11TABLE OF CONTENTSIMPORTANT .............................................................. iEXPLICIT DEFINITIONS ........................................... iPRECAUTIONS ......................................................... iSUPPLIED ACCESSORIES ...................................... i1 TABLE OF CONTENTS ....................................... 12 PANEL DESCRIPTION ................................... 2 – 6 Front panel ........................................................ 2 Function display ................................................. 5 Rear panel ......................................................... 63 INSTALLATION AND CONNECTIONS ......... 7 – 10 Grounding .......................................................... 7 Receiver stand ................................................... 7 Optional bracket and carrying handle ................ 7 Connections ...................................................... 8 Antenna connection ........................................... 9 Tape recorder connections ................................ 9 Transceive function ............................................ 9 FSK and AFSK (SSTV) connections ............... 10 Connecting to a PC ......................................... 104 FREQUENCY SETTING .............................. 11 – 13 Read me first ................................................... 11 Using the keypad ............................................. 11 Frequency setting ............................................ 12 Dial lock function ............................................. 135 RECEIVE FUNCTIONS ............................... 14 – 20 Mode selection ................................................ 14 Squelch and RF gain ....................................... 14 Twin PBT operation ......................................... 15 Noise blanker ................................................... 15 Preamp ............................................................ 16 Attenuator ........................................................ 16 AGC time constant .......................................... 16 Antenna selection ............................................ 16 CW reverse mode ............................................ 17 CW pitch control .............................................. 17 RTTY reverse mode ........................................ 17 Filter selection ................................................. 18 Filter set mode ................................................. 19 Optional noise reduction function .................... 20 Optional auto notch function ............................ 206 MEMORY OPERATION ............................... 21 – 24 Memory channels ............................................ 21 Memory channel selection ............................... 21 Memory channel programming ........................ 22 Frequency transferring .................................... 23 Memory names ................................................ 24 Memory clearing .............................................. 247 SCANS ........................................................ 25 – 27 Scan types ....................................................... 25 Preparation ...................................................... 25 Programmed scan operation ........................... 26 Memory/select memory scan operation .......... 26 Setting select memory channels ..................... 26 Priority watch operation ................................... 27 Auto memory write scan operation .................. 278 CLOCK AND TIMERS ................................. 28 – 29 Setting the current time ................................... 28 Setting power-on time ...................................... 28 Setting power-off time ...................................... 29 Setting sleep timer period ................................ 299 SET MODE .................................................. 30 – 33 Set mode description ....................................... 3010 OPTION INSTALLATIONS ....................... 34 – 35 Opening the receiver’s case ............................ 34 CR-282 HIGH STABILITY CRYSTAL UNIT .......... 34 UT-102 VOICE SYNTHESIZER UNIT .................. 34 UT-106 DSP UNIT ............................................. 35 Optional IF filters ............................................. 3511 MAINTENANCE ........................................ 36 – 37 Troubleshooting ............................................... 36 Resetting the CPU ........................................... 36 Fuse replacement ............................................ 37 Clock backup battery replacement .................. 3712 SPECIFICATIONS ........................................... 3813 OPTIONS ......................................................... 3914 CONTROL COMMAND ............................ 40 – 43 Remote jack (CI-V) information ....................... 40