i
FOREWORD
Thank you for purchasing this Icom product. The IC-M504
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-M504 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-M504.
D
FEATURES
❍ Simple operation with large keys
❍ Easy to hear speaker
❍ Built-in DSC meets ITU Class D requirement
❍ Rugged waterproof construction
❍ Optional COMMANDMIC (HM-162/HM-157) are
available
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-M504.
EXPLICIT DEFINITIONS
WORD DEFINITION
R WARNING!
CAUTION
NOTE
Personal injury, fire hazard or electric shock
may occur.
Equipment damage may occur.
Recommended for optimum use. No risk of
personal injury, fire or electric shock.
CLEAN THE TRANSCEIVER AND MICROPHONE THOR-
OUGHLY WITH FRESH WATER after exposure to water
including salt, otherwise, the keys and switch may become
inoperable due to salt crystallization.
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.
COMMANDMIC II and COMMANDMIC III is a trademark of Icom Incorporated
(Japan) in the United States.