on 3/14/02 5:16 PM, Richard at 2@mail.vcnet.com wrote:
>> No, not now. I have a high power yagi balun by Unadilla (I think that's how
>> you spell it). Not sure of the internal construction. I didn't like the
>> performance of the coaxial choke balun.
>>
> ? Why not ?
> I would try a coaxial choke balun with c. 18' of coax at the output of
> the amplifier and see if RF still gets in the radio.
At the output of the amplifier - now that's an interesting place to put it.
Why there and not at the antenna feedpoint?
> - The 1000D gnd should not be physically connected to the antenna side of
> the coaxial choke balun. Such a balun is essentially as good as the coax
> it is made from, provided it is not operated near the self-resonant freq.
Interesting. Might be something I'll have to try out.
73,
Jon
NA9D
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