Gore makes a series of foamed PTFE that is very flexible. Not cheap of
course but a friend is the NE Sales Manager (-; I use it around the rotors
for 222 (1500W) to 1296. On 2M Im using CATV RG-11 foam quad shield at
1500W. On the higher bands I convert to 50 Ohms before the loop.
Carl
KM1H
----- Original Message -----
From: "Larry Benko" <xxw0qe@comcast.net>
To: "amps" <amps@contesting.com>
Sent: Saturday, February 06, 2010 11:38 AM
Subject: Re: [Amps] QRO Questions
> You are referring to RG-142 which can carry over 3KW on 10m. It is
> teflon and lower loss than RG-58 but it does NOT have less loss than
> RG-214. It gets its power handling capability by being able to operate
> at high temperature. Also it is not very flexible since the center
> conductor is a single silver plated copperweld wire. See
> http://www.timesmicrowave.com/cgi-bin/calculate.pl for a nice coaxial
> cable loss/power calculator.
>
> Larry, W0QE
>
> Ron Youvan wrote:
>>> There was a PTFE coax about the size of RG213 that I saw in Germany (at
>>> Friedrichshafen maybe?) some time ago, but I can't remember what it's
>>> called and have never seen it since. Anyone know of this stuff?
>>>
>>
>> There is a PTFE coax about the size of RG-58 with less loss and more
>> power handling
>> capacity than RG214 so what you mention is a lot more than probable. (as
>> is 1/4"
>> superflex) I like the Times LMR products, while not as efficient as
>> above, many are "direct
>> burnable." (polyethylene jacket)
>>
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