Frequency Range   Marine Tx   Marine Rx   LMR Tx/Rx   156.025–157.425MHz 156.050–163.275MHz 146.000–174.000MHz Usable channels* All U.S.A., International and Canadian channels; 22 LMR channels plus 10 weather channels (*Varies according to version) Channel spacing   Marine   LMR   25kHz 25/12kHz PLL channel step (LMR) 5/6.25/7.5kHz Current drain (at 7.2V DC)   Tx (at 5W output)   Rx (at AF max.)   1.6A 200mA Operating temperature range   Marine   LMR   -20°C to +60°C; -4°F to +140°F -30°C to +60°C; -22°F to +140°F Antenna Impedance 50Ω (SMA) Dimensions (W×H×D) (Projections not included) 62 × 97 × 39 mm; 27/16 × 313/16 (H) × 117/32 in Weight (approx.; with BP-227) 280g; 9.9oz Transmitter Output power (Hi/Mid/Low) 5/3/1W Max. frequency deviation   Marine   LMR (wide/narrow)   ± 5.0kHz ± 5.0/2.5kHz Audio harmonic distortion Less than 10% (at 60% mod.) Spurious emissions -70dBc typical Adjacent channel power   Marine   LMR (wide/narrow)   70dB 70/60dB Hum and noise ratio   Marine   LMR (wide/narrow)   40dB 40/34dB Receiver Sensitivity (at 12dB SINAD) 0.25µV typical Squelch sensitivity 0.35µV typ. (at threshold) Adjacent Channel Selectivity   Marine   LMR   70dB typical 70/60dB typical Spurious response 70dB typical Intermodulation Rejection 70dB typical Hum and noise ratio   Marine   LMR   40dB typical 40/34dB typical Audio output power 0.35W typical (at 10% distortion with an 8Ω load) Applicable U.S. Military Standards Standard MIL 810 C MIL 810 D MIL 810 E MIL 810 F Method Proc Method Proc Method Proc Method Proc Low Pressure 500.1 I 500.2 I, II 500.3 I, II 500.4 I, II High Temp. 501.1 I 501.2 I, II 501.3 I, II 501.4 I, II Low Temp. 502.1 I 502.2 I, II 502.3 I, II 502.4 I, II Temp. Shock 503.1 I 503.2 I 503.3 I 503.4 I Solar Radiation 505.1 I 505.2 I 505.3 I 505.4 I Rain 506.1 I, II 506.2 I, II 506.3 I, II 506.4 I, II Humidity 507.1 I, II 507.2 II, III 507.3 II, III 507.4 – Salt Fog 509.1 I 509.2 I 509.3 I 509.4 – Dust 510.1 I 510.2 I 510.3 I 510.4 I Vibration 514.2 VIII, X 514.3 I 514.4 I 514.5 I Shock 516.2 I, II, V 516.3 I, IV 516.4 I, IV 516.5 I, IV Measurement made in accordance with TIA/EIA-603. All stated specifications are subject to change without notice or obligation. Supplied Accessories Battery Pack Battery Charger AC Adapter* Swivel Belt Clip Antenna, FA-S59V Hand Strap *Varies according to version

Tough construction, superior waterproofing The IC-M88 IS is built tough to withstand hazardous and inhospitable environments at sea and on land. Even if the IC-M88 IS is dropped into water, complete waterproofing* will protect it from harm. The compact and durable body meets military specifications (MIL-STD). * Equivalent to JIS waterproof grade 7. (1m depth for 30 minutes) Waterproof speaker-mic, HM-138 IS An optional waterproof speaker-microphone, the HM-138 IS, provides reliable operation, even with the IC-M88 IS securely on your belt. 22 programmable channels for land use The IC-M88 IS has 22 programmable channels reserved for Land use (146–174MHz). Wide/narrow channel spacing is programmable for each channel, and CTCSS and DTCS signaling is built-in. *Appropriate license will be required. Li-Ion battery for extra long battery life With the FM approved, 1700mAh Li-Ion battery pack, get up to 20 hours of talk time* without "memory effect". A 6 unit rapid charger is optional. *Typical operation; Tx:Rx:Stand-by duty ratio = 5:5:90 Simple operation 6 clearly labeled buttons on the front panel and the volume/power knob maximize simplicity of operation. Even when wearing gloves, the large buttons are easy to operate. A large, clear LCD with backlighting and backlit buttons make night time operation simple. Intrinsically safe version approved by Factory Mutual Research Corporation This IS version of the M88 conforms to intrinsically safe rating of the FMRC (Factory Mutual Research Corporation). It can be used in many hazardous marine environments such as petroleum tankers and bulk cargo carrier. Ask your dealer for details. Intrinsically safe Class Ι, ΙΙ and ΙΙΙ, Division 1, Groups C, D, E, F, and G; Nonincendive Class Ι, Division 2, Groups A, B, C and D hazardous locations when used with Icom BP-227FM battery pack. “Max. Temp. T3C at 40°C” Additional features Auto WX scan and WX Alert function (U.S.A. version only) Simple Up/Down switches for operating channel selection Instant access to Ch. 16 and Ch. 9 (or call channel) Simple add/delete TAG scanning operation Powerful 5W output 2 Step power saver 4 Level battery indicator The self check function checks internal temperature, connected battery voltage (over voltage detection), and water intrusion