Communications: directive radio wave systems and devices (e.g. – Radar ew
Patent
1989-04-19
1990-06-19
Barron, Jr., Gilberto
Communications: directive radio wave systems and devices (e.g.,
Radar ew
342 53, G01S 7282, G01S 1386
Patent
active
049357425
ABSTRACT:
An autonomous radar transmitting system transmits radar signals which simulate the presence of a police-manned radar station. A controller runs pseudo-randomizing programs to select the width of a radar pulse transmitted as well as the time lapse between subsequent pulses. The radar output of the system is therefore sufficiently random to prevent a detecting circuit from identifying it in the time it takes for a motorist with a radar detector to reach the radar source. This system is battery powered and a photovoltaic panel is provided to recharge the battery, thus giving the system a long lifespan. Also provided is an infrared detector through which infrared signals may be input to the controller. Thus, external control is provided without making the system susceptible to tampering or vandelism. Most of the electrical components are enclosed in a weatherproof casing capable of being mounted in a number of discrete, convenient locations. The casing includes a drainage hole with a downwardly extending tube for allowing the drainage of condensation buildup within the casing.
REFERENCES:
patent: 2521683 (1950-09-01), Barker
patent: 3895227 (1975-07-01), Murray et al.
patent: 4295131 (1981-10-01), Bonori et al.
patent: 4435699 (1984-03-01), Tacussel
patent: 4757304 (1988-07-01), Rho
FCC Report No. 4872, "FCC Rules Out Drone Radars, Warns Against Their Use", May. 1978.
Newscope, "Speeders Beware: The Cops can Fake You Out", Electronic Design 26, Dec. 1977, p. 19.
"Highway Radar Eludes Detectors", Electronics, Sep. 1977, pp. 45-46.
"Antennas at X or K Band Frequencies", M/A-COM GaAs Products, Inc., product data sheet, pp. 1-4.
ENR article, "Barriers Remain to Safe Work Zones", Howard B. Stussman, pp. 1-2, Apr. 7, 1988.
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