GPS L4 1250MHz - 1280MHz
At present, the frequency range of GPS satellite signals is mainly 5, L1 - L5, among which GPS L1 L2 L3 is mainly used in the field of life, and belongs to the type of civil signal frequency band, such as our satellite positioning and navigation of mobile devices such as mobile phones and personal mobile phones. The GPS L4 L5 signal band is mainly used in military applications because of its high accuracy. So GPS L4 frequency 1250mhz - 1280mhz will be blocked by military GPS jammer.