Since there is no 160 meter band involved, this will be fairly easy.
First, you need to see where the resonance's fall on the HV RF choke.
The first one must be above 29 mhz, or parked somewhere between
bands at an equal distance. Turns can be removed from the choke to
move it to a safe spot. Then you have to decide how to retune the input
RC networks. If you want maximum smoke on 15 and 10 meters, just leave
everything as is, and take what you get on 17m and 12m. Or retune 15 and
10 meter networks for WARC, and take what you end up with on 15 and 10.
A no-compromise approach would involve adding networks for WARC, and
a switching scheme for them.
GL!
Phil, K5PC
Subject: [AMPS] sb200/201
>
> can anyone tell me what problems I might have in trying to use an sb200 on
> 17 and/or 12 mtrs. other than likely a very high input swr?? I don't have an
> amp of that type operational at the present time!!I'm remodeling one but
> that's a long term project, and at that I might want to include those bands.
> thanks.
> carl / kz5ca
>
>
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>
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