[TowerTalk] 30/40m on 1 boom

Herbert Schoenbohm herbert.schoenbohm at gmail.com
Fri Oct 7 11:24:01 EDT 2016


By spacing the 10MHZ driven element a few inches away from the 40 meter 
driven element (adjust the distance for minimum swr on 10 MHz) you can 
easily use one feed line.  Several manufacturers use this method of 
exciting other bands for multi band antennas.


On 10/7/2016 10:47 AM, Ed Stallman wrote:
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> I like building my antennas , I can build a shortened 2 element 30 or 
> 40m using loading coils but not sure about having both on same boom . 
> Be nice using one feedline but I'm okay using separate feedlines  for 
> each band. I see the big antenna manufactures doing it with success . 
> Does anyone have a recipe for an antenna like this ? Or can point me 
> to a URL that I've overlooked in my searching ? Using antenna software 
> is above my pay grade but good with hand and tools
>
> Thanks Ed N5DG
>
>
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