Last time we had a topic, why not call a gas station, now let’s focus on the subway.
The subway density of mobile phone users is so great that almost all passengers will play mobile phones during the training process. The solution forms a large signal at each subway station to interfere with the magnetic field, which may block all program control instructions, which is a great risk and threat to the operation of the subway. But I don’t think it is possible to obtain a radio communication service license because it will reduce profits. In fact, the Shenzhen Metro was still rejected by the broadcast. They used a good measure-the best signal portable jammer. In subway trains, running signals in mobile phones is the main job of interfering signals.
In early 2012, the Shenzhen Metro Group discovered the problem and applied it to the Shenzhen Traffic Management Bureau, 3G and WiFi stop signals on all Shenzhen subway lines. As the system was attacked by unknown sources, many lines were emergency braked underground. We must activate the automatic protection function and we cannot drive the operation too quickly. The incident caused public concern over the safety of subway operations.
After research, they found the real reason. Passengers on subway portable Wi-Fi channels that can use the same information will interfere with each other. We know that most smartphones can be configured to send WiFi devices. Although the CASCO signal system is the most advanced CBTC company, the safest and most efficient is that it is difficult to say that you know the speed of this highly developed technology, but the CBTC system may bring new problems to new wireless transmission equipment.
Reverse signal jammer, one -8 antenna 28.5W power Wifi GPS VHF UHF LoJack 3G 4G full band adjustable signal blocker, disabled, cheap GPS jammer and WiFi signal. Most smartphones use 3G and 4G networks and Bluetooth Wi-Fi. If you die and perform basic operations, calls will be barred, which is a direct way to ensure the safety of the CBTC system. In fact, it is necessary to always obtain authorization from the relevant authorities, and in any case, it is possible to solve problems that are not the activities of wireless telecommunications companies.