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vertical redundancy check (VRC)
Synonym transverse redundancy check.
very high frequency (VHF)
Frequencies from 30 MHz to 300 MHz. See electromagnetic spectrum.
very low frequency (VLF)
Frequencies from 3 kHz to 30 kHz. See electromagnetic spectrum.
vestigial sideband (VSB) transmission
Modified AM transmission in which one sideband, the carrier, and only a portion of the other sideband are transmitted.
VF
Abbreviation for voice frequency.
VF patch bay
See voice frequency primary patch bay.
VFCT
Abbreviation for voice frequency carrier telegraph. See voice-frequency telegraph.
VFCTG
Abbreviation for voice-frequency carrier telegraph. See voice-frequency telegraph.
VFTG
Abbreviation for voice-frequency telegraph.
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