A Hawaii-based Amateur Radio Antenna Blog focusing on the theory, design, and use of homemade antennas.
2 Meter Antenna Tuner, One Evening 2 Meter Tuner Project.
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Here's an easy one evening tuner project for the 2 Meter Amateur Radio Band.
Robert Sumption (N8RS) takes us through the design, construction, testing, and use of this valuable antenna accessory.
If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=9t_tKgDvGRI.
Here are some comments from Robert (N8RS):
Checking out an Icom 746PRO on 2 meters using a copper J-pole antenna
on the tower I found the SWR of the J-pole was 3.5 to 1.0 quite high . We had high winds this winter and the J-pole was bent . Its to cold to do the repair now and I got the idea to make a quick little 2 meter antenna tuner
as a one evening project . The construction is shown in the video it is a standard PI network tuner both variable capacitors are grounded to the case the number 14 wire goes from one coax connector (SO239 ) directly to the stator of the first variable capacitor then continues as the 2 turn 5/8th inch coil connected directly to the stator of variable capacitor number 2 then directly to the second coax connector (SO239) very simple . The tuner coil is 2 turns of number 14 wire 5/8ths of an inch diameter I wound it on the smooth end of a 5/8ths inch drill bit and left 3 inches of #14 wire on each end to connect to the coax connectors . Anything that is close to that 5/8ths inch diameter should work winding the 2 turn coil part . It took 2 hours from start to finish to make and test it was an enjoyable project that works good and I will use here . Projects like this for me help with the Cabin fever we are experiencing here with that nasty virus going around . 73 Bob
If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=aeNHIQ_j4Dk This well-produced and richly illustrated tutorial on the classic G5RV HF Dipole Antenna was presented to the Brandon Amateur Radio Society in Brandon, Florida in 2017 by Bernie Huth (W4BGH). Bernie does an excellent job of explaining the pros and cons of this popular HF antenna from the late Louis Varney (G5RV). Although Varney envisioned his design primarily as a 3/2 wavelength antenna for the 20 meter Amateur Radio band, radio amateurs have used the antenna for multiband use. The G5RV is an excellent choice for the 20 meter band. Performance on other HF Amateur Radio bands is good enough to qualify as stand alone HF antenna if you can only erect one HF antenna. For the latest Amateur/Ham Radio news and information, please visit these websites: http://www.HawaiiARRL.info. http://www.arrl.org. http://www.arrl.org/arrl-audio-news (a wee
If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=MXTYTytR56A. Don't let deed-restricted properties (HOA/CC&R) stop you from enjoying Amateur Radio. In this video from AC2RJ, we see how some well-placed trees, a camera tripod, a telescoping fiberglass mast, and a "V" antenna can get you on the air without a lot of effort. Add an antenna "tuner", a sturdy rig, such as the Yaesu FT-817, a microphone/cw key, and a simple grounding system, and you have a fully functional, nearly invisible ham station in your backyard. For the latest Amateur/Ham Radio news and information, please visit these web sites: http://www.HawaiiARRL.info. http://www.arrl.org. http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon). https://hamradiohawaii.wordpress.com. https://bigislandarrlnews.com. https://amateurradionewsinformation.com (Amateur Radio News &
If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=2zWb-KnkGdY. Here's a way to use Amatuer/Ham Radio while you work on shedding a few pounds in useful exercise. Why not equip your bicycle for 2 meter/70 cm mobile operation? In this short, well-made video, "taverned" shows us how he used a mag mount antenna, a simple C clamp, and a basic ground system to convert his mountain bike into a mobile station. The project is straight forward, simple, and gives you emergency communications while you peddle down the road. For the latest Amateur/Ham 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 afternoon). https://hamradiohawaii.wordpress.com. https://bigislandarrlnews.com. https://amateurradionewsinformation.com (Amateur Radio News & Information).
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Aloha es 73 de Russ (KH6JRM).