Doug,

 If you already have remote antenna switching, I would use the K3  bcd data
to do the antenna switching prior to the amplifier rf sensing the band. 
this would prevent transmitting into a wrong antenna...unless, of course,
you plan on using the built in antenna switch of the SPE then I would rely
on the K3 band data provided to the amp rather than rf sensing.

73 and good luck
Larry K1UO




    I am considering the Expert amplifier because of instant turnon, smaller
size and reduced weight.   Does the Expert amplifier require a tie in to the
transceiver other than RF input and key out to determine which frequency to
tune to?   The ACOM 2000A does this automatically sensing the frequency from
the RF Input and there is not need for an interveing PC.   Is it the case
that the Expert amplifier needs a separate input defining the operating
frequency and band?

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