[Elecraft] K3 - operation with the KPA500 and KAT500

[George Danner]

Bill,
Mine acts the same - until it transmits RF once!
That first transmit can (will) fault both the KPA500 & KAT500.
I hadn't noticed that before because my 80m antenna is the only one with a 
significance difference in VSWR between the bottom & top of the band & I'm 
not on 80m very often but do operate at the bottom or top if I'm on 3.060 
MHz & 3.975 MHz.
Thanks
73
George
AI4VZ

-----Original Message----- 
From: Bill W2BLC
Sent: Tuesday, September 24, 2013 10:11 AM
To: elecraft at mailman.qth.net
Subject: Re: [Elecraft] K3 - operation with the KPA500 and KAT500

The reason I asked the original question is my experience with the
KPA500 and KAT500:

KPA500 in the OPER mode.
KAT500 in AUTO (solid on).
K3 set to 25 Watts when running with the amp.
Everything has been well checked over for errors in installation and setup.

When I QSY between 3970 from 3755 and start talking on LSB - the KPA500
and the KAT500 both go wild. The tuner does not appear to remember that
both frequencies have been "memorized" or is very slow (several seconds)
to make the determination. The tuner will click (relay noise) and the
amp will show RED FAULT (REFL HI) and go to STBY.

Using the above frequencies, when I press the XMIT/TUNE button I get an
immediate RED FAULT (REFL HI) however, the unit does not go into STDY.
If the XMIT is kept on, the RED FAULT will switch off after about 3 or 4
seconds and normal amp output power is noted. I can then talk and all is
fine.

If this is how the combo is supposed to act, so be it - however, it
isn't what I expected. When I purchased the KAT500 and KPA 500, I was
under the impression it would follow me around the bands seamlessly,
with only the VFO touched for QSY

The amp and tuner were factory built - so no chance of errors there.
What am I missing? Or, is this how it is designed and is actually
working "properly?"

Thanks,

Bill W2BLC
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