A small shoebox sized device that when wired to a radar system can detect the IFF (Identification Friend or Foe) indicators used by ALL military radar systems to distinguish friendly vehicles from unidentified or hostile ones. While the indicator signals & frequencies may vary from group to group, this device can quickly scan the frequencies & signals emitted by other vehicles 'radar' & quickly mimic them - in effect disguising ones vehicle as that of an enemy which would greatly facilitate infiltration, avoidance of hostile attack, or even greatly improve a possible ambush of enemy forces.