This dual-control (adjustable + remote control) fixed frequency jammer can accurately lock the CDMA, PCS, 3G, and GPS L1 frequency bands. The knob can be used to fine-tune the interference intensity of each frequency band one by one, and the customized solution ensures that only the target signal is targeted.

https://www.thejammerblocker.com/t-us-a04-desktop-cell-phone-and-gps-disruptor-jammer-10w/