Circuit arrangement for determining the distance to a VOR transm

Details Circuit arrangement for determining the distance to a VOR transm Circuit arrangement for determining the distance to a VOR transm

1975-05-05

1977-07-12

Wilbur, Maynard R.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343107, G01S 144

Patent

active

040358038

ABSTRACT:
A circuit arrangement for determining the distance of an aircraft from a VOR transmitter is connected with a VOR receiver which determines angular information of the VOR transmitter perpendicular to the radial position line with an accuracy of .alpha. degrees from one bearing shift to the next. The arrangement includes a pulse generator operable to produce counting pulses at a predetermined pulsing frequency of less than 1 Hz, preferably 0.95 Hz or 0.0549 Hz, and feeds the pulses to a counter. Apparatus responsive to a bearing shift applies the counting pulses to the counter and removes the counting pulses from the counter in response to the next bearing shift. A display is connected to the counter and calibrated in minutes for displaying the count to a pilot in order to indicate the flight time to the VOR transmitter at the airspeed employed in the measuring operation.

REFERENCES:
patent: 3653047 (1972-03-01), Anthony
patent: 3792473 (1974-02-01), Sawicki
patent: 3800125 (1974-03-01), Cleary, Jr.

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