If the building has a steel infrastructure, your lowest-R and lowest-L path will likely be to tie to the building steel. However, there are code implications for doing so (as well as any other tower grounding) so be sure to check local codes and/or NEC. If building steel isn't an option you may have to run the ground wire all the way down the side of the building to a ground rod (electrode). Again, see NEC.
The AC ground on the recepticle is not a good idea in any case.
--- Jeff
> -----Original Message-----
> From: Repeater-Builder@yahoogroups.com
> [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED]
> Sent: Friday, December 30, 2005 2:23 PM
> To: repeater-builder@yahoogroups.com
> Subject: [Repeater-Builder] polyphaser Help
>
> Replacing a small, rooftop (about 90ft) repeater setup. The
> prior system had no lighting protection, just straight coax
> from antenna to duplexer. I was looking into getting a
> polyphaser if needed but there is no way to ground it that I
> can tell. Two options I have would be to somehow tap into
> the metal roof and connect it to that? or at the radio-end of
> the coax attach it to a nearby AC outlet's ground? A
> grounding line/rods aren't a real good option since it is on
> another businesses property. Any suggestions?
>
>
>
>
>
>
>
>
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