@ VOL control
Adjusts the level of receive audio from the speaker
{page 14}.
® MN button
Selects the Memory Name mode {page 30}.
@® POWER switch
Switches the transceiver ON or OFF {page 14}.
@ SQL (Squelch) control
Adjusts the squelch threshold level {page 14}. This allows
you to mute speaker output while no stations are being
received.
Microphone connector
Insert the 8-pin modular connector plug until the locking tab
"clicks".
8
UP
DBC 8 V, 200 mA max.
GND
STBY (PTT)
GND (MIC)
MIC
RD : Open squelch audio
DWN
(100 mV/10 kQ)
@ MHz button
Selects the MHz mode. This mode allows you to use the
Tuning contro! or the microphone [UP][DWN] buttons to
change the transceiver frequency in 1 MHz steps.
Also provides:
*
AM/FM mode select (some TM-261A versions only)
{page 48}.
@ F (Function) button
Allows you to select the different functions that are
available on multifunction buttons.
@ TONE button
Switches the Tone function ON or OFF {page 22}. When
the optional TSU-8 is installed, also switches the CTCSS
function ON or OFF. Also provides:
¢
Automatic Tone frequency ID activate/deactivate {page 36}.
@ REV (Reverse) button
Switches the transmit frequency and receive frequency
when operating with a transmit offset or a split memory
channel {page 23}.