Here is a simple RF bug detector that will help you detect spy bugs and can operate up to 2 GHz. Below are some essential things required for this circuit: to cover a large frequency band; make a ...

An ordinary RF detector using tuned LC circuits is not suitable for detecting signals in the GHz frequency band used in mobile phones. The transmission frequency of mobile phones ranges from 0.9 to 3 ...

Mobile Phone Detector simultaneous detects four bandwidths (GSM, DCS, CDMA and 3G) transmission signal. Each band is designed with individual detection circuit for high sensitivity and consistency.