[TowerTalk] RG-316 choke cables

[Bob Maser]

When you say that RG316 has Teflon center conductor, you must mean that the 
dielectric is made of Teflon, certainly not the center conductor, which is 
certainly made out of a copper alloy.
Bob W6TR
----- Original Message ----- 
From: "Bob Nielsen" <nielsen at oz.net>
To: "Bob Alexander" <realex at flash.net>
Cc: <towertalk at contesting.com>
Sent: Thursday, February 01, 2007 7:03 PM
Subject: Re: [TowerTalk] RG-316 choke cables


>
> On Feb 1, 2007, at 2:24 PM, Bob Alexander wrote:
>
>> RG316 is a .1" diameter cable with an unlikely 1250 Watt average power
>> rating at 10 MHz.
>> Has anyone used short lengths of this cable to make choke baluns
>> for low
>> band use?
>> My searches have yielded no info.
>
> The reason that RG-316 has a power rating that appears to be a bit
> high is that it has a teflon center conductor, which can take high
> temperatures.  It will probably get extremely hot at 1250 watts,
> which is probably not what you want for a choke balun, as the ferrite
> characteristics could be adversely affected.  It would probably work
> fine for power levels up to at most a few hundred watts.  For higher
> power, RG-142 or RG-400 (similar, but 142 has a solid copperweld
> center conductor while 400 has a stranded conductor) would be a
> better choice, while still physically small (0.195 O.D.)
>
> 73 - Bob, N7XY
>
>
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