Thank you for purchasing this Icom product. The IC-M400BB
V H F M A R I N E T R A N S C E I V E R 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-
We appreciate you making the IC-M400BB your radio of
choice, and hope you agree with Icom’s philosophy of “tech-
nology ﬁrst.” Many hours of research and development went
into the de sign of your IC-M400BB.
❍ Built-in DSC meets ITU Class D requirement
❍ Rugged waterproof construction
™ (HM-195) supplied*.
❍ Easy to make an individual DSC calls using the
optional MA-500TR Class B AIS Transponder
* May not be supplied, depending on the transceiver version.
In that case, purchase separately.
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-M400BB.
RWARNING! Personal injury, fire hazard or electric
shock may occur.
CAUTION Equipment damage may occur.
If disregarded, inconvenience only. 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.