Vertical Antennas-Ground Radials



If you can't see the video, please insert this title URL into your browser search box:


One of the major problems with vertical and random length wire antennas is the installation of an effective ground radial or counterpoise system.  Without a good ground radial system, the performance of your 1/4 wavelength vertical or long wire antenna will suffer.

In this video from Callum McCormick (M0MCX), we see one way to design, install, and test a ground radial system for HF vertical antennas.

Here are some of Callum's comments:

Ground Radials are a thing of "Mystique". I use the formula of using 4-wavelengths of wire in total, cut into random lengths to suit.All my radials are LESS than 1/8th of a wavelength. For 80m, my radials are around 2.4% of the wavelength. My experience and demonstration in a real-world solution will assist our thinking. HEY, Subscribe here: https://goo.gl/thM5Vq My Shop: https://www.m0mcx.co.uk/store/products/ Playlists: DX Commander: https://www.youtube.com/playlist?list... My Crazy Vlogs: https://www.youtube.com/playlist?list... Ham Radio Foundation Training: https://www.youtube.com/playlist?list... Goodies for radio buffs: https://www.youtube.com/playlist?list... Software for Radio Guys: https://www.youtube.com/playlist?list... Antenna Software Modelling: https://www.youtube.com/playlist?list... Ham Radio Tips: https://www.youtube.com/playlist?list... PS Sub-Titles help out some folks and non-English speaking people. If you are bi-lingual, you can help the others by contributing your time to closed caption subtitles here: https://www.youtube.com/timedtext_cs_.... Let me know if you've done this and I can give you appropriate credit. Enjoy your science folks. Good luck. Callum. M0MCX. DX Commander Founder.
-----
Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

 

Comments

Post a Comment

Thank you for visiting my Amateur Radio Blog. I value your comments and suggestions. For Amateur Radio Antenna Topics and Discussions, stay here. For Amateur Radio News and Trends, please visit my news site at https://bigislandarrlnews.com.
Aloha es 73 de Russ (KH6JRM).

Popular posts from this blog

G5RV Multi Band HF Dipole Antenna. Post #1555.

Image
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
Read more

Antenna for Condo Backyard-Stealth. Post #1542.

Image
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 &
Read more

Amateur Radio Bicycle Mobile Setup. Post #1554.

Image
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).
Read more