[Elecraft] Ground Strap

George, W5YR [email protected]
Tue Oct 8 00:44:01 2002


Solid copper sheet is much better for r-f purposes than braid. When used
indoors braid is not too bad, but outdoors the braid oxidizes quickly and
develops high r-f resistance. It is fine inside the coax outer layer where
it is pretty well sealed from air and moisture, but when exposed to air and
humidity, it will start oxidizing and lose a lot of its effectiveness for
r-f. It is mainly a skin-effect situation . . .

73/72, George    
Amateur Radio W5YR -  the Yellow Rose of Texas
In the 57th year and it just keeps getting better!
Fairview, TX 30 mi NE of Dallas in Collin county EM13qe
K2 #489      Icom IC-765 #2349     Icom IC-756 PRO  #2121


[email protected] wrote:
> 
> On Mon, 7 Oct 2002, Stuart Rohre wrote:
> 
> >  A few years ago, we found some copper weather-stripping used on door frames
> > in 25 foot rolls, and used that to ground our club station desk and rigs to
> > the nearest water pipe outside the shack wall.
> > -Stuart K5KVH
> 
> I use 1" tinned copper braid personally.  If I remember correctly, a 50ft
> roll of it was less than $50.00.  I think I got it from CableXperts.  Here
> is a link to the page where they sell it:
> 
> http://www.cablexperts.com/cfdocs/cat.cfm?ItemGroup=7&itmsub=0&bskt=0&USA_ship=1&c=0
> 
> And I remembered correctly.  50ft of it is less than $50.00 USD.
> 
> 73 de John - KC4KGU
> K2/100 #2490