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New2001
FOREWORD
Thank you for purchasing this Icom product. The IC-M421
VHF MARINE TRANSCEIVER
is designed and built with Icom’s
state of the art technology and craftsmanship. With proper
care, this product should provide you with years of trouble-
free operation.
We want to take a couple of moments of your time to thank
you for making the IC-M421 your radio of choice, and hope
you agree with Icom’s philosophy of “technology first.” Many
hours of research and development went into the design of
your IC-M421.
D
FEATURES
❍ Built-in DSC meets ITU Class D require-
ment
❍ Superior receiver performance
❍ Large 2-digit Ch with scrolling channel
comment
❍ Rugged waterproof construction
❍ Easy to hear speaker
IMPORTANT
READ ALL INSTRUCTIONS carefully and completely
before using the transceiver.
SAVE THIS INSTRUCTION MANUAL — This in-
struction manual contains important operating instructions for
the IC-M421.
EXPLICIT DEFINITIONS
WORD
DEFINITION
RWARNING
CAUTION
NOTE
Personal injury, fire hazard or electric shock
may occur.
If disregarded, inconvenience only. No risk
of personal injury, fire or electric shock.
Equipment damage may occur.
Icom, Icom Inc. and the logo are registered trademarks of Icom Incor-
porated (Japan) in the United States, the United Kingdom, Germany, France,
Spain, Russia and/or other countries.
CLEAN THE TRANSCEIVER AND MICROPHONE THOR-
OUGHLY WITH FRESH WATER after exposure to water
including salt water, otherwise, the keys and switches may
become inoperable due to salt crystallization.
!IC-M421-3.qxd 06.5.26 1:43 PM Page i (1,1)
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