Glossary Of Terms - Entel HT644 GMDSS User Manual

Glossary of Terms

Term
Canadian Channels designated as defined and regulated by Industry Canada, (RIC),
Channels Marine Communications & Traffic Services.
Duplex Transmit and receive on different frequencies.
Encryption Scrambled audio for extra privacy.
FM Frequency Modulation.
International Channel designations as defined for use in international waters by the
Channels International Telecommunications Union (ITU).
Marine Special channels reserved for marinas located in selected European
Channels countries.These channels are pre-programmed in the transceiver as P1 & P2.
Channels which are assigned by regulatory agencies governing VHF radio use
Private
for a specific region or country.These channels are prefixed with a "P" and
Channels
can only be programmed into the transceiver by authorised dealers.
PTT Press To Talk (Transmit)
RX Receive
Simplex Transmit and receive on the same frequency.
Squelch To suppress background noise
TX Transmit
Transceiver A device that can transmit and receive
USA Channel designations as defined by the Federal Communications Commission
Channels (FCCVOX )
VOX Voice Operated Transmit
VHF Very High Frequency (30MHz to 300 MHz)
Description
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