Radio beacon for a nautical emergency rescue system

Details Radio beacon for a nautical emergency rescue system Radio beacon for a nautical emergency rescue system

1976-09-17

1978-07-18

Moskowitz, Nelson

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

325116, 343112TC, 343113PT, 343709, G01S 504, H04B 1034

Patent

active

041018940

ABSTRACT:
A radio beacon for a nautical emergency rescue system includes a flotation housing containing an antenna in an upper portion, a ground plane and a transmitter in a central portion, and batteries in a lower portion. When placed in the water, the lower section is submerged and the central section is at surface level, enabling contact between the ground plane and the water via conductors that pass through the housing. The upper portion projects above the water to permit efficient radiation from the antenna, which consists of a vertical rod and a coaxial cylindrical can that is open at the bottom end. The upper end of the rod is attached to the center of the can closed end. The radio transmitter is frequency modulated in a distinctive pattern, and operates with a duty cycle that permits detection and direction finding of multiple such beacons.

REFERENCES:
patent: 3068415 (1962-12-01), Johnson
patent: 3714573 (1973-01-01), Grossman
patent: 3747104 (1973-07-01), Pansini
patent: 3946391 (1976-03-01), Cuckler et al.
FM and Television, pp. 22-24, 48, 57, May, 1946.

Affiliated with

Also associated with

Rating

Radio beacon for a nautical emergency rescue system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Radio beacon for a nautical emergency rescue system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radio beacon for a nautical emergency rescue system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-342244