RWARNING! NEVER connect the transcever to anAC outlet. Ths may pose a fire hazard or result n an electrcshock.RWARNING! NEVER connect the transcever to apower source of more than 16 V DC such as a 24 V battery.Ths connecton wll run the transcever.RWARNING! NEVER cut the DC power cable be-tween the DC plug and fuse holder. If an ncorrect connec-ton s made after cuttng, the transcever mght be damaged.RWARNING! NEVER place the transcever wherenormal operaton of the vehcle may be hndered or where tcould cause bodly njury.CAUTION! NEVER allow chldren to touch the trans-cever.CAUTION! NEVER expose the transcever to ran,snow or any lquds.USE suppled or optonal mcrophone only. Other mcro-phones have dfferent pn assgnments and may damage thetranscever.DO NOT use or place the transcever n areas wth tem-peratures below –22°F (–30°C) or above +140°F (+60°C), orn areas subject to drect sunlght, such as the dashboard.PRECAUTIONSIMPORTANTREAD ALL INSTRUCTIONS carefully and com-pletely before usng the transcever.SAVE THIS INSTRUCTION MANUAL — Thsnstructon manual contans mportant operatng nstructons forthe IC-F521 VHF TRANSCEIVER and IC-F621 UHF TRANS-CEIVER.EXPLICIT DEFINITIONSWORD DEFINITIONRWARNING Personal njury, fre hazard or electrcshock may occur.CAUTION Equpment damage may occur.NOTE If dsregarded, nconvenence only. No rskof personal njury, fire or electrc shock.Icom, Icom Inc. and the logo are regstered trademarks ofIcom Incorporated (Japan) n the Unted States, the Unted Kng-dom, Germany, France, Span, Russa and/or other countres.