How would you like to maximize your 10m antenna performance?
You can by converting an old 5/8ths wave CB antenna for the 10 meter Amateur Radio band.
In this video, Ian (ianxfs) reengineers a common CB vertical antenna to produce a 5/8 wave vertical antenna for the 10 meter band.
Done properly, you'll have modest gain over the basic 1/4 wave vertical antenna and a lower angle of radiation.
If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=eboJV6rY4a4.
Here are some comments from Ian (ianxfs):
Further development of a design from the website below where a commercial 5/8ths wave CB antenna is reverse engineered. This enhanced model is tuned specifically for the 10m amateur band and also adopts a ferrite choke, which is an improved option over the air-wound choke which is also shown in the build.
The parts for this simple DIY build probably already exist in your shack? If not, they come to about Β£5 for the air-wound choke model, or about Β£10 if you go for the ferrite choke model. A list of parts:
Main Antenna = 3.5m RG58 coax + 3.25m of insulated wire
Air-Wound Choke = 3.6m RG58 coax (or) 9 Turn Ferrite Choke = 73cm RG58 coax (+ the ferrite) - a 12 Turn on a 52 or 61 core will use a little more coax, say 1m in total.
Matching Stub = 71cm Westflex 103 coax
Original CB antenna article: https://radioaficion.com/cms/sirio-ga...
G3TXQ chokes: http://www.karinya.net/g3txq/chokes/ (follow the links mid-page for detailed and updated analysis for specific ferrite types)
This is one of many amateur/ham radio related videos on my channel. Please feel free to browse π, like ππ» and subscribe π (it's free!), remembering to hit the bell so youβre notified of new videos as soon as they're published and you don't miss out.
Part two of this 5/8 vertical series can be seen at: β’ 10m 5/8th Vertical Antenna Field Trials
Here's a link to the Westflex-103 specs if you have trouble sourcing some: http://www.whwestlake.co.uk/westlake-...0:00 Introduction
0:30 Theoretical Antenna Design
4:10 Practical Antenna Design
6:20 RF Choke Options
8:06 Antenna Build
11:02 Antenna Testing
12:29 Summing Up
Thanks.
Ian.
β’ 10m 5/8th Vertical Antenna Field Trials
Here's a link to the Westflex-103 specs if you have trouble sourcing some: http://www.whwestlake.co.uk/westlake-...
0:00 Introduction
0:30 Theoretical Antenna Design
4:10 Practical Antenna Design
6:20 RF Choke Options
8:06 Antenna Build
11:02 Antenna Testing
12:29 Summing Up
Thanks.
Ian.
