1-18
1
PANEL DESCRIPTION
• MICROPHONE CONNECTOR
(Transceiver view)
y GND (PTT ground)
t PTT
r Squelch switch
q Microphone input
w +8 V DC output
e Frequency up/down
i AF output
(varies with [AF])
u GND
(Microphone ground)
[MIC]
PIN NO.
FUNCTION DESCRIPTION
w
+8 V DC output Max. 10 mA
e
Frequency up Ground
Frequency down Ground through 470 ˘
r
Squelch open “LOW” level
Squelch close “HIGH” level
CAUTION: DO NOT short pin 2 to ground as this
can damage the internal 8 V regulator. DC voltage
is applied to pin 1 for microphone operation. Use
caution when using a non-Icom microphone.
Microphones (Continued) ■
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