IC-M1 Specifications
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H.M.S. Communications, Inc.


Waterproof protection you can count on!

Waterproof construction

The IC-M1 is waterproof! Designed for reliable operation under severe marine conditions. Torrential downpours, heavy seas - no problem for this transceiver.


A larger, easy-to-read display shows operating status at a glance. All switches are intuitively positioned and well spaced, allowing easy operation with only one hand - even while wearing gloves!

Ultra high speed scan functions

High-speed scanning of 28 channels/sec. provides quick and effective signal searching. In addition, the IC-M1 has an automatic scan start feature: after standing by for 30 sec., scan starts automatically.

The IC-M1 comes with:

  • Battery pack (BP-185)
  • Battery charger (AD-58)
  • AC adapter (BC-122A)
  • Flexible antenna (FA-S57V)
  • Handstrap
  • Belt clip
  • Operating manual

Other features

  • Automatic squelch adjusts levels slightly from pre-set levels
  • Size and weight optimized for handheld operation
    2-1/16(W) x 5-3/32(H) x 1-3/16(D) in; 9.9 oz.
  • 5 watts of output power an 2 selectable low powers
  • Selectable dual watch and tri-watch
  • Auto weather alert function during standby or while scanning (U.S.A. version only)
  • Instant access to channel 16 and the call channel (programmable; channel 9 is programmed in the U.S.A. version)
  • Optional voice scrambling capability
  • Economical power saver function
  • Low battery indicator
  • Auto backlighting of front panel keys
  • Easy to program "Tag" scan system allows users to include channels in the scan list


  • U.S.A.:
    • Usable channels: U.S.A., Canadian, International, Weather
    • Output power: 5 W
    • Supplied battery pack: BP-185
    • Scan functions: Normal and priority
    • Voice scrambler: Optional


  • Usable channels: U.S.A., Canadian, International, Weather
  • Mode: FM (16K0G3E)
  • Channel spacing: 25 kHz
  • Current drain (with BP-185): 1.8 A max. (Tx at 5 W output), 0.8 A (Tx at 1 W output), 300 mA (Rx at max. audio), 13 mA (typ.; power saved)
  • Acceptable battery packs: BP-185 or BP-186
  • Usable temperature range: -20C to +60C; -4F to +140F
  • Frequency stability (-20C to +60C): +/-0.001%
  • Dimension (projections not included): 52.5(W) x 129(H) x 30(D) mm; 2-1/16(W) x 5-3/32(H) x 1-3/16(D) in
  • Weight (w/BP-185): 280 g; 9.9 oz.
  • Antenna impedance: 50 ohms (Unbalanced)


  • Output power (at 8.4 V): 5 W, 1 W and 0.15 W (refer to version list)
  • Hum and noise: Better than 40 dB down
  • Spurious emissions: Less than -65 dB
  • Maximum frequency deviation: +/-5.0 kHz


  • Sensitivity: Less than 0.35 V (for 12 dB SINAD)
  • Squelch sensitivity (adjustable): Up to 23 dB SINAD
  • Intermodulation rejection: More than 70 dB
  • Adjacent channel selectivity: More than 70 dB
  • Spurious response rejection: More than 70 dB
  • Audio output power: More than 400 mW at 5% distortion with an 8 ohm load
  • Specifications for the IC-M1 are measured in accordance with EIA-152C & EIA-204D(E) and ETS300 162, respectively.


  • BP-185 BATTERY PACK: Voltage capacity, 8.4 V, 400 mAh; 5.0 W output power; height 129 mm, 5-3/32 in; Approx. operating time: high, 4 h; 1 W, 8 hr.; 150 mW, 13 hr.
  • BP-186 BATTERY PACK: Voltage capacity, 7.2 V, 1050 mAh; 4.5 W output power; height 159 mm, 6-1/4 in; Approx. operating time: high, 10.5 h; 1 W, 21 hr.; 150 mW, 34 hr. Operating times are measured under the following conditions: Tx: Rx: Standby (power saved) = 5:5:90
  • AD-58 BATTERY CHARGER+BC-122A AC ADAPTER: Wall mount. For regular charging. Charging time: 15 hours.
  • BC-119 DESTOP CHARGER+AD-69 DESKTOP CHARGER ADAPTER: For rapid charging of battery packs. Charging time: 1 to 1.5 hours. An AC adapter is supplied with the charger.
  • CP-17L CIGARETTE LIGHTER CABLE or OPC-515L DC POWER CABLE: For use with a battery charger (or desktop charger) instead of an AC adapter.
  • UT-98 VOICE SCRAMBLER UNIT: Enables private communications by scrambling your voice signals. Not available in some countries.

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