On Mon, 04 May 2009, Richard Clark wrote:

A very good description of your set-up. You are already
grounded through a the haphazard path of your AC outlet
- if you chose to use three prong connections, if your outlet
is in fact grounded, if your equipment actually has a safety
ground to chassis. A lot of "ifs," hence my use of "haphazard."


Okay, I have checked each of those. The house was recently inspected
ensure compliance with recent building code requirements, with the
outlets and overall grounding system checked for proper wiring at that
time. The house wiring exceeded current building requirements, which I
was indeed happy to hear.

The radio uses a three-prong cord (a requirement here), with the
chassis apparently connected at several points to the ground of that.
It appears the antenna shield side of the connector is also bolted
directly to that chassis.


By deliberately adding a ground wire going to an ad-hoc
ground rod, you can easily introduce problems. (snip)


So you recommend no additional grounding?

stewart / w5net