Abbreviations used in this manual
ADDR Address
AGC Automatic Gain Control
AM Amplitude Modulation
ARQ Automatic Repetition reQuest
CLRF Clarify
CU Control Unit
DIRTLX Direct Telex
DSC Digital Selective Calling
ETSI European Telecommunications Standards Institute
FEC Forward Error Correction
GA Go Ahead
GMDSS Global Maritime Distress and Safety System
GPS Global Positioning System
HF High Frequency
H3E Single sideband - full carrier
IMO International Maritime Organisation
IRS Information Receiving Station
ISS Information Sending Station
ITU International Telecommunication Union
J3E Single sideband - no carrier
MF Medium Frequency
MMSI Maritime Mobile Ship Identification
MOM Just a moment please
MSG Message
NBDP Narrow Band Direct Printing
PTT Push-To-Talk
RF-G Receiver Frequency Gain
Rx Receive
SSB Single Side Band
TEL Telephony
Tx Transmit
UTC Co-ordinated Universal Time
VHF Very High Frequency
WRU Who Are You
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