viiCONTENTSCHAPTER 17 INSTALLING OPTIONSREMOVING THE BOTTOM CASE ........................ 97DRU-3A DIGITAL RECORDING UNIT ................... 97VS-3 VOICE SYNTHESIZER UNIT ........................ 97MB-430 MOBILE BRACKET .................................. 98RC-2000 REMOTE PANEL .................................... 98CHAPTER 18 MAINTENANCEGENERAL INFORMATION .................................... 99SERVICE ........................................................... 99SERVICE NOTE ................................................ 99CLEANING ........................................................ 99LITHIUM BATTERY ............................................... 99TROUBLESHOOTING ......................................... 100OPERATION NOTICES ....................................... 103TX SIGNAL HARMONICS ............................... 103INTERNAL BEATS .......................................... 103VISUAL SCAN ................................................. 103SENSITIVITY (K-type ONLY) ........................... 103AGC ................................................................ 103SUB-RECEIVER .............................................. 103CHAPTER 19 OPTIONAL ACCESSORIESOPTIONAL ACCESSORIES ................................ 104CHAPTER 20 SPECIFICATIONSSPECIFICATIONS ............................................... 105CHAPTER 21 APPENDIXTS-B2000 FRONT PANEL ................................... 109BUILT-IN TNC COMMAND LIST .......................... 110COM CONNECTOR ............................................ 113HARDWARE DESCRIPTION ........................... 113CONTROL OPERATION ................................. 113COMPUTER CONTROL .................................. 114Alphabetical Commands ............................. 114Parameters ................................................. 114Terminator .................................................. 114Error Messages .......................................... 114PC CONTROL COMMAND TABLES ................... 115CHAPTER 22 INDEXINDEX ................................................................. 142