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Evaluation apparatus

  • US 4,603,325 A
  • Filed: 06/05/1984
  • Issued: 07/29/1986
  • Est. Priority Date: 06/05/1984
  • Status: Expired due to Fees
First Claim
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1. 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 remote from said satelite stations for receiving the alarm signal and operating an output device in response to the received signal, the installation evaluating apparatus including signal strength sensing circuitry responsive to the strength of the alarm signal received at said central station, and an RF transmitter responsive to said 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 said indicator signal received at said transmitter site providing an indication of the quality of the RF transmission path between said transmitter and said central receiver.

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