"Tian_Li" wrote

Use a dedicated ground power outlet for your computer.

Unless you have a 1-radio "station" and no lightning protection of any
kind,
this is a very bad choice.

The dedicated power outlet for the COMPUTER is wired by the electrician so
that
both ground leads (white and green) are wired directly to the breaker
panel.
The power and ground is NOT
looped to other outlets. It is a dedicated power (and ground) outlet for
computer use only.
It is typically an orange colored power outlet.

This was not intended for radio use. It is simply suggested to keep radio
equipment powered
on a separate power circuit from the computer with the computer ground
going
directly to the breaker panel ground.
That IS the single point ground for the house power wiring - at the
breaker
panel.

Our discussion here is about radio, and that is not a helpful or cost
effective modification to make. Neither does it provide separate power to
the computer as you allege, it is merely a dedicated neutral and ground
connection to the mains. If electrical planning or mods are being done, much
better to provide the radio room with its own branch panel. Having a
computer on the radio circuit is not a problem, having the whole house on
the radio power loop can be.

Your description of single point ground for the home wiring is correct, but
not complete. The radio station has its own single point ground, and all AC
equipment in a radio room must bond to that. Equipment bonding in the radio
room would immediately negate the questionable benefit that a dedicated
computer neutral/ground offered. One grounding electrode conductor from the
station single point ground to the AC mains single point ground is required.
This creates an unavoidable loop, which is why truly separate power to the
radio room is desired, not a useless dedicated ground for a single piece of
equipment. The one noisy dimmer switch I have in my dining room, no longer
affects the radios since providing separate power to them.

Jack