On Oct 10, 9:58*pm, Michael Coslo wrote:
Yard with a maximum antenna possibility of 100 feet.
Make it 102' and you could hang a G5RV for 75m, 40m, 20m & 12m.
Or, is there anything that would contraindicate using this approach?
The SWR on the ladder-line will be very high (~30:1) on 75m and too
high on 160m. When a dipole is less than 1/2WL on the lowest frequency
of operation, the feedpoint resistance goes down and the feedpoint
reactance goes up as the frequency is decreased. As the antenna-length/
wavelength ratio goes down, the SWR goes up. Here is some information
on a 130' all-HF band ladder-line fed dipole.
http://www.w5dxp.com/notuner.htm
One could short the ladder-line wires together and feed the antenna
against ground for 160m operation.
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73, Cecil, w5dxp.com