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Re: RG-6 quad shield for 72 ohm cable and other antenna questions



On 29 Dec 2005 at 13:36, i8cvs wrote:

> Hi Luc, VE2DWE
> 
> 34" long from tip to tip of the pl-259 is correct for the velocity factor of
> a foamed RG59U coax cable.
> 
> The velocity factor of  a RG-6 is 0.659 (solid polyethylene dielectric)
> so that the total lenght from tip to tip of the pl-259 through a T connector
> at 145 MHz is 26.84 inches or 68.17 centimeters
> 
> Much better to use N connectors.
> 
> I got nice results even soldering directly the inner conductors and the
> braids of the above maching lines provided the tips are very short and
> the braids are directly soldered over the copper surface of a small piece
> of PCB i.e. G-10 or any other material.
> 
> A protection of clear silicon over the soldered points is recommended
> against water and pollution and it worked well to me for many years.


Thank's for your input Domenico

I will try your end of the line shorts this will simplifies the use of N type 
connector on RG-59/6 type coax.

buono e felice anno

"-"
"It is not the class of license the amateur holds, but the class of the amateur 
that holds the license."

Luc Leblanc VE2DWE
AMSAT 33583
Skype VE2DWE
www.qsl.net/ve2dwe 
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