[Elecraft] KPA1500 ATU - ability to handle more than two antennas

K9MA k9ma at sdellington.us
Thu Jan 25 22:58:47 EST 2018


I'm concerned about the same issue:  Multiple antennas on one band. I 
have an automated antenna selection system.  In addition to following 
the band data from the transceiver, there are switches to select 
antennas.  I frequently have to very quickly switch antennas, so it must 
involve only a single switch.  Using a mouse with the computer is 
nowhere near fast enough and I really don't want to make it dependent on 
the computer, anyhway.  However, my antennas have different impedances, 
so require different ATU settings.  So, how can I tie the KPA1500 ATU 
into my antenna control switch so it automatically switches settings?  
All the antenna switching is external to the amp, so only a single amp 
output is used.  The ideal would be a control line to the amp, 
controlled by the same switch that selects antennas, which would select 
ATU settings.  I really don't want to make it dependent on the 
computer.  I expect others have the same issue.  Can the KPA1500 be made 
to do something like this?

73,
Scott K9MA

-- 
Scott  K9MA

k9ma at sdellington.us



More information about the Elecraft mailing list