Tom,

I would try disconnecting that short ground wire between your electrical 
ground and your shack's ground rod.  There is a lot of controversy about 
using one common ground for your entire qth.  I know of one local ham 
that had lightning strike aftr another until he separated his ham ground 
from the eletctrical ground.

Bob, K8LR, [log in to unmask]

On 2/21/2016 12:06 PM, Tom Behler wrote:
> Bob or anyone:
>
> I wonder what would happen if I disconnected the ground wire between the
> ground rod below my shack, and the ground on the electrical power box.  It
> is only a short wire, and I can't believe it should make a difference, but
> with this sort of thing, you never know, I guess.
>
> I've tried some snap-on RF chokes on the output of my TS590, and the common
> port of my Alpha Delta antenna switch, but so far nothing has changed
> significantly.
>
> Will keep at it here.
>
> Tom Behler: KB8TYJ
>
>
> -----Original Message-----
> From: For blind ham radio operators [mailto:[log in to unmask]]
> On Behalf Of Bob Tinney
> Sent: Sunday, February 21, 2016 12:15 AM
> To: [log in to unmask]
> Subject: Re: RFI Update
>
> Tom,
>
> That means that RF is coming down your coax lines from your antennas, and
> that you have a long ground wire which will radiate that Rf.  You also could
> be having a ground loop between your electrical and RF ground rod.
>
> I would try a coax RF choke at each antenna and or connecting a second
> ground wire that is a few feet longer which should lower your RF ground
> reactance.
>
> Bob, K8LR, [log in to unmask]