It is reported that the New York Taxi and Limousine Commission is considering a proposal to install cell phone jammer in taxis and limousines to keep drivers away from the phone and pay attention to the road. They intend to use a jammer with a small working range. Due to the limited range of the jammer, the proposal stipulates that passengers can still call from the back seat. The driver certainly objected, claiming that the phone is essential to their work. Obviously, the purpose of this proposal is good, that is, to let drivers not use their mobile phones while driving. Because it is reported that many car accidents are caused by drivers using mobile phones in the car, which affects their attention. And many drivers are used to answering the phone while driving, although it is dangerous. The mobile phone jammer can shield the mobile phone signal and prevent the driver from answering the phone, which is of course good.
For example, mobile phone jammers can interfere with calls. This is because calls require signal transmission, including GSM, 3G, and 4G. It is important to know that the phone number in different places is different. Therefore, we should choose a mobile phone jammer that can accurately shield local phone signals. In addition to mobile phone jammers (corresponding to GSM, 3G, 4G signals), there are also GPS jammers that can shield GPS signals. They can interfere with GPS trackers, GPS navigators, etc. Similarly, Bluetooth and WiFi jammers interfere with wlan signals and accordingly shield WiFi devices, such as wireless networks. UHF/VHF bands (including LoJack) and satellite XM radio jammers can interfere with devices that use these signals.