The car GPS signal jammer series are the third generation of green GPS Jammers, which only shield terminal stations to receive GPS signals, and will not interfere with any negative effects caused by the transportation of other electronic communication equipment around. This machine covers various GPS positioning signals (may depend on the strength of satellite signals) on all terminals within a mask range of 2 to 50 meters. All terminals of the GPS jammer use a single output so that the external GPS is positioned within the entire range of the shield. The rated working voltage of this product is 12V-24V, the working frequency bandwidth is 20MHz, and the frequency range is 1560-1580MHz. Remove the GPS antenna installed on the device. Plug into the cigarette lighter socket of the applicable car. The equipment is energized and equipped with indicator lights, and it operates normally. Removing the GPS signal after use will directly interfere with the jammer shield or pay attention to the fact that the speed monitoring platform has not remained stationary. When using the vehicle GPS jammer, you should pay attention to the following points: the shield is a complete antenna, and the antenna and instrument interface have been tightened.