[Elecraft] Cable X-Perts RG-8 vs Davis Bury Flex

Jack Smith Jack.Smith at cliftonlaboratories.com
Wed Mar 21 17:14:17 EST 2007


J S wrote:
> I've read that Davis Bury Flex is very good (low loss) coax. I have
> Cable X-Perts RG-8 (50 feet of it) as my feedline right now.  Is it
> worth my time and $ making a change to Davis Bury Flex or something
> similar?
>
Jeff:

You might ask yourself how much the loss differential would be between 
the present cable and the proposed cable, for a length of 50 feet. You 
can then decide whether the "dB per dollar" result makes sense, or not.

Evaluate the loss of the two cables at the highest frequency at which 
you normally operate. My suspicion is that you will find the difference 
is a fraction of a dB. Considering that even measuring power to an 
accuracy of +/- 1 dB can be difficult without a decent wattmeter, you 
might use that in evaluating the dB per dollar computation.

This assumes, of course, that your present cable is not defective.

Jack K8ZOA
www.cliftonlaboratories.com



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