NASA NTRS · 19720000507
Radio direction finder
Abstract
Three-antenna interferometric system is described for homing on very high frequency transmitters. Antenna signals are sequentially sampled with single receiver and receiver output pulses are held for comparison of signals from outermost antennas with those of center antenna. System can be installed as redundant navigation system in case of failure of VOR receivers.
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Hershey, L. M.. 1972-12-01. Radio direction finder. https://ntrs.nasa.gov/citations/19720000507
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