Communications: electrical – Condition responsive indicating system – With particular coupling link
Patent
1984-06-05
1986-07-29
Crosland, Donnie L.
Communications: electrical
Condition responsive indicating system
With particular coupling link
340514, 340515, 340531, 455 9, 455 67, 455154, 455226, 343 65R, G08B 108, H04B 1700
Patent
active
046033254
ABSTRACT:
The invention provides apparatus for evaluating installation of components of a wireless type of alarm system or the like that includes a plurality of satellite stations, each of which includes a sensor and associated transmitter circuitry responsive to the sensor for transmitting an alarm signal at radio frequency, and a central station for receiving the alarm signal and operating an output device in response to the received signal. The installation evaluating apparatus includes signal strength sensing circuitry responsive to the strength of the alarm signal received at the central station, and an RF transmitter responsive to the sensed signal strength for transmitting an indicator signal to a receiver at the installation location of the satellite transmitter device being evaluated, the nature of the indicator signal received at the transmitter site providing an indication of the quality of the RF transmission path between the transmitter and the central receiver.
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Marino Francis C.
McGarrett Douglas
Crosland Donnie L.
Pittway Corporation
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