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[AMPS] RE: Power handling of Coax

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Subject: [AMPS] RE: Power handling of Coax
From: W0YR@aol.com (W0YR@aol.com)
Date: Thu, 4 May 2000 12:42:38 EDT
Bill Orr's handbook, 16th edition, p. 418, saith:

RG-8/U will handle 2kw at 30 mHz if swr is low

RG-11 will handle 1.4 kw """"""

RG-17U will handle 7.8 kw """""

RG 58/U will handle 430 w  """"

The 22nd edition, p. 25.15, saith:

RG-8A-/U 1720 w at 30 mhZ
RG 213/U 1720 w

RG 58  580w
RG 11A/U    1,400 w.

p. 25.17 saith:

CABLE POWER RATING:  The factor controlling the  power capability of a 
coalial line is heat, most of which is generated in the center conductor.  
The inner dielectric's ability to withstand the heat and its effectivenuess 
in transferring heat to the outer shield and jacket are the limiting agents 
in the heating process.    For vhf/uhf use, coax with a teflon inner 
dielectric are used, which permits a center conductor operating temperate as 
high as  250 C.  

Mike
W0YR

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