Does this think work? Do you have to place it right by the jammer heads to make it work? Can you test how well your vehicle jammer coverage is?
If you want to test the punch though on your car you need to get something like this....http://www.opticsplanet.net/osprey-l...omet-emc4.html
Radar Detectors-V1 & BEL v995
Laser Jammer-Laser Interceptor Quad
GPS Camera Locator-Cheetah C100
GPS Nav-Garmin nuvi w/Trapster
CB Radio-Galaxy DX-949 w/Wilson 500