional communications requirements.  This type of low-level dipole antenna is perfect for local nets, roundtables, and "rag chews."  Just design the antenna for the lowest HF band of use, feed the antenna with balanced line, attach a 1:1 or 4:1 current balun, run 50 ohm coaxial cable from the balun to your antenna "tuner", and you're ready to go.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
http://amateurradionewsinformation.com (Amateur Radio News & Information).

Other sites of interest:

Hawaii Scienc Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/1482109921).
Hawaii News Digest (https://prgnewshawaii.wordpress.com).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Sunday, November 19, 2017

ZS6BKW Antenna. Post #1317.


ZS6BKW Antenna
(https://w2lj.blogspot.com/2017/hmmmmmmmm.html).
Author:  W2LJ.
Accessed on 20 November 2017, 0125 UTC.
Please click link or enter title URL into your browser search box to read the full article.
Comment:

The G5RV antenna and it variants are great tools for antenna experiments.  One of the more popular G5RV dipole antennas is the ZS6BKW, which is an optimized G5RV covering the 10, 12, 17, 20, and 40 meter amateur radio bands without the need for an antenna "tuner".  The 6, 15, 30, and 80 meter amateur radio bands can be worked with an antenna "tuner" with some loss of performance and efficiency.

In this post by W2LJ, we see a preliminary design that will cover the 10,12, 17, 20, and 40 meter amateur radio bands without a "tuner".  All specifications are given, including total antenna length, the length of the 450 ohm matching section, the type of choke or current balun required, and the approximate lenght of 50 ohm coaxial cable needed to connect the antenna system to your transceiver.

If you have a few hours of free time, try building this antenna and see what it can do.  You may be pleasantly surprised.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
http://amateurradionewsinformation.com (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).
Hawaii News Digest (https://prgnewshawaii.wordpress.com).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Saturday, November 18, 2017

Wire Antenna Calculator. Post #1316.


Wire Antenna Calculator
(http://www.ws6x.com/ant_calc.htm)
Author:  Jim Clymer, Jr (WS6X).
Accessed on 19 November 2017, 0255 UTC.
Please click link or enter title URL into your browser to read the full article.

Comment:

If you experiment with HF amateur radio antennas, this Wire Antenna Calculator from Jim Clymer, Jr. (WS6X) will save you a lot of time as you configure and trim your HF antenna ideas.  I've made a copy of the article for my reference library, since I tend to try many antenna designs at my QTH.

Here are the main antennas discussed by Jim:

Standard Flat Top Dipole.
Inverted Vee.
Quad Loops.
Equilateral Delta Loops.
Full Wave Loops.

Each section carries some basic antenna theory and construction tips to maximize the performance of these popular antennas.

The calculator is simple.  All  you have to do is fill in the calculator form and press the calculate button.

For the latest Amateur Radio News and Information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
http://amateurradionewsinformation.com (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).
Hawaii News Digest (https://prgnewshawaii.wordpress.com).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Friday, November 17, 2017

NVIS: Near Vertical Incidence Skywave. Post #1315.

NVIS: Near Vertical Incidence Skywave
(http://www.arrl.org/news/view/the-doctor-will-see-you-now-43)
Accessed on 17 November 2017, 1630 UTC.
Authors:  Steve Ford (WB8IMY) and Joel Hallas (W1ZR).
Please click link or enter title URL into your browser search box to access the podcast.

Comment:

"NVIS:  Near Vertical Incidence Skywave" is the topic of the current issue of the "ARRL The Doctor is In" podcast.  The "ARRL The Doctor is In" is sponsored by DX Engineering and  covers "all things technical."

The twice monthly podcast features hosts, QST Editor-in-Chief Steve Ford (WB8IMY) and the "Doctor", Joel Hallas *W1ZR), who discuss a wide range of technical issues.

You can access the podcast directly by visiting https://www.blubrry.com/arrl_the_doctor_is_in/

For the latest Amateur Radio New and Information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
http://amateurradionewsinformation.com (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii News Digest (https://prgnewshawaii.wordpress.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Thursday, November 16, 2017

Doublet aerial for HF amateur ham radio short wave bands. Post #1314.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=8ZmyvtMvEGY.

This video is another great production from Ray of the "Radio Workshop" in the UK.  In this video, Ray provides all of the theory, construction practices, and uses of the classic "doublet antenna."  This old design can be used for both single and multiband use, depending on what feedlines and antenna lengths you choose. If you prefer the multiband approach, then this video is for you.  The concept is simple:  build a dipole antenna for the lowest frequency of use, feed the antenna with balanced line (300 ohm tv ribbon, 450 ohm ladder line, or homemade 600 ohm balanced line), run the balanced line into an antenna "tuner" that handles balanced line or connect the balanced line to a 4:1 current balun, and use a small length of 50 ohm coaxial cable to connect the balun to your antenna "tuner."  Place the "doublet" as high as you can and get set to enjoy some pleasant hours chasing DX.  Ray's video tutorial is excellent, well-produced, and easy to understand.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast that is updated on Friday).
http://amateurradionewsinformation.com (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).
Hawaii News Digest (https://prgnewshawaii.wordpress.com).

Wednesday, November 15, 2017

Ham Radio - Building a spiral loop antenna for 20 meters. Post #1313


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=ji19-6LPog0

Here's another clever magnetic loop antenna for radio amateurs unable to erect antennas because of CC&R and HOA restrictions.

Kevin Loughin (KB9RLW) calls his creating a "spiral loop antenna" for 20 meters.  The video does a good job of explaining the theory, construction, and operation of this magnetic loop antenna variation.  Most of the materials can be found in your ham shack or at the nearest home improvement and building supply outlet.  This is a fun and educational project that will deliver good performance at a moderate cost.

For the latest Amateur Radio News and Information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated on Friday).
http://amateurradionewsinformation.com (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).
Hawaii News Digest (https://prgnewshawaii.wordpress.com).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Tuesday, November 14, 2017

Ham Radio - Junk Box Magnetic Loop final design overview and on air test


If you can't view this video, please insert title URL into your browser search box (https://www.youtube.com/watch?v=ZTsYRyEkCkQ). This is post #1312 in a continuing series featuring simple ham radio antennas.

In part two of Kevin's (KB9RLW) mini magnetic loop transmitting antenna, we see how a few minor changes can enhance the performance of this small, "stealthy" antenna.  According to Kevin, this is final version of his mini magnetic loop antenna, which was made "from scrounged junk in my basement."  Kevin says the antenna "works surprisingly well" using only 0.5 watts in the WSPR mode.  This antenna will give radio amateurs living in deed restricted homes, apartments, and condominium units an way to get on the air without rasining the suspicions of nosey neighbors.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (http://hawaiisciencedigest.com).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).
Hawaii News Digest (https://prgnewshawaii.wordpress.com).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Monday, November 13, 2017

Ham Radio - Building a 1 foot Junk box magnetic loop transmitting antenn...


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=b9KSDvjycyw. This is post #1311 in a continuing series on Simple Ham Radio Antennas.

Experimenting with magnetic loop antennas is fun, educational, and often rewarding, especially for radio amateurs living in deed-restricting homes, apartments, or condominium units.

In this video, Kevin Loughin (KB9RLW) creates a working magnetic loop transmitting antenna from parts he found in his ham shack.  Despite some limitations, the antenna works and serves as a template for further magnetic loop designs.  Perhaps, this video will encourage you to build your own antennas.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated on Friday).
https;//paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintellligencedigest.com).
Hawaii Intellligence Daily (https://paper.li/f-1482109921).
Hawaii News Digest (https://prgnewshawaii.wordpress.com).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Sunday, November 12, 2017

New product for antenna testing. Post #1310.


New product for antenna testing
(http://www.sotabeams.co.uk/wsprlite-flexi).
Accessed on 13 November 2017, 0125 UTC.
Author:  SOTABEAMS.
Please click link to read the full article.
Comment:

On Saturday, 11 November 2017, UK antenna manufacturer, SOTABEAMS, announced the release of a new antenna tuning system called WSPRlite-Flexi.

According to SOTABEAMS, the new antenna device covers from 6 meters through 630 meters--just right for radio amateurs experimenting on the 630 meter band (472 kHz to 479 kHz).

Here are some of the features of the Flexi System:

"The Flexi also incorporates a number of new facilities including a unique interference avoidance algorithm to help it avoid interference from other WSPR users. When combined with the DXplorer.net website, WSPRlite provides a unique way to look at antenna performance and to see how propagation varies in real-time.
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For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday).
https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).
Hawaii News Digest (https://prgnewshawaii.com).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).