IC-M59 Specifications
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H.M.S. Communications, Inc.M-59




  • Frequency Coverage: Transmit: 156.025 -157.425 MHz; Receive: 156.025 - 163.275 MHz
  • Usable channels: All U.S.A., International and Cnandian channels; plus 10 weather channels
  • Mode: FM(16K0G3E); DSC (16K0G2B; with optional UX-120))
  • Power Supply Requirement: 13.8 V DC +/-15% (negative ground)
  • Current Drain (at 13.8 V DC):
    Transmit: 6.0 (high); 1.5 A (low)
    Receive: 1.2 A (max. audio); 350 mA (standby)
  • Usable Temperature Range: -20C~ to +60C (-4F to +140F)
  • Antenna connector: 50 ohms (SO-239)
  • Dimensions: 166(W) x 70(H) x 175(D) mm; 6.52(W) x 2.75(H) x 6.84(D) in (projections not included)
  • Weight: 1.0 kg; 2.2 lb


  • Output Power (at 13.8 V): 25 W (high); 1 W (low)
  • Modulation System: Variable reactance phase modulation
  • Spurious Emissions: Less than -70 dB
  • Noise and hum: 40 dB
  • Microphone Impedance: 600 ohms


  • Receiver System: Double-conversion superheterodyne
  • Intermediate Frequencies: 1st: 21.8 MHz; 2nd: 455 kHz
  • Sensitivity: 0.22V for 12 dB SINAD (typical)
  • Squelch sensitivity (at threshold): 0.18 V
  • Adjacent channel selectivity: 70 dB
  • Spurious Response Rejection Ratio: 70 dB
  • Intermodulation rejection ratio: 70 dB
  • Audio Output Power: More than 3.5 W with a 4 ohms load
  • Audio Output Impedance: 4 ohms


Some versions cannot use all the options listed here since type approval for the IC-M59 varies between countries. Ask your dealer which options are available.
  • SP-5 EXTERNAL SPEAKER: A large, external speaker for superior audio output.
  • SP-10 EXTERNAL SPEAKER: A compact, external speaker. Features easy installation.
  • MB-28 FLUSH MOUNT: For mounting the IC-M58 to a panel. Available in white or black.
  • PS-66 DC-DC CONVERTER: Enables use of a 24 V boat battery. Input voltage: 19 to 32 V DC; Output voltage: 13.6 V DC
  • UT-79 VOICE SCRAMBLER UNIT: Provides 128 analog voice scramble codes for private communications.
  • UX-120 DSC UNIT: Provides the IC-M59 with DSC capabilities which comply with U.S. Coast Guard proposal SC-101 for marine digital communications.
  • OPC-457 NMEA CABLE: For connecting a GPS receiver to send positioning data with DSC calls via the UX-120.

The ICOM logo is a registered trademark of ICOM, Inc. All ICOM radios significantly exceed FCC regulations limiting spurious emissions. All stated specifications are subject to change without notice or obligation.

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Copyright 1999 Donegal Holdings Ltd., Inc.
Last modified: May 15, 2006