Microcontroller › 8051 › reading contacts from sim300 GSM module › As we know for different
As we know for different people they use different kinds of mobile phone signals. Just as the people around you like your friends, your colleagues, your family members and so on, they may use the different mobile phone signals as now there are various mobile phone signals from different companies and of which the frequency bands are also different such as the CDMA, GSM, DCS, PCS, 3G, 4G LTE and 4G Wimax. So in different conditions and circumstances people are in need of the mobile phone jammers that of different frequency bands. But if people are in great need of a cdma jammer via which they can decide the jamming frequency bands what kind of device should they choose? Of course, the adjustable cell phone jammer is the best for them in such condition.