ICOM IC-M304 Marine Radio, VHF 25/1 watts output, water proof, gray casing Icom Part Number: ic-m304 (gray casing) Additional ICOM IC-M304 Marine Radio Information: - ICOM IC-M304 Marine Radio Features and Benefits - ICOM IC-M304 Marine Radio User Manual Supplied accessories with ICOM IC-M304 Marine Radio-
Hand microphone
DC power cable
Mounting bracket kit
ICOM IC-M304 Marine Radio Submersible compact body with large LCD and...
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powerful audiO
ICOM IC-M304 Marine Radio is Compact and submersible Equivalent to IPX7 (1m depth for 30 minutes, except cables).
ICOM IC-M304 Marine Radio has Large easy-to-see LCD Shows full size channel number with 4-step backlighting. ICOM IC-M304 Marine Radio contains Built-in DSC that meets RTCM SC-101 For distress calls, or for position request/position report. ICOM IC-M304 Marine Radio Features 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.
ICOM IC-M304 Marine Radio Weather channel with weather alert Listen for important weather broadcasts ICOM IC-M304 Marine Radio Features Dualwatch and Tri-watch functions Monitors Ch.16 and/or call channel, while using another channel.
ICOM IC-M304 Marine Radio is Also available in either black or gray
General ICOM IC-M304 Marine Radio Specifications
Frequency range
Tx
Rx
156.025–157.425 MHz
156.050–163.275 MHz
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 ;
6 1 ⁄ 32 ×2 5 ⁄ 8 ×5 1 ⁄ 4 in.
Weight (approx.)
825g; 1.8lb
NMEA formats
NMEA version 2.0 or 3.01
RMC, GGA, GNS, GLL
ICOM IC-M304 Marine Radio Transmitter
Output power
25W or 1W (at 13.8V DC)
Modulation system
Variable reactance frequency modulation
Max. freq. deviation
±5 kHz
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
ICOM IC-M304 Marine Radio Receiver
Intermediate freq.
1st 21.7 MHz, 2nd 450 kHz
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 specifications are subject to change without notice or obligation. ICOM IC-M304 Marine Radio Color versions
Black
Super white
Gray ICOM IC-M304 Marine Radio Dimensions
Rear Panel Connections
ICOM IC-M304 Marine Radio Features and BenefitsICOM IC-M304 Marine Radio User Manual