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Icom Marine M304B

Frequency range

Tx

Rx


156.025–157.425MHz

156.050–163.275MHz

Usable channels USA, CAN, INT, WX channels
Type of emission

16K0G3E, 16K0G2B

Power supply 13.8V DC ±15%
Current drain (at 13.8V DC)
Tx
Rx
 
5.5A (at 25W output)
1.5A (at AF max.)
Operating temperature range

–20°C to +60°C;

–4°F to +140°F

Antenna impedance : 50Ω (SO-239)
Dimensions (W×H×D,
projections not included)

153×67×133mm ;

6132×258×514 in.

Weight (approx.) 825g; 1.8lb
NMEA formats

NMEA version 2.0 or 3.01

RMC, GGA, GNS, GLL

Transmitter
Output power 25W or 1W (at 13.8V DC)
Modulation system Variable reactance frequency modulation
Max. freq. deviation ±5kHz
Frequency error ±10ppm
Spurious emissions Less than –70dBc (at 25W)
Adj. channel power More than 70dB
Audio harmonic distortion Less than 10% (at 60% dev.)
Residual modulation More than 40dB
Receiver
Intermediate freq. 1st 21.7MHz, 2nd 450kHz
Sensitivity 0.22μV typical at 12dB SINAD
Squelch sensitivity Less than 0.22μV
Adj. Ch. selectivity More than 70dB
Spurious response More than 70dB
Intermodulation More than 70dB
Hum and noise More than 40dB
Audio output power 4.5W typical at 10% distortion with a 4Ω load

Measurements made in accordance with TIA/EIA 603. All stated specifi cations are subject to change without notice or obligation.

Color versions

  • Black
  • Super white
  • Gray

Supplied accessories

  • Hand microphone
  • DC power cable
  • Mounting bracket kit

Dimensions

Dimensions

Rear Panel Connections

Rear Panel Connections

FORCE5AUDIO logo is a registered trademark of Icom Inc. (Japan) in the United States.



 

Icom Marine M304W

Compact and submersible

Equivalent to IPX7 (1m depth for 30 minutes, except cables).

Large easy-to-see LCD

Shows full size channel number with 4-step backlighting.

Built-in DSC that meets RTCM SC-101

For distress calls, or for position request/position report.

New Force5Audio™ speaker

Delivers impressive audio output with powerful bass.

Favorite channel function

Offers quick channel selection from the microphone up/down buttons.

AquaQuake draining function

The vibrating “buzz” sound clears water away from the speaker grill.

Weather channel with weather alert

Listen for important weather broadcasts

Dualwatch and Tri-watch functions

Monitors Ch.16 and/or call channel, while using another channel.

 



 


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