The function of drone jammers is to intentionally block or jam with a wireless signal to interrupt communication between a sending device and a receiving device (ie, a remote control and a drone). Traditionally, jammers were used to interrupt enemy communications on the battlefield. The jammer will emit noise at the same frequency, which essentially makes the receiver unable to understand the message being sent, thereby achieving the purpose of interference.
In some countries, wireless interference is used as a sensor device to prevent harmful radio signals from neighboring countries from being received by its citizens. Other types of interference prevent the reception of signals in the same situation, so the blocked part is not aware of the interference equipment being used. Drone signal jammers are designed to interrupt signals in the 2.4GHz and 5.8GHz range, which will interrupt most home WiFi systems, Bluetooth devices and drones operating at 2.4GHz.
The US government has spent $ 17 billion on 50,000 signal jammers, including Warlock Green, Warlock Red, Warlock Duke, Acorn, and others. The US government ’s GPS agency is convinced that commercial aircraft “maintaining alternative navigation methods” can prevent terrorist attacks. The agency said: "The government is currently sending new GPS signals that are more resistant to interference.