Grounding A Radio ?

Hello:



Presently using a random length wire running around my attic (for receiving
only).



My receiver now has a ground wire running from the chassis to a nearby water
pipe, and also has grounding via the center pin on the ac power cord.



Will be installing an outside PAR Inverted-L receive only antenna.

There will be a Balun and an ICE Arrestor near ground level; both of which

will be grounded to a new ground rod I'll bang in, in close proximity.



Then, about a 125 foot coax run back to the house where my receiver is

in an upstairs room.



Am wondering about how all ground your receivers, and what might be the best
way for me to. Hope the following is reasonably clear, and not too
convoluted, but let me try -



Questions:



Should I disconnect the receiver ground going to the water pipe ?

This would help implement the "single point ground philosophy"

that everyone says is the way to go.



If I do, can I then rely solely on the coax shield being the receivers
ground ? This would be from the radio chassis to the ground bar, of course.



Then there's the question of the AC power plug's center pin grounding the
chassis.

There goes my single point system, I guess.

Should I perhaps inhibit this pin with one of those cheater-plugs ?



I'm also wondering about any safety implications if I do disconnect the
chassis to water pipe

ground wire I previously installed, AND also use a cheater-plug so the
chassis isn't directly

connected to the AC ground at the plug. Not sure if just relying on the
coax

shield back to the ground bar is safe ? Thoughts ?



Also, my house 220 V input does not seem to have any ground rod

outside, like I believe the new code requires. It does seem to have an
interior wire

running to my house's water line. I seem to remember from years back when
the service box was opened that this wire was from the neutral bus, but not
100% sure.



I would not really want to change or disrupt this present house grounding
scheme by bringing this wire 125 feet or so to the new ground rod I will be
installing.



Any thoughts or suggestions on what would be the best grounding
configuration for

the radio (from a noise, safety, and possibility of any induced lightning
surges) ?



Thanks,

Bob


.

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