[Elecraft] Share a port for KPA500

[Steve Forst]

I have a TS-890S that has a KPA500 connected to the  radio's serial 
port.   The amp follows the radio, no problem.  Very slick.

I also have a TS-590SG that I can use as a second receiver  for the 
TS-890.   For this to work right, the sub RX needs to connect to the 890 
via the serial port with a null modem cable and set to a 115,200 baud rate.


Is there a simple way to get the band data to the amp while the 2 radios 
are connected to  each other as described above?

I guess I can use the amp's RF sensing, but  have always loved having 
the amp follow the radio.

73, Steve KW3A