[R-390] Grounds

[FISCH, MICHAEL]

Hi:

I finally moved the shack to the  basement, pounded an 8' ground rod outside near the shack and I am more-or-less ready to attach a real ground wire and put up a real antenna for my 390a.  Now this has lead to a question.  My AC service entrance is on the other side of the basement.  If I ground the input coax, then I have my receiver grounded at two places (low freq at the service entrance) and RF (but I imagine low freq also) via coax and a ground wire from my ground.  This seems like a ground loop ready to happen.  The pearls had a lot of good info, but I did not seem to find this one.   The ideal I imagine would be to have the shack near the service entrance, or all at RF ground.  I imagine that using a fireman's friend to lift all the AC power grounds and the external ground is not good practice.  Also many of the more practiced people on the net have undoubtedly solved this.

My thanks in advance.  Remember the soldiers that died for our freedom on this Memorial Day.

Mike