Glossary
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M
MF
Medium Frequency
MMSI
Maritime Mobile Ship Identification
P
PTT
Push To Talk
R
RX
Receive
S
SSB
Single Side Band
SWR
Standing Wave Ratio
T
TFT
Thin Film Transistor. type of liquid crystal display.
TU
Transceiver Unit
TX
Transmit
U
UTC
Coordinated Universal Time. The International Atomic Time (TAI)
with leap seconds added at irregular intervals to compensate for
the Earth’s slowing rotation. Leap seconds are used to allow UTC
to closely track UT1, which is mean solar time at the Royal
Observatory, Greenwich.