[Elecraft] amp and coupler questions

Lyle Johnson [email protected]
Fri May 3 00:17:04 2002


Hello Peter!

I wouldn't depend on the AT-11, or any antenna matching system, to provide
harmonic suppression for your system.  The output from the transmitter
should be clean, properly filtered, etc.  The matching system should do just
that -- match the transmitter to the load -- and nothing else.

So figure several filters and some switching arrangement on the output of
your AN-762 amplifier.  AT least you can rest assured that the filters will
be properly terminated into 50 ohms!

72 (or 73 if you are QRO),

Lyle KK7P

> If anyone has any comments on the use of the Motorola AN-762 amp with
> the K2 while using an LDG AT-11MP as the antenna coupler and low pass
> filter, I'd certainly appreciate any...