How does Microwave Detection work?
The Microwave channel is an active channel. The detector transmits an electromagnetic signal and compares the reflected signal from all objects in the protected area. A moving object is identified using the Doppler effect of comparing transmitted and reflected signals. The Doppler signal is analyzed and if it suits the detection criteria it will generate a MW alarm. The microwave channel is very sensitive to movement and has much higher detection capability than the PIR channel. On the other hand – it is prone to false alarms in cases that it is not installed properly (MW not adjusted to the room size) due to the fact that it can pass walls.
