Topband: Static build-up on non-grounded antennas

[Bill Tippett]

SM3BDZ:

> Regarding Carl's, SM6CPY, question and responses to that.
> Sure would an RF-choke or a resistor serve to discharge the antenna and keep its potential at ground level. But on the other hand, if you are using an amplifier (which most of us are) it should present a DC short to the antenna thru the coax, as tube amplifiers already have an RF-choke across it's output. Transistor amps usually have a lo Z output for DC, so that would be the same. So, the remaining question is: Why does'nt that help?


"OZ1AXG Flam" <oz1axg.nospam at dxmail.dk>:

Because the amplifier is bypassed when you are receving.
I put a 2 MOhm carbon-type resistor to ground on the 3/8, just in case.

OZ1AXG Flam