[TenTec] Orion and RF Feedback

[John K Gotwals]

I was able to get my Orion + L-4B working on 40 meters today by using choke 
filters between the Matchbox and amplifier and between the amplifier and 
Orion. In addition I draped about 35 feet of #24 insulated out the window 
and diagonally down the outside wall. The far end electrically floats, and 
the end in the shack is connected to the grounding post on the Johnson KW 
Matchbox.

Another responder had remarked that in a somewhat similar situation he had 
not used a ground. That is the same as was the situation at my previous QTH 
where connecting an earth ground made the problem worse. I will probably 
follow Mike's suggestion, but if it makes the situation worse, the ground 
will immediately be disconnected.

Thanks everyone for your responses.

----- Original Message ----- 
From: Mike Gorniak <mgorniak at genesiswireless.us>
Subject: Re: [TenTec] TenTec Digest, Vol 46, Issue 45
To: tentec at contesting.com
Message-ID: <4533A795.8050101 at genesiswireless.us>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Hi John,

If you are going to run that wire down to a ground rod, you might try
using coax instead. Attach the center conductor Only at the rig end, and
connect Both the shield And the center conductor at the ground rod end.
Another variation is to connect the center conductor Only at both the
rig and ground rod ends, and then use a .1 or .01 mfd. capacitor to
connect between the shield and the Center conductor at the ground rod
end, or both ends.

When I had my ham shack on the second floor, this configuration worked
for me.

Good Luck, and please let us know of your progress!
----- End Original Message -----