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Last modified 2024-05-23

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Icom HM-56

A picture of Icom HM-56


Type:Electret hand microphone
Frequency response:? Hz (-6 dB)
Sensitivity:? dB (? Hz, ? cm)
Output level:? mV
Output impedance / connector:? ohm / 8-pin (Female locking ring plug)
Power supply:8 VDC, supplied by radio
3 V lithium battery for memory backup
Current drain:? mA
Dimensions (W*H*D):53*75*26 mm (2.09*2.95*1.02")
Weight:166 g (5.85 oz), with cord and connector
Manufactured:Japan, 199x-199x (Discontinued)
Other: Up/down buttons.
DTMF pad with 14 memories.
1750 Hz tone call.
Related documents: User manual (306 KB)
Schematic diagram (198 KB)
Modifications and fixes:Capacitor replacement (84 KB)
Applicable radios: