[Premium-Rx] Grounding Receivers

[Blair Batty]

>Next, an isolation transformer to power the receiver is a big help,
>especially if
>it has low interwinding capacitance and / or Faraday shielding. Much of the
>RFI on
>longwave is capacitively coupled into the receiver thru the AC line,
>especially the
>15.734 KHz horizontal oscillators in TV sets, and the COPIOUS harmonics of
>same!
>
>Finally...  if possible, make sure that your receiver ground is TOTALLY
>isolated from the AC power company ground.

Hi Ben:

Grounding is something I've been puzzling with.

The AC power for my shack goes to a 240v, 15 amp Sola Isolation
transformer, which isolates and voltage regulates my shack power.
The Sola metal cabinet is bonded to the Utility ground wire. The heavy
transformer inductance also kills any rfi and spikes.

The ground wire of the Sola secondary output cable is connected
to the shack's RF, antenna and equipment common bonding
point (connected to ground rods), before going to AC outlets. So all
equipment, antennas, and AC ground was isolated from the Utility
supplied ground; and Utility power noise on the AC lines didn't get into
the shack power.

Unfortunately that arrangement is illegal. So I've connected the utility
ground to the shack AC power ground by jumpering at the Sola
Transformer. So my question is, do I leave the jumper in or not?
I don't mind being illegal, if it's quieter and safe.

Sincerely
Blair

p.s. Please reply directly, if you feel it's off topic.