iIMPORTANTREAD ALL INSTRUCTIONS carefully and com-pletely before using the transceiver.SAVE THIS INSTRUCTION MANUAL — Thisinstruction manual contains important operating instructionsfor the IC-F3261DT/DS, IC-F3263DT/DS VHF TRANSCEIV-ERS and IC-F4261DT/DS, IC-F4263DT/DS UHF TRANS-CEIVERS.This instruction manual includes some functions which areusable only when they are preset by your dealer. Ask yourdealer for details.See the operating guide for details of IDAS™ NXDN™,BIIS, MDC and LTR ® system operations. Ask your dealerfor details.WORD DEFINITIONRDANGER! Personal death, serious injury or an explo-sion may occur.RWARNING! 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.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.IDAS is trademark of Icom Incorporated (Japan).NXDN is a trademark of Icom Incorporated and JVC KENWOOD Corporation.LTR is a registered trademark of the E.F.Johnson Technologies, INC. in theUnited States.All other products or brands are registered trademarks or trademarks of theirrespective holders.VOICE CODING TECHNOLOGYEXPLICIT DEFINITIONSThe AMBE+2™ voice coding Technology embodied in thisproduct is protected by intellectual property rights includingpatent rights, copyrights and trade secrets of Digital VoiceSystems, Inc. This voice coding Technology is licensed solelyfor use within this Communications Equipment. The user ofthis Technology is explicitly prohibited from attempting to ex-tract, remove, decompile, reverse engineer, or disassemblethe Object Code, or in any other way convert the Object Codeinto a human-readable form. U.S. Patent Nos.#5,870,405, #5,826,222, #5,754,974, #5,701,390, #5,715,365,#5,649,050, #5,630,011, #5,581,656, #5,517,511, #5,491,772,#5,247,579, #5,226,084 and #5,195,166.