Hi again,
This may not be possible to answer with anything like 10% accuracy but can
someone give me an idea just how much capacitance I need for putting up a
50-55' vertical wire up the lower half of my tower to detune it on 75 meters
around the DX windown (3790-3800 Khz). The tower is Rohn 55 with 117' above
ground. A 3 element 20-6 mtr Steppir at 118', a GP6 at the very top with peak
at 134' and a 40 meter dipole (63' or so) at 104'. I have my K8UR style
4-Square around the tower with the lower half of the slopers pulled in towards
the tower.
Since I've not been able to get a beverage or bog to work due to a lot of noise
I'm going to run a detuning line up to below my Comtek unit at 64' and try
detuning the tower. But I just don't know what to expect to need for
capacitance to detune the tower.
Terry
KI7M
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