Encrypted Airwaves? Don't Make Trouble, It's All Clear in My Eyes

It is said that time travel is a technical job, and blasting the system is more like opening a blind box. The National Security Front Scout who died accidentally went to Shanghai during the Anti-Japanese War and became a taxi driver for Xiangsheng Automobile Company. Once out of the car, he accidentally got involved in another little-known intelligence front of the military. What he didn't expect was that the system he revealed was a black and white TV, a very old model. He always thought that a considerate system brought him recreational supplies, but little did he know that what he awakened was actually a secret language system that could capture all kinds of waves in the sky. Capturing sound waves? That's gay! As for electromagnetic breakage, it's no problem! What, multiple encryption? Don't make trouble, in the face of the powerful computing power of the system, all encrypted airwaves are like running naked! This is not over yet, what is even more explosive is that it can also capture a wave with an extremely special shape...