G–5
Glossary
SWR Standing-Wave Ratio; on a transmission line, the
ratio of the maximum voltage to the minimum
voltage or maximum current to the minimum
current; also the ratio of load impedance to in-
tended (50 ohms) load impedance.
THD Total Harmonic Distortion
translator A transmitter designed to internally change an FM
signal from one frequency to another for retrans-
mission. Used in conjunction with terrestrial-fed
networks.
satellator A transmitter equipped with an FSK ID option for
rebroadcasting a satellite-fed signal.
UHF Ultra High Frequency; frequencies in the 300 to
3000 MHz range.
VCO Voltage-Controlled Oscillator
VHF Very High Frequency; frequencies in the 30 to 300
MHz range.
VSWR Voltage Standing-Wave Ratio; see "SWR."
Wideband See "broadband."
