[TowerTalk] Coax Loss -- RG-Numbers Don't Tell us Much

[Mark Spencer]

For what it is worth a number of years ago I found that the measured loss of various forms of new Belden cable at 440 Mhz was noticeably less (maybe 20 % or so if memory serves ?) than the published spec.  

I carried out the tests a number of times using different equipment and got similar results each time.   The equimpent used to measure the power levels ranged from typical ham watt meters, bird 43 meters and spectrum analyzers and service monitors.
 
 

----- Original Message ----
From: Jim Brown <jim at audiosystemsgroup.com>
To: Tower and HF antenna construction topics. <towertalk at contesting.com>
Sent: Thu, February 4, 2010 6:30:07 PM
Subject: Re: [TowerTalk] Coax Loss -- RG-Numbers Don't Tell us Much

On Thu, 4 Feb 2010 15:56:51 -0800, Rick Karlquist wrote:

>Could the Belden catalog be wrong? :-)  In their case, seems to be 
pessimistic, at least on the low end. 



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