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Old March 10th 06, 10:23 AM posted to rec.radio.amateur.antenna
 
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Default Safety ground versus RF ground for a 2nd Floor shack


jawod wrote:
I know this has been addressed on the group before but I remain confused.


My own gut says safety first, lower risk of RF issues after-the-fact by
? what ?

I remember suggestions of coiling the ground wire in an RF choke,
multiple ground lines of various lenghts to mess with harmonics.
Ferrite beads? Chicken blood and a black cat?



John,

You have been misled and confused by bad information.



Richard Clark has given you good advice.


The only antenna that requires an RF ground is an antenna with a single
conductor feedline worked against ground, or an antenna that is poorly
designed or constructed.

The only reasons to have a hamshack ground, unless you are trying to
band-aid an antenna that is improperly constructed or feed a longwire,
are electrical safety and lightning.

Electrical safety can be taken care of by using a three wire outlet
with grounding to the sagfety ground, and by following national codes.
National codes require your station ground be bonded to the power mains
entrance ground. We are not suposed to have two isolated grounds
according to NEC, and it is a bad idea to have isolated grounds for
lightning, safety, and RFI reasons.

I'm afraid all the talk about ground loops and such have confused you.

Try reading this:

http://www.w8ji.com/ground_systems.htm

73 Tom

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