[TowerTalk] 40M on TH11

[Bill Cotter]

I agree with Dennis that a simple gamma or omega match on the boom 
of the TH-11 would give you a decent antenna for 40m, high in the air.

I would suggest using 12ft of 1" 6063 tubing, stood off the boom by 
6-10", electrically attached at one end of the boom, running the 
full length to the mast clamp. Your tuning unit could be located in 
a weatherproof box on the mast.

The pattern may be weird, but the cost would be minimal. Another 
option would be to extend the boom in either direction to make a 
longer dipole.

73 Bill N4LG




At 09:12 AM 3/9/2016, Dennis W0JX via TowerTalk wrote:
>Placing the 40M dipole parallel with the boom is the best approach 
>if you can get it up 6 or 7 feet above the TH-11.
>
>Otherwise you can try to load the boom on 40 meters. You attach 
>the shield to the center of the boom and then tap the center 
>conductor out on the boom by using a gamma rod. I don't have the 
>details but perhaps someone on this reflector knows where to find 
>the article about how to do this.
>
>73, Dennis W0JX
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