[1000mp] MP Relay/Receive Problem

[Pete Smith]

At 04:54 PM 5/27/02 -0700, you wrote:
>Smitty, W6CS wrote:
>
>"This suggests that with an MP, you don't need or use the automatic
>antenna tuner when driving an amplifier. Right?"
>==========
>Right, as long as the amplifier's input circuit is a close match to 50
>ohms.  Alpha amplifiers are no problem in this respect.  I use an old
>Alpha 76CA and never have to use my MP's auto tuner when driving it (nor
>do I use it when running barefoot because all of my antennas are matched
>to 50 ohms).
>

On the other hand, I find that my Mark V is much more sensitive to SWR than 
my old TS-930, and begins to fold back its output on 40m when driving my 
SB-220, which has a fairly high input SWR on that band.  I'm aware that the 
input network Q is not ideal on these amps, and have revising it on my 
to-do list, but for now I'm using the tuner.


73, Pete N4ZR

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