3 Bongs?

[justmegt]

I just travelled to Luton Airport and back. My GO710 gave out 3 bongs at 2-3 locations. Does anyone know what they were for?

 

[mikealder]

Could be the built in Safety camera alerts or did you creep over 75MPH on the motorway as that will trigger the over speed alarm (if set), another reason could be down to the map section having the wrong road speed limit applied thus triggering a warning for overspeed even if you are within the limit, the Southern end of the M61 does this, it drives me up the wall so in the end I turned the overspeed alarm off as I don't need it - Mike