very high frequency (VHF)
Frequencies from 30 MHz to 300 MHz. See electromagnetic spectrum.
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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.
VHF
Abbreviation for very high frequency. See electromagnetic spectrum.
via net loss (VNL)
Pertaining to circuit performance prediction and description that allows circuit parameters to be predetermined and the circuit to be designed to meet established criteria by analyzing actual, theoretical, and calculated losses.
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