Accession Number:

AD0425361

Title:

IGNITION INTERFERENCE AUTOALARM SYSTEM.

Descriptive Note:

Final rept.,

Corporate Author:

NAVAL CIVIL ENGINEERING LAB PORT HUENEME CALIF

Personal Author(s):

Report Date:

1963-12-24

Pagination or Media Count:

44.0

Abstract:

A device called the Ignition Interference Autoalarm System is described. The system, intended for installation at the entrances of sensitive areas, is designed to detect electromagnetic interference above a predetermined level within a given radius, and to automatically give an optional visible or audible signal. Essentially, the system consists of a control unit, broadband antennas, and assocaited multicouplers. The control unit consists of a series of high-gain, fixed-frequency, broadband, transistorized amplifiers, all operating in parallel and feeding one trigger circuit. There are 12 channels, each possessing an antenna input, a variable gain control, and a conventional diode detector circuit. The detector outputs are connected in parallel, and each may trigger the alarm unit independently of the others. The alarm indication is a light signal or bell, whichever the operator chooses. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE