Portable VHF receiver/tape recorder calibrator

Details Portable VHF receiver/tape recorder calibrator Portable VHF receiver/tape recorder calibrator

1996-01-23

1998-06-09

Vo, Nguyen

Telecommunications

Transmitter

Angle modulation

455114, 455126, H04B 104

Patent

active

057651019

ABSTRACT:
A calibrated VHF/FM source for use in correcting tape recorder and receiver rrors which consolidates these functions in a lightweight rack using commercial test parts and maintains a high precision of accuracy by having the system monitor it's own output and correct the distortion and amplitude errors attributable to the nonlinear behavior of the a Voltage Variable Capacitance diode (VVC diode) of the Voltage Capactive Oscillator (VCO) of the VHF FM transmitter.

REFERENCES:
patent: 3571760 (1971-03-01), Edmu
patent: 5507015 (1996-04-01), Karczewski et al.

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