Topband: Grounding TX antenna

[Richard (Rick) Karlquist]

On 10/18/2011 8:29 AM, rick darwicki wrote:

> I am using a DX Engineering current feed line choke at the base on my elevated inverted L for 160 M and a N6RK shielded coax loop with varactor tuning for 80-160M.
>
> The loop is only 20 feet away from the TX antenna and if I ground the inverted L coax at the shack end there is no reduction to reradiation noise that I can hear.
>
> I was wondering if with the feedline choke I need to short the L to ground on the antenna side of the choke?

> Rick, N6PE

You want to OPEN the inverted L to take it out of play during receive.
Having said that, the pattern of the loop could still be distorted.
I know that a loop doesn't work well near my 40/80 meter inverted vees, 
which are certainly not resonant on 160.

Rick N6RK