[Elecraft] KAT500 Anomalies

[Andy Durbin]

"Once the tuner knows the proper L/C combination for each frequency bin, it will switch to those settings in MAN mode.  It will NOT try to autotune. If you switch to a different antenna on that particular antenna port, you will have to 'teach' the tuner again, which means going back into AUTO mode and transmitting in each bin's frequency so it learns what the L/C combinations are for each bin.  Once that has been done, switch to MAN mode and operate."

Your explanation seems to assume there is only one solution per bin.  That's not accurate.  There are up to 6 solutions per bin and each of those 6 solutions includes the antenna port descriptor.  There would be no need to autotune on selecting a different antenna if a solution for that antenna port was stored in the bin and gave a satisfactory match.

73,
Andy, k3wyc