Some answers to GPS jammer questions in Perfectjammer
One of our most popular signal jammers, a small car GPS jammer that plugs into your car's cigarette lighter, is small and inexpensive.
Based on questions we've gotten from customers, here's a note on what we call "GPS jammers", which may interfere with GPS positioning navigation systems, but may not block some other navigations.
Network location (cellular signal location) navigation. For this, you need a cell phone jammer.
Dual-mode navigation: network positioning (cellular signal positioning) navigation + GPS navigation. For this type of navigation, you need a GSM GPS jammer.
In order to detect the function of the GPS jammer, please download the GPS signal detection software to test the shielding effect, or open the car navigation function test.
In short, if you want to get stuck on the navigation device. You should know what signal the device is using. In general, most of them use GPS, of course, others use cell phone signals. So use GPS phone jammer need to be more careful, it can intercept most navigation devices.