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vii
TABLE OF CONTENTS
FOREWORD...................................................................................................... xii
SYSTEM CONFIGURATIONS ........................................................................... xiv
1. OPERATIONAL OVERVIEW......................................................................... 1-1
1.1 Controls..................................................................................................................... 1-1
1.2 Turning the Power On/Off .......................................................................................... 1-2
1.3 Radiotelephone (RT) Screen .....................................................................................1-2
1.4 DSC Standby Screen.................................................................................................1-3
1.5 Control Unit Dimmer, Contrast ................................................................................... 1-4
1.6 Loudspeaker..............................................................................................................1-4
1.7 Setting Scan Frequencies.......................................................................................... 1-4
1.8 Setting for Auto Acknowledgement ............................................................................ 1-5
1.9 System Characteristics ..............................................................................................1-5
1.9.1 Equipment priority ...........................................................................................1-5
1.9.2 Controls become inoperative........................................................................... 1-5
1.9.3 Controls become operative.............................................................................. 1-5
1.9.4 Automatic setting of working frequency ........................................................... 1-6
1.10 Intercom ....................................................................................................................1-6
2. SSB RADIOTELEPHONE .............................................................................2-1
2.1 Choosing Class of Emission ......................................................................................2-1
2.2 Choosing Channel, Frequency ..................................................................................2-2
2.3 Transmitting............................................................................................................... 2-3
2.3.1 Transmitting procedure.................................................................................... 2-3
2.3.2 Reducing transmitter power............................................................................. 2-4
2.3.3 Condition of the transmitting unit ..................................................................... 2-4
2.4 Receiving................................................................................................................... 2-5
2.4.1 RF gain (sensitivity) adjustment.......................................................................2-5
2.4.2 S-meter ........................................................................................................... 2-5
2.4.3 Receiving AM broadcasting stations................................................................ 2-6
2.4.4 Squelch function.............................................................................................. 2-6
2.4.5 Noise blanker .................................................................................................. 2-6
2.5 When Automatic Tuning Fails .................................................................................... 2-7
2.6 User Channels...........................................................................................................2-8
3. DSC OVERVIEW ...........................................................................................3-1
3.1 What is DSC?............................................................................................................3-1
3.2 DSC Message ........................................................................................................... 3-1
3.3 Audio Alarms .............................................................................................................3-3
3.4 Interpreting Call Displays........................................................................................... 3-4
3.4.1 Receive calls................................................................................................... 3-4