[RFI] w7ekb & ground rods
D C _Mac_ Macdonald
k2gkk at hotmail.com
Thu Jan 15 17:45:19 EST 2015
DX Engineering carries flat copper tape. I bought 25' to use divided into thirds to taper connect each tower leg to a ground rod outside the concrete foundation. They also have special clamps for the tower legs AND 5/8" ground rods that will resist corrosion.
Copper braid from coax will disintegrate from a lightning hit. All those copper strands add up to a whole lot of inductance and therefore, inductive reactance and a huge voltage drop. I have seen the little bit left of braid shield after a tower has taken a strike!
* * * * * * * * * * *
* 73 - Mac, K2GKK/5 *
* (Since 30 Nov 53) *
* k2gkk hotmail com *
* Oklahoma City, OK *
* USAF & FAA (Ret.) *
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> From: kgordon2006 at frontier.com
> To: jim at audiosystemsgroup.com; Rfi at contesting.com
> Date: Thu, 15 Jan 2015 13:40:26 -0800
> Subject: Re: [RFI] w7ekb & ground rods
>
>
> Jim:
>
> After reviewing the above link (and downloading it), it seems quite obvious
> that I have one hell of a lot of work to do.
>
> Can you suggest a source for flat wide copper "tape" ?
>
> And for copper braid, other than from old coax? (I suspect braid from old
> coax will not be wide enough, and if it is corroded, the individualy strands of
> copper may be insulated from one another.)
>
> So....it appears that my moving that useless 30+ feet of #8 "ground" wire DID
> reduce my local noise level by a good 10 dB.
>
> I would never have thought of that in a million years.
>
> Ken W7EKB
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