Road Safety (General) Regulations 2019
46Use of radar devices
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46 Use of radar devices
For the purposes of section 79 of the Act, the prescribed manner of use of a radar device is that—
(a) the operator ensures that—
(i) in the case of the Falcon HR, the Raptor RP-1 and the Eagle 3, all of the elements of the digital speed display are illuminated; and
(ii) in the case of all other radar devices, a reading of (888) is displayed on the digital target speed display; and
(b) the doppler audio signal of the radar device is set at a level clearly audible to the operator who may take a reading if the signal indicates normal operation; and
(c) in the case of the HR4, the Falcon, the Falcon HR, the Directional Talon and the Stalker II SDR, the operator activates the device with the device aimed in the direction of a motor vehicle within the operator's field of vision and observes the reading displayed on the digital target speed display; and
(d) in the case of the Stalker Dual DSR, the Directional Golden Eagle II, the Raptor RP‑1 and the Eagle 3, the operator activates the device with the antenna set in the direction of a motor vehicle within the operator's vision and observes the reading displayed on the digital target speed display; and
(e) the device has been tested in accordance with regulation 42 within 12 months before the occasion of its use; and
(f) the device has been sealed in accordance with regulation 43 at the time that it was last tested.