Electronic warfare (EW) experts at Northrop Grumman Corp. are moving to full-rate production of common open-architecture RF jammers for infantry, land vehicles, and fixed sites to protect U.S. and allied warfighters from radio-controlled improvised explosive devices (IEDs).
When the phone works, it is within a certain frequency range. The cell phone and the base station are connected by radio waves, and the data and sound transmission can be completed by certain baud rate and modulation mode. For this kind of communication principle, the cell phone jammer is at a certain speed in the working process to the high end of the channel to the high-end scanning. The scanning speed can be used to generate random interference in the receiver’s signal. The phone can’t detect the normal data from the base station, and the cell phone cannot be connected to the base station. Mobile phone performance is search network, no signal, no service system and other phenomena.
On a legal standpoint, the DroneDefender seems to be in a grey area. According to FCC regulations, federal law prohibits the operation, marketing, or sale of any type of signal jammer, including devices that interfere with cellular and Personal Communication Services (PCS), police radar, Global Positioning Systems (GPS), and wireless networking services (Wi-Fi).
In the information age, mobile phones seem to have become a necessity for life, and nowadays it is not uncommon for students to bring mobile phones to school. Although small and medium-sized schools around the world are not allowed to carry mobile phones while they are in school, the phenomenon has repeatedly been banned. In recent days, a high school in the provincial capital has been forced to turn off the lights in the evening and turn on the “high-tech” — mobile phone screening device. I didn’t think that the kind act attracted some parents’ complaints. One was that they were afraid that the screening instrument was not good for the students’ health, and the other was that they would lose contact in the middle of the night. The school was forced to stop using mobile phone shielding.
Officials of the Naval Air Systems Command at Patuxent River Naval Air Station, Md., are asking Insitu to provide six ScanEagle UAVs, support equipment, training, site activation, technical services, and data for the Philippines. Insitu is a subsidiary of the Boeing Co.