The sniffer is a small base station. Transceiver section is seen in the sniffer. The frequency of the current cell and the frequency of the sniffer is different in which the operation of detection is being carried out. Some of the main important things are the frequency that has to be generated by the transceiver section is around 900MHz range which is a VHF range and it is necessarily to design the oscillator circuit for that frequency range. While designing the circuit of 900MHz frequency, it is important to provide cooling to the circuit. In the design of the sniffer, proper design of base station is important. Low power transmitter is seen in mobile phones and base station.. This implementation helps in the process of reducing the interference of the device and with the devices that are in the other cells.