FM-very high frequency metal detector

Details FM-very high frequency metal detector FM-very high frequency metal detector

1995-05-25

1997-04-15

Hajec, Donald T.

Communications: radio wave antennas

Antennas

High frequency type loops

343741, H01Q 116

Patent

active

056214189

ABSTRACT:
A modified loop and nondirectional antenna system and receiver used in conjunction with a magnetic compass and 2 level vials for a point direction used to detect underground parasitic antennas or reflectors by supression and reception of receiver. The detector is directed at very deep propagated radio waves, several hundred feet deep or less.

REFERENCES:
patent: 3573832 (1971-04-01), Callaghan
patent: 3993998 (1976-11-01), Kimmett
patent: 4397041 (1983-08-01), Takeda et al.
patent: 4495706 (1985-01-01), Kaminski
patent: 4595928 (1986-06-01), Wingard

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