It works similarly to a highly sensitive radio tuned to the frequency emitted by the radar.
Alert Road, connected to an antenna Shadow-Stealth, works like a spectrum analyser on the frequencies selected by the user, sending an immediate response to the processor when a microwave signal that could be a radar is detected.
However, the nature of these waves (linear beam) and their low power make them difficult to detect in advance in certain situations.
It is important to understand that “if the beam does not bounce off of an object towards the detector, it cannot be detected it in advance”.
In fact, imagine a beam of light from a low-power, highly concentrated torch. If the beam is aimed at us horizontally, in our direction, we will only be able to detect it when we pass through it (too late).
Fortunately, the radio beam is aimed at the road (in the arches) or nearly horizontally, but to the side (on the tripods). This makes it possible for the beam to bounce off of slight irregularities on the road, guardrails, vehicles ahead of us, etc.
These small bounces can reach the microwave receiver and alert us to the presence of the radar well enough in advance. It is clear, then, that the road conditions, location, installation and traffic influence decisively on the alert distance.
In general, mobile radars are detected well in advance, followed by tripod-mounted radars. The arch-mounted radars are detected with the least advance notice, due to the characteristics of the beam.
However, the combination of a detector with a GPS alert system (Alert Road) is capable of resolving these inconveniences successfully (500 m in advance), making it the ideal and most effective complement.
Use Alert Road to increase your concentration while driving, not to gain time on your journeys.