This is an email I received from Escort in response to the concern of possible Ku guns being used in the US (there are some posts here in the forum that state Ku is being detected while passing an actual cop):
*** It is good to hear from you! The POP radar guns are very new. Our research indicates there are fewer than 600 of these units nationwide. That represents .005% of all the traffic radar and laser systems used. The POP guns are not a major threat at this time, but searching for the POP mode will result in an increase in Ka false signals that come from other radar detectors that are not properly shielded like ours.
The majority of our customers will not need this feature and will want to reduce the number of false signals whenever possible.
The FCC authorized the Ku-Band for use in the US over ten years ago. We continue to hear “rumors” about the introduction of Ku equipped radar guns, but so far this has not happened. We have recently heard of a manufacturer producing a prototype Ku-Band gun, but so far nothing is being used for traffic monitoring. As with all other threats and new technologies, when this becomes a threat in the US we will provide a solution. Our Passport 8500, 8500 X50 and the Solo S2 all have flash chips that can be software up-dated if the police introduce a new band or frequency of radar or laser. At this time there are no new police frequencies in the US, so no up-date is required.
Thanks for your interest in Escort!*****
I then replied to the email and told him that there have been actualy Ku detections according to various posts on various forums. This is the reply I got:
*** The presence of Ku signals is not a concern for the purposes of traffic or speed control. Police in the US do not sue Ku-band. Many frequencies exist in the real world. The trick for a radar detector is to eliminate as many false alerts as possible.
What do you guys think?