Martin Ewing wrote:
> Yes, but... It's still worth trying to establish a local RF "ground" --
> ensuring that everything in your shack is bonded together. No antenna
> system is perfect, and many of us have some RF in our shacks. Fortunately,
> the same bonding is needed for lightning and AC safety reasons, although
> inductance is not a worry at 60 Hz.
> The ideal is a Faraday Cage - enclosing your shack in a (nearly) solid
> conducting box.
But a Faraday cage is NOT a solution to the fundamental problem -- RF
CURRENT flowing where we don't want it. A Faraday cage addresses the E
field (capacitive coupling) and poor shielding. The E-field is rarely an
issue with ham gear.
The E-field and poor shielding IS a common problem with consumer gear,
but usually 10-20dB less problematic than pin 1 problems excited by RF
current. If you're going to build a Faraday cage, build it in your
living room or office where your computers are, not your ham shack. :)
Jim Brown K9YC
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