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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 How to Turn On/Off the Power ...................................................................................1-2
1.3 Radiotelephone (RT) Screen......................................................................................1-2
1.4 DSC Scan Screen ......................................................................................................1-3
1.5 How to Adjust the Brilliance of the Display and Panel................................................1-4
1.6 How to Turn On/Off the Main Speaker .......................................................................1-4
1.7 How to Scan ...............................................................................................................1-4
1.8 How to Set the Auto Acknowledgement .....................................................................1-5
1.9 Control Unit Priority ....................................................................................................1-5
1.10 Intercom......................................................................................................................1-6
1.11 Operation of Session ..................................................................................................1-6
2. SSB RADIOTELEPHONE .....................................................................................2-1
2.1 How to Select the Class of Emission..........................................................................2-1
2.2 How to Select the Channel, Frequency......................................................................2-1
2.3 Transmission ..............................................................................................................2-3
2.3.1 Transmission procedure.................................................................................2-3
2.3.2 How to change transmission power ...............................................................2-3
2.3.3 Condition of the transmitter ............................................................................2-4
2.4 Reception ...................................................................................................................2-5
2.4.1 RF gain (sensitivity) adjustment .....................................................................2-5
2.4.2 S-meter...........................................................................................................2-5
2.4.3 Receive AM broadcasting stations .................................................................2-5
2.4.4 Noise blanker .................................................................................................2-5
2.4.5 Noise reduction ..............................................................................................2-5
2.4.6 Notch filter ......................................................................................................2-6
2.4.7 Squelch ..........................................................................................................2-6
2.4.8 Attenuator.......................................................................................................2-6
2.5 User Channels............................................................................................................2-6
3. DSC OVERVIEW ...................................................................................................3-1
3.1 What is DSC? .............................................................................................................3-1
3.2 DSC Message ............................................................................................................3-1
3.3 Audio Alarms ..............................................................................................................3-2
3.4 Description of Call Screens ........................................................................................3-3
3.4.1 RX calls ..........................................................................................................3-3
3.4.2 TX calls...........................................................................................................3-4
4. DSC DISTRESS OPERATIONS ............................................................................4-1
4.1 How to Send Distress Alert.........................................................................................4-1
4.1.1 How to send distress alert by DISTRESS key with distress information
not edited........................................................................................................4-1
4.1.2 How to send distress alert by DISTRESS key with distress information
edited..............................................................................................................4-3
4.2 How to Receive a Distress Alert.................................................................................4-6
4.2.1 Distress alert received on MF band................................................................4-6
4.2.2 Distress alert received on HF band ................................................................4-8
4.3 How to Send Distress Relay on Behalf of a Ship in Distress....................................4-11