distance limit of sniffer device for detecting lost mobiles
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For SNIFFER mobile loss detection plays a vital role. The sniffer device has to be precisely designed and the size must be reduced to facilitate mobility for detection purposes. The device can be called as a mobile base station which includes Sniffer Base station, Unidirectional Antenna, tracking software. The sniffer is a small base station that includes the transceiver section. It must operate at a frequency that is very different from the frequency of the current cell in which the detection operation is being carried out. The directional antenna is an important device that will be designed and used as it plays an important role. There are certain boundary conditions that have to be qualified for the identification of lost mobile as the power of the mobile should be good enough, the mobile phone should not be in the shadow region, but nevertheless this method using modern technologies and devices. Our role seems to be a little more expensive for initial setup, but the cost is gradually reduced when efficiently and efficiently used for the purpose of detection.
One of the most interesting things about the cell phone is that it is really a radio an extremely sophisticated radio, which uses some frequency band that has basic operation similar to ordinary cordless phone. Mobile cellular communication has been appreciated since its inception in the early 1970s and advancement in the VLSI field has helped in designing less power, smaller size but efficient transceiver for the purpose of communication. But however, the technology has yet to respond to the loss or misplacement of the lost mobile phone that is increasing significantly. In this article we discuss the problem and the likely solution that could be done. The IMEI number is a unique number that is embedded in the mobile phone whose main purpose is to block calls that is made by unauthorized person once the mobile is reported as stolen, but here we use it effectively for the purpose of detection.
Mobile detector circuit diagram :