Garmin VHF 725e - Manual (Page 40)

34
Glossary
Glossary of Radio Terminology and Abbreviations
Canadian Channels: Channel designations as defined and
regulated by Industry Canada, (RIC), Marine Communications &
Traffic Services.
Duplex: Transmit and receive on different frequencies.
FM: Frequency Modulation
International Channels: Channel designations as defined for use in
international waters by the International Telecommunications Union, (ITU).
Marina Channels: Special channels reserved for marinas located in
selected European countries. These channels must be programmed
into the VHF International Band by an authorized dealer.
Private Channels: Channels which are assigned by regulatory
agencies governing VHF radio use for a specific region or country.
These channels must be programmed into the VHF International Band
by an authorized dealer.
PTT: Press-To-Talk switch
RX: Receive
Simplex: Transmit and receive on the same frequency.
Squelch: To suppress background noise.
Tri-Watch: Monitors Channels 16 and the Call channel while
working on yet another user designated channel.
TX: Transmit
U.S.A. Channels: Channel designations as defined by the Federal
Communications Commission, (FCC).
VHF:
Very High Frequency (30 MHz to 300 MHz)
APPENDIX F