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Mic Up Push and hold to open the noise/tone squelch.
Mic Down Same as [W/N] key. (p. 22)
Mic A Push to start/stop scan function. (P. 22)
Mic B Push several times to select output power; Low1,
Low2 and High. (p. 13)
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PANEL DESCRIPTION
q CHANNEL SELECTOR/SW [CH] (p. 14)
Turn to select CH1 to CH16.
w VOLUME CONTROL [OFF/VOL]
Turns power ON and adjusts the audio level.
e MONITOR (Audi) key [MONI] (p. 21)
• Push and hold to open the noise/tone squelch.
• Push to turn the noise/tone squelch ON.
r PTT SWITCH [PTT]
Push and hold to transmit; release to receive.
t WIDE/NARROW KEY [W/N] (p. 22)
• Push to select Wide FM mode.
• Push and hold to select Narrow FM mode.
y ANTENNA CONNECTOR
Connects the supplied antenna.
u TX/RX INDICATOR LED (p. 3)
• Lights red while transmitting.
• Lights green while receiving a signal, or squelch is open.
i [SP]/[MIC] JACK
Connects optional speaker-microphone.
DD
HM-75A Speaker Microphone key reference (OPTION)*
*These functions are available when the optional Speaker/Mic. is con-
nected.