George \(K8GG\) & Marijke Guerin wrote:
>> Has anybody on this list had experience with using open wire type
>> feeders with verticals? All of the literature on verticals refer almost
>> exclusively to coax feeds.
The only way to do this is to do what I do, which is to have a 450 ohm
balanced to 50 ohm balanced transformer at the antenna, and operate
the open wire line at fairly low SWR.
>>
>> The main issue I have is limited room, in that a 1/4w 160 m transmitting
>> antenna is out of the question, and I want to use it for 80m as well,
>> but avoid lossy trap arrangements.
>> VK4TGV
Any 160 meter vertical can also be driven on 80 meters as a voltage
fed antenna. You just need a different matching network at the base.
You don't need a trap. Traps only become necessary if you want
to operate over more than a 2:1 frequency range.
Rick N6RK
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