Beltronics BEL975R Owners Manual - Page 8

Since Radar signals travel in a straight line, this Radar encounter potentially offers maximum warning range. Once this signal is received, the initial warning consists of the X, K, or Super Wideband Ka audio and visual alerts and the simultaneous illumination of one or more of the LEDs in the four-LED display. The actual number displayed will depend upon the strength of the signal received. As the strength of the Radar signal increases, the audio alerts become more rapid and more LEDs in the display will illuminate. Assuming the Radar signal remains uninterrupted, the audio and visual alerts will clearly indicate a "weak" signal becoming stronger as you drive closer to the Radar source. Remember, when the police Radar source is moving toward you, the Radar signal strength will increase much more rapidly than if you are approaching a stationary source. 2. Stationary Radar aimed around a corner. 3. Stationary Radar concealed by the crest of a hill aimed in your direction. Radar signals travel in a straight line and do not pass through earth. Consequently, police Radar aimed at the crest of a steep hill cannot be received until you are at or near the top. Warning time may be minimal (as in situation #2) since a strong signal is not present until you are near the crest of the hill. At this point, you may be nearly in the police officer's line of sight. When cresting a hill, a weak initial alert followed by very quickly by a full alert is typical. This alert pattern requires prompt attention. 4. Moving Radar behind you, traveling in the same direction. Under this circumstance, reaction time is considerably reduced. Since the Radar signals are transmitted across your line of travel, there is generally no signal available to receive until you are relatively close to the source. Once an alert is received, expect the strength of the signal to increase very quickly. Advanced warning in this situation may be reduced. 14 Police Radar signal transmitted from behind your vehicle can be received when reflected by objects in front of you such as large signs, bridges and trucks. As you drive, the size and configuration of these objects are constantly changing, causing the strength of any reflected Radar signal received to vary. A strong, uninterrupted alert indicates the patrol car is close 15 behind.