Since the area covered by the mobile phone blocking program is 50m to 60m, these two blocking programs will be covered. This will prevent the phone from making or receiving calls. This will prevent criminals and criminals from keeping in touch with their associates to carry out activities abroad.
The GSM jammer must only be destructive to the downlink of the cellular receiver, and must generate a sufficiently strong carrier frequency band to prevent the cellular phone from logging into the data channel. This may mean that no external antenna is required, thereby limiting potential interference to most neighboring cell sites. If there is a base station nearby, you can consider using individual rules to restrict or prohibit facilities from owning and operating interfering equipment. Potential interference can be further controlled by using leaky coaxial cables instead of distributed antenna systems.