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Last modified 2024-12-20

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Icom IC-M304

A picture of Icom IC-M304

SPECIFICATIONS

GENERAL
Type:Marine VHF transceiver
Frequency range: TX: 156.025-157.425 MHz
RX: 156.050-163.275 MHz
Tuning steps:Channelized
Frequency stability:±10 ppm @ -20 to +60°C (-4 to +140°F)
Mode:FM
Channels / memory management: 59 US, 63 Canadian and 59 international channels
1 call
10 NOAA weather channels
Alpha tags (Ten characters)
Duplex shift / offset:Automatic according to bandplan
Power supply:13.8 VDC ±15%
Current drain / power consumption:RX: Max 1.5 A
TX: Max 5.5 A
Antenna impedance / connector:50 ohm / SO-239
Dimensions (W*H*D):153*67*133 mm (6.02*2.64*5.2")
Weight:825 g (1.8 lb)
Other features: Channel 16 button. DSC. AquaQuake water draining. Dual/triwatch.
Scanning. Weather alert.




RECEIVER SECTION
Receiver system: Double conversion superheterodyne
1st IF: ? MHz
2nd IF: ? KHz
Sensitivity:0.22 uV (12 dB SINAD)
Squelch sensitivity:Less than 0.22 uV (Threshold)
Selectivity:70 dB (Adjacent channel)
Image rejection:
AF output power / speaker:4.5 W at 10% distortion / 4 ohm
External speaker connector:




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




MISCELLANEOUS
Manufactured:Japan, 2006-20xx (Discontinued)
Additional info:
Related documents:User manual (1.3 MB)
Modifications and fixes:
Reviews:
Options / Accessories:
MB-69
MB-92
Flush mount kit
Dust cover