Yep, I've also used RG188 (.100" TFE), very inexpensive surplus and lots of
loss. RG142 and RG400 can handle a few kW and are quite lossy, makes the
perfect antenna matcher. Simply install 1000' of it between the amp and the
antenna, smooths the load right out.
TTFN
WB2WIK/6
"Each success only buys an admission ticket to a more difficult problem." --
Henry Kissinger
> -----Original Message-----
> From: Steve Thompson [SMTP:g8gsq@qsl.net]
> Sent: Tuesday, October 09, 2001 10:54 AM
> To: Steve Katz
> Cc: amps@contesting.com
> Subject: Re: [AMPS] Tuned Input, what me worry
>
>
> -----Original Message-----
> From: Steve Katz <stevek@jmr.com>
> To: 'Steve Thompson' <g8gsq@qsl.net>
> Cc: 'amps@contesting.com' <amps@contesting.com>
To: <amps@contesting.com>
> Date: 09 October 2001 15:35
> Subject: RE: [AMPS] Tuned Input, what me worry
>
>
> >Rather than build resistive pads, which involves calculating and
> soldering,
> >it's easier to just coil up a bunch of RG58/U and cut it to the right
> length
> >for the attenuation needed; then, open a beer and relax.
> Only downside is the frequency dependence (there's a joke there somewhere
> about frequency of opening beer bottles - sorry Joe). You could also go
> for
> something like RG316 - PTFE gives the temp/power rating, but you end up
> with
> a shorter length and smaller bundle.
>
> Steve
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