110
Auto Active-Tuning Antenna System (ATAS-120A) Operation
FT-891 Advance Manual
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.
