Border defense is an indispensable and important part of national defense. It is a necessary form adopted by the state to effectively exercise its sovereignty and maintain security. Border surveillance is an extremely important issue in military security. Our country has a vast territory, with the total length of land borderlines exceeding 22,000 kilometers. With the further deepening of China's opening-up policy, the volume of inbound and outbound traffic is constantly increasing, and criminal activities such as smuggling and illegal entry are becoming increasingly serious. This requires border defense management departments to carry out tasks over increasingly longer distances. Moreover, the geographical locations of border areas are complex, the border lines are long, border posts, unmanned border stations, on-site areas of entry and exit ports, and other key areas for border surveillance are widely distributed and are relatively far from the monitoring centers. This has made traditional short-distance monitoring unable to meet the needs of video management. Therefore, a long-distance wireless monitoring system, as a high-tech technology means, has become an inevitable choice for application in national defense and border defense management.

       The environment in the border defense areas of Xinjiang has additional special conditions beyond those found in other regions, such as high altitude, low temperature, and long distance. Our digital bridge product TQ-5040G25, as a military-grade wireless product, is fully capable of meeting normal applications under such harsh conditions. A certain border defense unit in Kashgar, Xinjiang, needed to implement wireless broadband coverage and video surveillance in the field area to strengthen border defense management. The installation area is located in an uninhabited area at an altitude of 4500-4800 meters, with constant low temperatures and harsh conditions. To ensure the normal operation of the wireless equipment, the customer conducted high and low temperature tests using samples provided by our company.

       According to the reference standards for equipment environmental tests in the national military standards, after the equipment was stored at -45 degrees for 24 hours, the temperature box was raised to -40 degrees and the equipment was powered on. It then operated continuously for 4 hours, and the 50M packet transmission capacity test was normal. After being stored at +60 degrees for 48 hours, the temperature box was lowered to +50 degrees and the equipment was powered on. It then operated continuously for 4 hours, and the 50M packet transmission capacity test was also normal.

      After testing, the performance of the equipment fully meets the customer's requirements. Currently, the first phase of the project has been installed and set up in the border area of Kashgar.