iINTRODUCTIONFOREWORDWe appreciate you choosing Icom for your communication needs.The MDC 1200 signaling system is built into your IC-V88 vhf transceiver and IC-U88 uhf transceiver.IMPORTANTFIRST, CAREFULLY READ INSTRUCTIONS q and w that are provided with the transceiver.SAVE THIS OPERATING GUIDE— This operating guide contains additional important operating instructions forthe IC-V88 vhf transceiver and IC-U88 uhf transceiver.taBLe Of cOntentsIcom, Icom Inc. and the Icom logo are registered trademarksof Icom Incorporated (Japan) in Japan, the United States,the United Kingdom, Germany, France, Spain, Russia and/or other countries.All other products or brands are registered trademarks ortrademarks of their respective holders.FOREWORD ......................................................................... iIMPORTANT .......................................................................... iTABLE OF CONTENTS ......................................................... i1 ACCESSORIES ...........................................................1–2Accessory attachments ....................................................1D Antenna ........................................................................1D Battery pack .................................................................1D Belt clip.........................................................................1D Jack cover ....................................................................22 PROGRAMMABLE KEY FUNCTIONS .......................3–4Programmable key functions ............................................33 MDC 1200 SYSTEM OPERATION ..................................5About the MDC 1200 system ..........................................5Receiving .........................................................................5D Receiving a PTT ID ......................................................5Transmitting ......................................................................5D Transmitting a PTT ID...................................................54 USER SET MODE ...........................................................6User Set mode .................................................................65 FRONT PANEL PROGRAMMING .............................7–11Front Panel Programming mode ......................................7D Entering the Front Panel Programming mode ..............7D Selecting a channel to program ..................................7D Editing the Receive (RX) and Transmit (TX) frequencies ...8D Selecting the RX and TX tones ....................................8D Editing the channel name...........................................10D Other settings .............................................................11