High Quality, Excellent Performance

Compact Body (W × H × D; 156.5 × 66.5 × 110.1 mm; 6.2 × 2.6 × 4.3 in)
Easy Installation in Limited Space

Powerful Front Mount Speaker
Delivers Loud and Clear Audio

Built-in Class D DSC with a CH70
Dedicated Receiver

Intuitive Operation with

Icom’s Marine User Interface

Easy-to-Read Full Dot-Matrix Display

HM-237B Detachable
Hand Microphone Supplied

IPX7 Submersible Construction
(1 m depth of water for 30 minutes)

AquaQuake™ Prevents Audio Degradation
from a Water-Logged Speaker

Made in Japan Quality and Reliability

Other features
Common NMEA interface for external GPS/NAV connection
MA-500TR Class B AIS transponder compatible
Tag scan and favorite channel functions
Dual/tri-watch function for monitoring CH16 and/or call channel
Priority scan function
Display and keypad backlighting
External speaker connection

General
IC-M220
Frequency range Tx 156.025–157.425 MHz
Rx 156.050–163.275 MHz
CH70 156.525 MHz
Usable channels USA, CAN, INT, WX channels
Type of emission 16K0G3E (FM), 16K0G2B (DSC)
Power supply requirement 13.8 V DC nominal
(11.7–15.9 V DC)
Current drain
(at 13.8 V DC) Tx 25W output 5A
Rx AF max. 1.2A
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) 156.5×66.5×110.1 mm;
6.2×2.6×4.3 inch
Weight (approx.) 700g; 1.5lb (with HM-237B)
NMEA formats Input RMC, GGA, GNS, GLL, VTG
Output DSC, DSE, RMC, GSA, GSV
TRANSMITTER
Output power (at 13.8 V DC) 25 W, 1 W
Max. frequency deviation ±5 kHz
Frequency tolerance ±5 ppm
Spurious emissions Less than –60dBc
RECEIVER
Sensitivity Main –13 dBµ typ. (12 dB SINAD)
DSC –5 dBµ emf typ. (1% BER)
Squelch sensitivity Less than –10dBμ
Adjacent channel
selectivity Main More than 68 dB
DSC More than 68 dBμ emf (1% BER)
Intermodulation Main More than 63 dB
DSC More than 55 dBμ emf (1% BER)
Sensitivity –14dBμ typ. (at 12dB SINAD)
Hum and noise More than 40dB
Audio output power
(at 10% distortion with a 4Ω load) 4.5W typical
Measurements made in accordance with TIA/EIA 603. All stated specifications are subject to change without notice or obligation.

Applicable IP Rating
Ingress Protection Standard
Water IPX7 (Waterproof protection)

What’s in the box:
Icom IC-M220 main transceiver
HM-237B hand microphone
DC power cable
Mounting bracket kit
Manual guide
1 year warranty