I had the 904 system installed on my vette yesterday, and by the chance of god my long time mechanic was able to have a friend who was a police officer come over with his Ultra Lyte laser system and check the system after installation.
I can't give exact distances, but a very good estimate would be 300-600 FT.
The officer was calling out my speed the whole time as if the system wasn't working yet in the car I was lit like a Christmas tree..
The 965 let me know when I was getting hit in the front as well as the 904 and in the rear the 904 let me know I was getting hit, but of course the detector did'nt pick it up.
The system I purchased on Craigslist for $105 brand new in the box and I still have the warranty card, plus a $150 install which truly looks aweosome. I just am wondering is the system useless or is it just to outdated for todays laser systems. i was even thinking if it's possible to use different heads on the system to make it up to date if Bel still makes any.
I know they discontinued making the 904-905 model, but on their website show the Escort ZR4 system which appears to use the same heads I have. If that won't work maybe a pair of Blinder heads..Any suggestions will greatly be appreciated from this rookie on jamming.