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Last modified 2024-12-17

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IC-M25D (M25D)

A picture of IC-M25D (M25D)

SPECIFICATIONS

GENERAL
Type:Marine VHF transceiver
Frequency range: TX: 156-157.5 MHz
RX: 156-163 MHz
Tuning steps:Channelized
Frequency stability:0.0005% @ -20 to +60°C (-4 to +140°F)
Mode:FM
Channels / memory management: 23 programmable + channel 16
1 NOAA weather channel
Programmable by diode matrix
Duplex shift / offset:According to programming
Power supply:13.6 VDC
Current drain / power consumption:RX: 300-800 mA
TX: Max 5 A
Antenna impedance / connector:50 ohm / SO-239
Dimensions (W*H*D):229*76*241 mm (9*3*9.5")
Weight:4.1 Kg (9 lb)
Other features:




RECEIVER SECTION
Receiver system: Double conversion superheterodyne
1st IF: 21.4 MHz
2nd IF: 455 KHz
Sensitivity:0.5 uV (20 dB quieting)
Squelch sensitivity:0.2 uV (Threshold)
2 uV (Tight)
Selectivity:
Image rejection:
AF output power / speaker:5 W at 10% distortion / 4 ohm
External speaker connector:




TRANSMITTER SECTION
RF output power: High: 25 W
Low: 1 W
Modulation system:
Max FM deviation (Factory set):±5 KHz
Spurious emissions:Better than -70 dB
Microphone impedance / connector:600 ohm / Fixed cord
Microphone input level:? mV




MISCELLANEOUS
Manufactured:Japan, 1978-1979 (Discontinued)
Additional info:
Related documents:User manual (13.3 MB)
Modifications and fixes:
Reviews:
Options / Accessories:
? Handset and cradle