Re: [Repeater-Builder] Coax Question

29 Nov 2004 01:22:38 -0000

OK Scott,
We have answered all you have asked. You do need to just read all the e-mails posted. Here goes again!
 
LMR and Beldon 9913 problem.
The foil and the braid moves and causes
noise. They move because they expand at a different rate because of what they are made of. You can hook them every foot and that will help. Next problem is in a cabinet you can not hook them down as well so you use 1/25 hard line as your jumpers. Next is loss. It just has so much more loss. And last is cost. The price of LMR-400 and 600 and Belden 9913 type of RG-8 type cables is less some times but you can buy 1/2" hard line for about the same price in many cases.
 
The bottom line is do it right. Use hard-line your users will thank you.
 
I hope this is of some help to you having all the info in the same place. All the above has be replayed to in e-mails over the last few days.
Good luck,
Very best of 73,
Russ, W3CH
Trustee, Metro-Comm, INC
W3PS/RPT. Repeater system.
 
----- Original Message -----
Sent: Saturday, November 27, 2004 8:44 PM
Subject: [Repeater-Builder] Coax Question

OK guys ---I hear you all saying that hard line is better but none of you have said what is the actual problem with 9913 flex or LMR-400. In other words---What is wrong with a quality foil under braid "100%"shielded foam cable and I'm assuming use between receiver and  duplexer, transmitter and duplexer and duplexer and antenna?
 
 And then the next question that follows is that inside a cabinet full of stuff where 1/2 inch hard line is just to stiff -----what do you suggest ---and in this case assume that we are talking about three or four repeaters----yes, receivers, transmitters, isolators and duplexers all in the same rack cabinet?
 
Scott
N6NXI


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