Icom IC-M304 VHF MARINE TRANSCEIVER
Submersible compact body with large LCD and powerful audio.

Features:

• 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 - 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

Supplied accessories:
• Hand microphone
• DC power cable
• Mounting bracket kit

Specifications:

General:
• Frequency range :
Tx 156.025–157.425MHz
Rx 156.050–163.275MHz
• Current drain(at 13.8V DC):
Tx 5.5A (at 25W output)
Rx 1.5A (at AF max.)
• Usable channels : USA, CAN, INT, WX channels
• Type of emission : 16K0G3E, 16K0G2B
• Power supply : 13.8V DC ±15%
• 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 x 67 x 133mm ; 6-1⁄32 x 2-5⁄8 x 5-1⁄4 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