Obd Blocker Beidou Gps Jamming Detection White Picture

Common problem 1. Test whether the product is effective？ Turn on the phone navigation, enter the target area, then drive to see if the mobile phone is moving。 2.Why not shield individual cars and locators? Without shielding the original vehicle navigation of high-end car, the satellite receiving antenna may be on the roof of the car, the interference wave can not penetrate the metal car shed, resulting in non-interference. The location of the base station with mobile phone can not be interfered by different factors, but the location error of the base station is several hundred meters, more than a few kilometers. But it does not affect the use of this product.