User Manual

DC POWER SUPPLY (p. 17)
[430(440)MHz ANT]
(p. 14)
[1200MHz ANT] (p. 14)
[144MHz ANT] (p. 14)
[KEY] jack (p. 38)
GROUND (p. 14)
Required for optional
UX-910 operation.
+_
13.8 V DC
More than 25 A
(dot)
(com)
(dash)
+
_
15
3
INSTALLATION AND CONNECTIONS
SM-20 DESKTOP
MICROPHONE (optional)
MICROPHONE CONNECTOR (Front panel view)
Input impedance:
8–16 Ω
Audio output power:
5 mW with 8 Ω load
Output power may differ
according to the headphone
HM-12 HAND
MICROPHONE
HEADPHONES
q MIC (Microphone input)
w +8V (Max. 8 V DC 10 mA)
e MIC U/D (Frequency up/down)
r SQL S (Squelch switch)
t PTT
y GND (PTT ground)
u GND (Microphone ground)
i AF OUT (varies with [AF])
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. Take care when using a non-Icom microphone.
q
w
e
r
t
y
u
i
■ Required connections
• Front panel
• Rear panel
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