15
SSM-75E Microphone Switches
MUTE
P1 P2 P3 P4
PTT Switch
Switches Transmit/Receive.
Press to transmit and release to receive.
DWN / UP Key
The [UP]/[DWN] keys may also be used to manual-
ly scan the frequency upward or downward.
● The amount of frequency change depends on the
operation mode (default setting: see table below).
Operating Mode UP DWN
LSB / USB / CW-L / CW-U
DATA-L / DATA-U
RTTY-L / RTTY-U / PSK
+10
Hz
-10Hz
AM / AM-N / FM / FM-N
DATA-FM / D-FM-N
+10kHz -10kHz
● The frequency change can be changed in the
setting menu.
Operating Mode Memu Item Step
LSB / USB
CW-L / CW-U
SSB/CW DIAL STEP
(page 105)
5/10 (Hz)
DATA-L / DATA-U
RTTY-L / RTTY-U
PSK
RTTY/PSK DIAL STEP
(page 105)
AM / AM-N
AM CH STEP
(page 105)
2.5/5/9/10/
12.5/25
(kHz)
FM / FM-N
DATA-FM
D-FM-N
FM CH STEP
(page 105)
5/6.25/10/
12.5/20/25
(kHz)
MUTE Key
While pressing the MUTE key, the receiver audio
from the speaker will be muted.
Microphone
Speak into the microphone in a normal tone of
voice with the microphone 5 cm away from the
mouth.
P1 key
This key toggles the ON/OFF lock for the MAIN Dial
knob. When “Lock” is ON, the MAIN Dial knob can
still be turned, but the frequency will not change,
and “LOCK” appears in the frequency display.
It is the same function as the [LOCK] key on the
front panel of the transceiver.
P2 key
The current operation status can be stored in a
dedicated memory channel (QMB: Quick Memory
Bank) with one touch.
It is the same function as the [QMB] key on the
front panel of the transceiver.
P3 key
Pressing this key momentarily, exchanges the
VFO-A and VFO-B frequency data.
It is the same function as the [A/B] key on the front
panel of the transceiver.
P4 key
This key toggles frequency control between VFO
and the memory system.
It is the same function as the [V/M] key on the front
panel of the transceiver.
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