Radio Shack 22-1680 - Manual (Page 18)

18
RECEIVING AND IDENTIFYING
ALERT SIGNALS
Your detector gives different audible and visual alerts for each
signal. In addition, the alert tone pulse rate increases with sig-
nal strength and the detector displays a digit from 1 to 9 to indi-
cate the signal strength (1 is weakest and 9 is strongest).
When your detector senses instant-on radar, it sounds an
intense, 3-second tone and displays
PULSE .