Other Speed Detection Systems; Radar Detector Detectors - Whistler 1540 Manual

SPEED MONITORING TECHNOLOGIES

Other Speed Detection Systems

Several techniques other than radar or laser are used to mea-
sure vehicle speeds. When these methods are being used, no
detector can provide a warning. These techniques include:
• Pacing - A patrol car drives behind you and matches your
driving speed.
• Vascar/Aircraft - The time it takes a vehicle to travel a known
distance is measured.

Radar Detector Detectors

The Interceptor VG-2, or simply VG-2, is a microwave receiver
used by police to detect signals radiated by the local oscil-
lator of a radar detector. Because its purpose is to identify
persons driving with radar detectors, the VG-2 is known as a
"radar detector detector".
The VG-2 is the primary tool used by the police to identify
radar detector equipped vehicles. If caught, drivers risk los-
ing their radar detector and receiving a fine. In addition, in-
stant-on radar is almost always used in combination with a
VG-2, leaving unsuspecting motorists vulnerable to receiv-
ing two tickets — one potentially for speeding, the other for
possession of a detector.
Having a radar detector capable of detecting the VG-2 alerts
you to the presence of a speed trap and preserves your ra-
dar detector investment.
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