I thought I was going crazy but I figured out something with the SDS100 Scanner. I have the back light set at SET Timer =Open Squelch and KEYPRESS set at 15 seconds, I have been noticing that this set up was only shutting off my screen sometimes other times it would not work at all. I found out the problem was if I have the SDS100 charging by my Computer USB port or plugged into the wall outlet the SDS100 screen will not shutoff, only when I stop charging the scanner will it shut down the Scanner screen for the amount of time. Don't know if anyone else is experiencing this or if only my sds100 scanner, anyone care to try this and let me know.
Steve
Steve