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Radar Detector Testing and Comparison Report



Updated May 2, 2014

Carefree Highway Radar Test

Long Range Radar Test


Location: Carefree Highway - Morristown, Arizona

The Carefree Highway is a two-lane stretch of Highway that runs from Carefree to Morristown, Arizona, which was memorialized by Gordon Lightfoot’s hit song in 1994.

We performed this test from milepost 2, east to milepost 11, which is a straight, flat roadway.

Radar Test Equipment

  • Ka Band – Stalker ATR
  • K Bank – Kustom Signals Falcon
  • X Band – MPH K-15


Testing Methodology


During testing only one radar detector is powered on to ensure that there is no interference from other detectors, and windshield mounted radar detectors are mounted in the center of the windshield.

During this test, the test vehicle makes three approaches toward the radar gun's fixed location and at the moment of its first alert the distance is marked and measured.

At the completion of the test, the three alert locations are averaged for the final distance published in this review.


Radar Long Range Test


The Hill & Curve Test

Location: - Castle Hot Springs Road - Morristown, Arizona


The location of this test is a curved mountainous road located approximately 12 miles north of Morristown, Arizona.

Radar Test Equipment

  • Ka Band – Stalker ATR
  • K Bank – Kustom Signals Falcon

Testing Methodology

This test would classify as the worst-case scenario test, as the road has a sharp right turn with large hills traversing both sides of the roadway.

The radar testing equipment is located 300 feet south of this blind curve.

During testing only one radar detector is powered on to ensure that there is no interference from other detectors, and windshield mounted radar detectors are mounted in the center of the windshield.

During this test, the test vehicle makes three approaches toward the radar gun's fixed location, and at the moment of its first alert the distance is marked and measured.

At the completion of the test, the three alert locations are averaged for the final distance published in this review.


Spectre RDD Test


Location: Castle Well Airport – Morristown, Arizona


The location of this test is done on a private airstrip located at Castle Well Airport, Morristown, Arizona.

Test Equipment


Spectre III Radar Detector Detector

Testing Methodology


This test is done on a private, paved airstrip, which is 2400 feet long.
During testing only one radar detector is powered on to ensure that there is no interference from other detectors, and windshield mounted radar detectors are mounted in the center of the windshield.
During this test, the test vehicle makes three approaches toward the Spectre's fixed location, and at the moment the Spectre alerts, the distance is measured with a laser gun.

At the completion of the test, the three alert locations are averaged for the final distance published in this review.



Filtering Comparison Test


Location: Highway and City Driving areas throughout Arizona

Testing Methodology


This filtering comparison test is done in real world driving conditions on both the highway and city roadways and the following results are based upon their ability to filter out false alerts.


Radar Detector Filtering Test - Review

About Radar Roy

Radar RoyThis site is owned and managed by "Radar Roy," a retired police officer and certified traffic radar instructor, who is considered a leading expert in the speed counter measurement industry.

To learn more about Roy, read his radar detector reviews or download his free radar detector eBook click here.

Return Policy


Dash Mounted Radar Detectors, Accessories, Mounting Systems: These products come with our 30-day money back guarantee provided that they are returned in resalable condition. This requires that all parts, accessories, warranty cards and packaging are returned.

Installed Products: Any radar detector/laser jammer product that requires installation is exempt from our 30-day return policy if the product is removed from the packaging and/or if the buyer installs and/or attempts to install the product on a vehicle it becomes a nonreturnable product.

This exception includes all laser jammers, installed radar detectors, and the Veil Stealth Coating.