Icom IC-M421 Datasheet

VHF MARINE TRANSCEIVER

1m depth for 30 minutes

● Built-in Class D DSC

● Individual, Group & All Ships Call

● Position Request & Position Report

with External GPS Receiver Connection

● Waterproof Construction, Including
Microphone

(1m depth for 30 minutes*)

● Large Full Dot-matrix LCD with
10 Character Scrolling Channel Name

● Simple Operation with Large Buttons

● Simple Tag Scanning Function

● Loud Speaker Audio

* Equivalent to JIS Grade 7 or IPX7 of the corresponding

international standard IEC 60529 (2001).

One Powerful, Compact
Class D DSC Radio

One Powerful, Compact
Class D DSC Radio

Built-in Class D DSC

The IC-M421 has a built-in Ch 70 (DSC

channel) receiver, which monitors Ch 70

activity, even while you are receiving an­other channel. In an emergency situation,
an automated distress call can be sent at
the touch of a button.

Digital selective calling features

The DSC uses a unique ID (MMSI code)
similar to a telephone number. So you can
make a contact with the intended ID sta­tion or group directly or with all ships in the
area. When connected to an external GPS
receiver, the position request and position
report functions allow you to exchange the
ship’s position information. The polling (re-

quest/reply) function checks whether a spe-

cific ship is in the communication range. A
total of 100 address IDs can be pro­grammed with 10-character address name
and up to 40 received DSC messages (20

distress and 20 other calls) are stored.

Large LCD with Dot-matrix
Characters

The IC-M421 has a full dot-matrix display
with up to 168-character capability that al­lows you to see a host of information such
as channel number, channel name, posi­tion and DSC data etc. With the backlit dis­play, large buttons and knobs, the
IC-M421 is easy to operate, even at night.

Waterproof Protection

The IC-M421, including the microphone,
has waterproof protection, equivalent to
JIS waterproof specification Grade 7*.

* Equivalent to IPX7 of the corresponding inter-

national standard IEC 60529 (2001). 1m depth
for 30 minutes; except cables.

Loud Speaker Audio

The speaker’s high sound pressure level
delivers loud and clear reception, even
over background noise. The microphone is
tuned to pick up voice, while reducing am­bient noise.

And More

•

Standard remote function microphone for
convenient channel and

transmit power

selection

• Up to 70 programmable channels

• Simple and easy tag scanning system

• Dual watch and Tri-watch functions

• External speaker connector

•

ATIS encoder (Dutch and German versions only)

• Low voltage indicator for low battery alert

• UK marina channels included

(UK version only)

• Output power : 25W/1W (at 13.8V DC)

• Max. Freq. deviation: ±5.0kHz

• Frequency stability : Less than ±1.5kHz

• Spurious emissions : Less than 0.25

µW

• Adjacent Ch. power : More than 70dB

•

Audio harmonic distortion

: Less than 10%

(at 1kHz, 60% deviation)

• Residual modulation: More than 40dB

• Sensitivity : –2dBµ

emf typical (20dB SINAD)

• Squelch sensitivity : Less than 0dBµ emf

• Adj. Ch. selectivity : More than 70dB

• Spurious response : More than 70dB

• Intermodulation : More than 68dB

• Hum and noise : More than 40dB

• Audio output power : More than

2W (at 10% distortion

with a 4Ω load)

• Frequency range* : Tx 156.000–161.450MHz
Rx 156.000–163.425MHz

Ch. 70 Rx 156.525MHz

* Frequency range that may be subject to licensing conditions.

•Type of emission :

16K0G3E (FM), 16K0G2B (DSC)

• Usable channels : INT, USA* channels

* Available depending on version

• Power supply : 13.8V DC

(10.8 to 15.6V DC)

• Current drain (at 13.8V DC):

Tx high

(25W) 5.5A Max.

Rx Max. audio 1.5A Max.

•

Operating temp. range

: –20˚C to +60˚C

• Antenna connector : SO-239

(50Ω)

• Dimensions : 164(W)×78(H)×139.5(D) mm

(projections not included)

•Weight (approx.) : 1.15kg

• GPS interface : NMEA0183 ver 2.0, 3.01

RMC, GGA, GNS, GLL sentence.

2380 116th Avenue N.E., Bellevue,
WA 98004, U.S.A.
Phone : [phone]
Fax : [phone]
E-mail : [e-mail]
URL : http://www.icomamerica.com
<

Customer Service> Phone : [phone]

Communication Equipment
Himmelgeister Str. 100,
D-40225 Düsseldorf, Germany
Phone : [phone]
Fax : [phone]
E-mail : [e-mail]
URL : http://www.icomeurope.com

A.B.N. 88 006 092 575
290-294 Albert Street, Brunswick,
Victoria, 3056, Australia
Phone : [phone]
Fax : [phone]
E-mail : [e-mail]
URL : http://www.icom.net.au

Unit 9, Sea St., Herne Bay,
Kent, CT6 8LD, U.K.
Phone : [phone]
Fax : [phone]
E-mail : [e-mail]
URL : http://www.icomuk.co.uk

Zac de la Plaine, 1,
Rue Brindejonc des Moulinais BP 5804,
31505 Toulouse Cedex, France
Phone : [phone]
Fax: [phone]
E-mail : [e-mail]
URL : http://www.icom-france.com

Crta. de Gracia a Manresa Km. 14,750
08190 Sant Cugat del Valles Barcelona, Spain
Phone : [phone]
Fax : [phone]
E-mail : [e-mail]
URL : http://www.icomspain.com

146A Harris Road, East Tamaki,
Auckland, New Zealand
Phone : [phone]
Fax : [phone]
E-mail : [e-mail]
URL : http://www.icom.co.nz

Glenwood Centre #150-6165 Highway 17,
Delta, B.C., V4K 5B8, Canada
Phone : [phone]
Fax : [phone]
E-mail : [e-mail]
URL : http://www.icomcanada.com

Icom America Inc.

Icom (Europe) GmbH

Icom Spain S.L.

Icom (UK) Ltd.

Icom France S.a

Icom Canada

Icom (Australia) Pty. Ltd.

Icom New Zealand

JP98/14190QA

TW03/00288EM

Icom Inc. (Japan), is an ISO 9001 and ISO

14001 certification acquired company.

6F No. 68, Sec. 1 Cheng-Teh Road,
Tai p e i, Taiwan, R.O.C.
Phone : [phone]
Fax : [phone]
E-mail : [e-mail]
URL : http://www.asia-icom.com

Asia Icom Inc.

1305, Wanshang Plaza, Shijingshan Road,
Beijing, China
Phone : [phone]
Fax: [phone]
E-mail : [e-mail]
URL : http://www.bjicom.com

Beijing Icom Ltd.

Sopot, 3 maja 54, Poland
Phone : [phone]
Fax: [phone]
E-mail : [e-mail]
URL : http://www.icompolska.com.pl

Icom Polska

Printed in Japan

Count on us!

URL: http://www.icom.co.jp/world/index.html

Your local distributor/dealer:

1-1-32, Kamiminami, Hirano-ku, Osaka 547-0003, Japan Phone: [phone] Fax: [phone]

VHF MARINE TRANSCEIVER

SPECIFICATIONS

04YS0130 © 2004 Icom Inc.

GENERAL TRANSMITTER

RECEIVER

Measurements made in accordance with EN 301 025.
All stated specifications are subject to change without
notice or obligation.

Supplied accessories:

• Hand microphone • DC power cable

• RCA connector cable • Mounting bracket kit

• Microphone hanger

MB-69

OPTIONS

MB-69

FLUSH MOUNT KIT

For flush-mounting the
IC-M421 to a flat surface
such as an instrument
control panel.

HM-150B/150SW HAND MICROPHONE
White and black are available. Same as supplied.

DIMENSIONS

139.5mm78mm

28.3mm 14.2mm111.2mm

148mm

164mm

60.6mm