iv
VS-2 VOICE SYNTHESIZER UNIT ........................ 75
SO-2 TEMPERATURE-COMPENSATED
CRYSTAL OSCILLATOR (TCXO) .......................... 76
SPECIFICATIONS 77
APPENDICES 79
APPENDIX A: LEARNING ABOUT DSP ............... 79
APPENDIX B: PROPAGATION INFORMATION .... 80
STANDARD TIME AND INFORMATION
STATIONS ......................................................... 80
NCDXF/IARU BEACON NETWORK .................. 80
HF BEACONS ................................................... 80
APPENDIX C: GENERAL COVERAGE RECEIVER
FOR SWLING ........................................................ 82
APPENDIX D: COM CONNECTOR
PROTOCOL .......................................................... 83
HARDWARE DESCRIPTION ............................. 83
CONTROL OPERATION ................................... 83
COMMANDS ..................................................... 83
COMMAND DESCRIPTION .............................. 83
PARAMETER DESCRIPTION ........................... 84
TERMINATOR ................................................... 85
TYPES OF COMMANDS ................................... 85
COMPUTER CONTROL COMMANDS .............. 85
ERROR MESSAGES......................................... 86
COMMAND USE PRECAUTIONS ..................... 86
MENU SELECTION TABLE FOR
“EX” COMMAND, PARAMETER 36 ................... 87
READING COMMAND TABLES ........................ 89
COMMAND TABLES ......................................... 89
INDEX 96
CHAPTER 11 OPERATOR CONVENIENCES 63
MICROPROCESSOR RESET ............................... 63
INITIAL SETTINGS ............................................ 63
PARTIAL RESET ............................................... 63
FULL RESET ..................................................... 63
SWITCHING ANT 1/ ANT 2 .................................... 63
PROGRAMMABLE FUNCTION BUTTONS ........... 63
ASSIGNING FUNCTIONS ................................. 64
USING THE PROGRAMMED BUTTONS .......... 64
LOCK FUNCTION ................................................. 64
BEEP FUNCTION .................................................. 64
BUTTON CONFIRMATION ................................ 65
ALARM NOTIFICATION .................................... 65
DISPLAY DIMMER ................................................ 65
QUICK DATA TRANSFER ..................................... 65
SETTING UP ..................................................... 65
Equipment Needed ....................................... 65
Connections ................................................. 66
USING QUICK TRANSFER ............................... 66
Transferring Data .......................................... 66
Receiving Data ............................................. 66
DRU-3 DIGITAL RECORDING SYSTEM
(OPTIONAL) .......................................................... 67
RECORDING MESSAGES ................................ 67
MESSAGE PLAYBACK ..................................... 67
Checking Messages ..................................... 67
Transmitting Messages (VOX) ...................... 67
Transmitting Messages (Manual TX/RX) ....... 68
CONTINUOUS MULTI-CHANNEL
PLAYBACK ........................................................ 68
ALTERING INTER-MESSAGE INTERVAL ......... 68
VS-2 VOICE SYNTHESIZER (OPTIONAL) ............ 68
CHAPTER 12 MAINTENANCE 69
GENERAL INFORMATION .................................... 69
SERVICE ............................................................... 69
SERVICE NOTE .................................................... 69
CLEANING ............................................................ 69
INTERNAL ADJUSTMENTS .................................. 70
REFERENCE FREQUENCY CALIBRATION ..... 70
DRU-3 DIGITAL RECORDING UNIT
(OPTIONAL) ...................................................... 70
AT-300 EXTERNAL TUNER (OPTIONAL) ......... 70
TROUBLESHOOTING ........................................... 71
CHAPTER 13 OPTIONAL ACCESSORIES 74
CHAPTER 14 INSTALLING OPTIONS 75
REMOVING THE CASE ........................................ 75
TOP CASE ........................................................ 75
BOTTOM CASE ................................................ 75
DRU-3 DIGITAL RECORDING UNIT ..................... 75