It basically reads "error" untill u get close then it picks you up ....SO u still need your eyes and to listen to the detector picking up the radar to slow down before he picks up .....there are websites that have done research on the exact distance for each detector

http://www.youtube.com/watch?v=rmSAmEbJ3ig

A friend of mind has the srx in his viper and we were traveling from oklahoma city to dallas... he also has the laser veil on his headlights... we came over a hill on a deserted road well over the limit and were suprised to see a trooper with his laser gun.. he could not pick us up untill we were close... at one point he even looked at his gun and shook it before he re aimed again... we waved as we passed by and had a good chuckle ...

In texas laser is very common in the big cities but most of the rural hwys are still radar with an occasional laser