C ontentsImportant Notice! .......................................................... 1Introduction................................................................... 2Accessories & Options ................................................ 3Control & Connectors .................................................. 5Top Panel ........................................................................... 5Front Panel ......................................................................... 6Side Panel .......................................................................... 7Keypad ............................................................................... 8LCD Display ...................................................................... 9Before You Begin ........................................................ 10Precautions....................................................................... 10Belt Clip Installation ........................................................ 10Battery Installation and Removal .................................... 11Battery Charging .............................................................. 12Low Battery Indication .................................................... 13Installing the FBA-25A Alkaline Battery Case ............... 13Basic Operation .......................................................... 14Preliminary Steps ............................................................. 14Operation Quick Start ...................................................... 14Squelch Adjustment ......................................................... 15Accessing the 121.5 MHz Emergency Frequency ........... 16Transmission .................................................................... 16Advanced Operation .................................................. 17Tuning Methods ............................................................... 17Reception of Weather Channel Broadcasts ...................... 18Monitor Switch ................................................................ 19ANL (Automatic Noise Limiter) Feature ........................ 19Temperature/battery Voltage Display .............................. 20LOCK Function ............................................................... 21Beep On/Off..................................................................... 21Receive Battery Saver Setup ........................................... 22Changing the Channel Steps ............................................ 23Pitch Control .................................................................... 24VOX Operation................................................................ 25PA Operation .................................................................... 26Timer Operation............................................................... 28Memory Operation ...................................................... 30Memory System Operation .............................................. 30Memory Storage .............................................................. 30Recalling the Memories ................................................... 31Scanning Operation ................................................... 32Dual Watch Operation ................................................ 34Priority Dual Watch Operation .................................. 35VOR Navigation .......................................................... 36To Select the DVOR Mode .............................................. 37Flying to a VOR Station .................................................. 38Entering a Desired Course ............................................... 40Position Cross-checking .................................................. 41Split Operation ................................................................. 42Programming the USER Key Assignment ................ 43Field Programming Mode .......................................... 44CPU Resetting............................................................. 45Menu (“Set”) Mode ..................................................... 46Specifications ............................................................. 54Troubleshooting ......................................................... 56Book Memory Channel List ....................................... 57NOTICEThere are no user-serviceable points inside thistransceiver. All service jobs must be referred toyour Authorized Service Center.