IMPORTANTREAD ALL INSTRUCTIONS carefully and com-pletely before using the transceiver.SAVE THIS INSTRUCTION MANUAL— Thisinstruction manual contains important operating instructionsfor the IC-F111/F121 VHF TRANSCEIVERS and IC-F211/F221 UHF TRANSCEIVERS.EXPLICIT DEFINITIONSWORD DEFINITIONRWARNING Personal injury, fire hazard or electricshock may occur.CAUTION Equipment damage may occur.NOTE If disregarded, inconvenience only. No riskof personal injury, fire or electric shock.PRECAUTIONSIcom, Icom Inc. and the Icom logo are registered trademarks of IcomIncorporated (Japan) in Japan, the United states, the United King-dom, Germany, France, Spain, Russia and/or other countries.iRWARNING! NEVER connect the transceiver to anAC outlet. This may pose a fire hazard or result in an electricshock.RWARNING! NEVER connect the transceiver to apower source of more than 16 V DC such as a 24 V battery.This connection will ruin the transceiver.RWARNING! NEVER cut the DC power cable be-tween the DC plug and fuse holder. If an incorrect connectionis made after cutting, the transceiver might be damaged.RWARNING! NEVER place the transceiver wherenormal operation of the vehicle may be hindered or where itcould cause bodily injury.CAUTION! NEVER touch the transceiver (especiallythe heat sink) when transmitting continuously for long peri-ods. It will become hot.CAUTION! NEVER allow children to touch the trans-ceiver.CAUTION! NEVER expose the transceiver to rain,snow or any liquids. The transceiver may be damaged.