Police Radar Detectors
Police radar measures relative speeds not distance (unlike regular radars which usually measure distance and direction). If the police car is moving, its speed is taken into account. A novel frequency scheme for a police radar detector enables improved sweeping of the X, K, Ku and Ka radar bands. The novel frequency scheme requires two initial frequency conversions for detection of the X, K and Ka radar bands and a single initial frequency conversion for the Ku radar band with single initial frequency conversion being enabled by disabling the second mixer.
In addition, noise at the second IF Frequency is reduced to prevent this noise from feeding through the second mixer into the second IF amplifier. During the Ku band sweep, the second mixer is bypassed and shunting of signals at the second IF frequency is disabled so that these signals enter the second IF amplifier.
Police Radar Detectors Reviews
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