There have been many disputes about what bands of radar that the NJ State Police use. Well I went straight to the horse's mouth and emailed them about a month ago. I found this response in my mailbox today:
I am Sgt. Stephen Ritter of the Research and Anaylsis Unit of the New
Jersey State Police (NJSP). I am in receipt of your e-mail that you
sent to the State of New Jersey in reference to radar units.
Currently there are three unit being used by the NJSP to measure the
speeds of motor vehicles. The MPH K-55 is the main unit used and is in
every marked unit that is assigned to a road station. The LTI Marksman
20/20 is another unit used which as you know laser technology. The
third unit used is also a laser unit and is the LTI Ultra Light.
We are looking into other radar units at the time. They are MPH Bee III
and Stalker units which are both directional radar using K band and are
digital. After testing both of these units I can see that they are well
suited for the type of work we do. The process of changing over is a
monumental task and should take about a year or two.
Thanks for your e-mail and if I can be of any other assistance you can
contact me. You have my e-mail from this communication and all my other
info is listed below.
Sgt. Stephen L. Ritter #5509
Research & Analysis
609-882-2000 Ext. 2237