Manual Tuning - Yaesu FT-891 Advance Manual

Auto Active-Tuning Antenna System (ATAS-120A) Operation

Manual Tuning

Carry out the tuning of the ATAS-120A manually.
Manual tuning with the MH-31A8J
1. Press and hold the PTT switch on the microphone to transmit.
2. Press (press and hold) the [ UP ] or [ DWN ] key on the microphone to adjust the anten-
na until the meter indicates the minimum SWR.
Manual tuning from the FT-891 Control Panel
1. Press the [ F ] key repeatedly to find the
"ATAS SETTING" list screen.
NOTE: This screen may be enabled/
disabled via Menu Mode "05-12
[ ATAS SETTING ] ".
2. Press and hold the PTT switch on the micro-
phone to transmit.
3. Rotate the MULTI function knob to select
[ p ] or [ q ] , and then press (press and hold)
the MULTI function knob to adjust the an-
tenna until the meter indicates the minimum
SWR.
110 FT-891 Advance Manual