K3 - alarm on amp with RTTY

[N2TK]

I have a K3 driving an Acom 2000A. Using AXETTY (MMTTY) on RTTY.

If I am using SSB or CW I have no amp alarm issues. I use QSK all the time
with QRQ ON and have no alarm issues ever.

However when on RTTY (FSK) about once in every 8 transmits I get an alarm on
my amp at the end of the transmission - "Ant Relay Closed, It Should Be
Open". This is interesting because the alarm happens only when the amp and
K3 are switching from transmit to receive.

I am not sure if I should be focusing on the software. But figured I would
see if there is something in the K3 firmware that adjusts the time from
transmit to receive.  Maybe I am still putting out RF when the amp is trying
to switch to receive? Maybe something in AXETTY/MMTTY that can help this?

 

When I get some time I plan on replacing the input and output relays in the
Acom, just in case. They are the original relays in this 12 year old amp. It
is such a pain to haul down the amp. I have a shelf  hung from the basement
ceiling which holds the amp right below my shack. I only have the RCU in the
shack.  

 

Now where is that KPA1500?

 

Thanks for any advice.

 

73,

N2TK, Tony

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