1
Advanced DSC Calls ......................................................... 15
Changing a Function ...................................................... 17
The Function Tree .................................................... 18
GMDSS Radiotelex Terminal ............................................ 19
Introduction .................................................................... 19
Keyboard Indicator Lamps ............................................. 20
Keyboard Function Keys ................................................ 20
Switching On .................................................................. 21
Channel Selection .......................................................... 21
Transmitting a Message ................................................. 21
Editing a Message ......................................................... 21
Receiving a Message ..................................................... 22
Installation and Initial Set-up ......................................... 22
Printer ....................................................................... 22
Keyboard .................................................................. 22
Modem Set-up .......................................................... 22
Example of FEC Transmission ...................................... 23
Example of ARQ Transmission to a Coast Statio .......... 23
Contents
Quick DISTRESS Call .......................................................... ii
DISTRESS Acknowledgement ............................................ ii
What Is What? ..................................................................... iii
Introduction ......................................................................... iv
About this Manual .............................................................. iv
Abbreviations ...................................................................... iv
MF/HF Fundamental Info .................................................... 2
Propagation of MF and HF Radio Waves. ....................... 2
Radiotelephony ................................................................ 2
Radiotelex ........................................................................ 2
DSC .................................................................................. 2
Basic Functions ................................................................... 3
Switching ON/OFF ........................................................... 3
Setting Backlight Level .................................................... 3
Switching Loudspeaker ON/OFF ..................................... 3
Volume Control ................................................................ 3
Switching Squelch ON/OFF ............................................. 3
Setting Transmitter Power Level ...................................... 3
Manual Call Functions ........................................................ 4
Telephony Channel Display Functions: ........................... 4
Frequency Display Functions: ......................................... 4
Tuning .............................................................................. 4
Station Display Functions: ............................................... 5
Distress Telephony Frequencies ..................................... 5
Distress Frequency Display Functions: ........................... 5
Two-tone Alarm Signal ........................................................ 6
Two-tone Alarm Display Functions: ................................. 6
Listening for Calls ............................................................... 6
Making a Manual Call .......................................................... 6
DSC Main Buttons ............................................................... 7
Calling Watch ................................................................... 8
DSC Display Operation ....................................................... 9
Receiving an Individual DSC Call .................................... 9
Receiving DISTRESS Call ............................................. 10
Calling a SHIP ................................................................. 11
Calling a SHORE Station ............................................... 12
Address Book ................................................................. 13
Using Two Control Units ................................................ 14
Priority of Control Unit #1 ......................................... 14
Control Unit #2 Taking Over the Control .................. 14
Status Indication ....................................................... 14
Responding to Incoming DSC Calls ........................ 14
Power On/Off By Control Unit #2 ............................. 14
Interconnecting ......................................................... 14
DSC Scanning Frequencies ..................................... 14
0404
