Whistler 1560 Manual page 17

When Safety Radar is detected the audio alert is geiger
counter-like and 1 of 5 letters illuminates.
"W" confirms detection of a weather advisory such as
"H" confirms detection of a highway hazard such as an
"C" confirms detection of a highway construction hazard
such as a work zone area, bridge closed, etc.
"T" confirms detection of a travel related advisory such as
"M" confirms detection of a fast/slow moving vehicle such as
police in pursuit, oversize vehicle ahead, etc.
SAFETY RADAR ALERTS
2
W H C T M
Weather Advisory
heavy fog, high wind, etc.
Highway Hazard
accident, dangerous intersection, etc.
Highway Construction
Travel Advisory
congested traffic, rest area ahead, etc.
Moving Vehicle
16