This thread on high power coax has me interested.
I gamma match the boom of my HF Yagi's for 40M using small lengths
of coax as fixed capacitors.
In the past, I've used RG-17 because of it's high breaking voltage, but my
supply of RG-17 is now gone.
What type of modern coax is available with high voltage ratings?
73,
Larry K4AB
On Sat, Feb 6, 2010 at 7:01 PM, Carl <km1h@jeremy.mv.com> wrote:
>
> ----- Original Message -----
> From: "Roger" <sub1@rogerhalstead.com>
> To: <ka4inm@tampabay.rr.com>
> Cc: "amps" <amps@contesting.com>
> Sent: Saturday, February 06, 2010 2:02 PM
> Subject: Re: [Amps] QRO Questions
>
>
> >
> >
> > 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)
> >>
> > Of course PTFE gives off toxic fumes if there an arc, or if it is over
> > heated.
> >
> >
> > 73
> >
> > Roger (K8RI)
>
>
> I guess it may hurt a few birdies on the tower.
>
> Carl
>
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