Elecraft KAT500 Serial Command Reference - Manual (Page 12)

20 K15 2100
10 K14 1000
08 K13 480
04 K12 230
02 K11 110
01 K10 50
It may take a few tens of milliseconds after issuing Lxx; SET before the relays are changed, and they may
not all be changed at the same time.
SET may be ignored if the current transmit power exceeds the AKIP power threshold.
Inductor relays are released whenever the bypass relay is in bypass (BYPB), and SET has no effect.
MD (Mode, GET and SET)
GET format: MD;
SET/RESPONSE format: MDB; or MDM; or MDA;
MDB; is “Bypass” mode. The bypass relay is released to its Bypassed setting and the KAT500 does not
attempt to tune.
MDM; is “Manual” mode. The KAT500 recalls memorized tuner settings from prior tune efforts on
frequency and antenna change, frequency change, and when the TUNE pushbutton is pressed. A TUNE
button press is also used to search for a match setting. See also the MTM command.
MDA; is “Automatic” mode. The KAT500 recalls memorized tuner settings on frequency change, and if
the SWR exceeds a threshold value (typically 1.8:1) that can be set with the ST command. See also the
MTA command.
SET may be ignored while transmitting.
MT (Memory Recall Tune, SET only)
SET format: MT fffff; where fffff is a frequency, in kHz.
MT performs a “memory recall tune” by changing to the memorized tuner setting for the current
antenna.
If fffff is zero or missing, the last Transmit frequency is used. If the ATU detects a current transmit
frequency, the measured frequency is used instead of fffff.