Indication device in plan position indication system

Communications: radio wave antennas – Antennas – Balanced doublet - centerfed

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Details

340 1R, 340 3C, 343 11R, G01S 722, G01S 968

Patent

active

040386546

ABSTRACT:
A plan position indicating system which includes a display screen and means for indicating on the screen the tilt angle of the transmitted beam and received signals to enable measurement not only of direction and distance but also the horizontal and vertical components thereof.

REFERENCES:
patent: 2422697 (1947-06-01), Meacham
patent: 3602877 (1971-08-01), Currie et al.
patent: 3646557 (1972-02-01), Scheer

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