Direction finding receiver

Details Direction finding receiver Direction finding receiver

1975-02-26

1977-01-11

Wilbur, Maynard R.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343115, 325451, G01S 502

Patent

active

040030601

ABSTRACT:
A direction finding receiver contained in a hand held portable housing with a ferrite rod antenna mounted in and protruding through the housing so that when the antenna axis points to the radio frequency signal source to be direction found, a null is obtained in the signal level. The antenna is coupled to the receiver circuit which comprises a broadband fixed tuned radio frequency amplifier having low sensitivity, a modulation oscillator used to modulate the broadband fixed tuned rf amplifier by tone injection when a steady carrier is present, a demodulator for demodulating the rf signal, and an audio amplifier for amplifying the demodulated signal.

REFERENCES:
patent: 3115635 (1963-12-01), Leeming, Jr. et al.
patent: 3323129 (1967-05-01), Held
Bendix Navigator 410 Circuit Details, Nova-Tech Inc., Manhattan Beach, Calif., 5-28-63.
Guidebook of Electronic Ckts., J. Markus, McGraw-Hill, 1974, p. 697.

Affiliated with

Also associated with

Rating

Direction finding receiver does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Direction finding receiver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Direction finding receiver will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1747326