[Elecraft] KXPA100 connection to PC via RS232

[Christian Gondard]

Hello

I have my new KXPA100 connected to the KX3 as described in the manual , 
via the adapter cable (page 13 of the manual) ; all is working fine and 
the KX3 communicates with the KXPA100. I have made already some qso's at 
100 watts.

but ..

when I was using the KX3 barefoot, it was connected to my PC via the 
KXUSB cable at ACC1, which provides an RS232 to USB  conversion ; and 
logger32, which is my logbook software, was reading the KX3 frequency on 
the simulated COM6 port.
I was expecting that the same will occur when I use the same hardware 
connected this time to the RS232 exit on the KXPA100 ; but now logger32 
doesn't receive the frequency info from the KXPA100 when the PA mode is 
selected. When the PA mode is OFF , logger32 reads the correct frequency

If I come back to the KX3 barefoot configuration, logger32 receives the 
frequency data as before.

What did I missed ? I suppose something is not behaving as I was 
expecting on the RS232 exit from the KXPA100 when he is ON ?

Thanks for any help !

Best season's greetings to everybody on the list

73 de Chris / F6FTB