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U, V
W to Z
xl
UHF
Ultra High Frequency
VHF
Very High Frequency
VCO
Voltage-Controlled Oscillator; an oscillator whereby the frequency of oscilla-
tion can be varied by changing a control voltage.
VOX
Voice Operated Switch; Used with MRTI.
VSWR
Voltage Standing Wave Ratio.
WCI
Wildcard Input
WCO
Wildcard Output
WFI
Word Frame Interrupt; used to synchronize trunking data messages in a Smart
Repeater system.
Wide Area
Wide area systems allow expanded radio coverage by using multiple receivers
and/or transmitters.
WL
Wireline
WL Rx
Wireline Receive; information from station rf receiver sent to wireline equip-
ment.
WL Tx
Wireline Transmit; information from wireline equipment sent to station rf trans-
mitter.
68P81096E30-F
08/06/07
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