Active Radar Jammers
Currently, there is only one company that markets active radar jammers, it is the Scorpion Ultimate radar jammer.
A few years ago Tiger Lily Products sold an active radar jammer that jammed X and K bands only, their model was called the Phantom RCD XP. Tiger Lily is working on a new model, but it is unknown when it will be released.
The punch through distance (distance away at where the police officers radar gun will begin receiving your vehicle) is as follows for the Phantom RCD XP model.
The company that actually manufactured the Phantom RCD XP was Scorpion and now has come out with their own X, K and Ka Band radar jammer. The new model is called the Scorpion "Ultimate" Ka jammer.
This new model was evaluated and tested by Speed Measurement Laboratories on January 6, 2005 and then again with Radar Roy on January 29, 2005.
This is a three part system, consisting of the main control module and two modules that contain the antennas for the unit. The antenna modules could either be dash mounted or mounted inside the front grill. Both of these antenna modules are quite large, and if you choose to dash mount, it would take up most, if not all your dash area.
The results clearly show the jamming efficiency of the Scorpion Ultimate radar jammer. This is also the first device that SML or Radar Roy tested that could jam Ka police radar guns. At 500 feet in the case of the three Ka radar guns, the guns reflected signal was more powerful than that being transmitted by the device and is consistent with the "rule of squares" of measuring the strength if the reflected radar gun signal. The continual variation of the Doppler audio of the radar guns further confirmed the device was indeed jamming the radar guns.
Costly Radar Jammer problems
You could be fined thousands of dollars, you could be jailed and/or be placed on federal probation.
It is a federal felony to possess, operate or sell these jammers.
Because of this, Radar Roy does NOT offer nor recommend the Scorpion radar jammer.
Also there have been numerous complaints posted on RadarDetector.net by dissatisfied customers, because of poor product support and frequent calibration problems.