FOREWORD
Thank you for purchasing this Icom product.
The IC-M604A VHF MARINE TRANSCEIVER is designed
and built with Icom's state of the art technology and crafts-
manship. With proper care, this transceiver should provide
you with years of trouble-free operation.
We appreciate you making the IC-M604A your radio of
choice, and hope you agree with Icom's philosophy of "tech-
nology fi rst." Many hours of research and development went
into the de sign of your IC-M604A.
D FEATURES
❍ Built-in DSC meets ITU Class D requirement
❍ Front and rear panel microphone connection
❍ Optional COMMANDMICII™ (HM-157) and
COMMANDMICIII™ (HM-162) are available and
up to two COMMANDMIC™s can be connected
❍ Easy to make individual DSC Calls using Icom' s
MA-500TR Class B AIS Transponder
Icom, Icom Inc. and the Icom logo are registered trademarks of Icom Incor-
porated (Japan) in Japan, the United States, the United Kingdom, Germany,
France, Spain, Russia and/or other countries.
COMMANDMIC is a registered trademark of Icom Incorporated (Japan) in the
United States.
i
IMPORTANT
READ ALL INSTRUCTIONS
before using the transceiver.
SAVE THIS INSTRUCTION MANUAL
struction manual contains important operating instructions
for the IC-M604A.
EXPLICIT DEFINITIONS
WORD
Personal injury, fi re hazard or electric shock
R WARNING!
may occur.
CAUTION
Equipment damage may occur.
Recommended for optimum use. No risk of
NOTE
personal injury, fi re or electric shock.
CLEAN THE TRANSCEIVER AND MICROPHONE
THOROUGHLY WITH FRESH WATER after exposure to
water including salt, otherwise, the keys and switch may
become inoperable due to salt crystallization.
carefully and completely
— This in-
DEFINITION
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