Eagle 3

Revolutionary New RADAR

Revolutionary New Radar

The Eagle 3 is the first RADAR to provide a method to independently verify the Doppler patrol speed without an electrical connection to the patrol vehicle. The patented Wireless Speed Sensing has an integrated antenna that utilizes satellite signals as an independent speed source to verify the patrol vehicle’s Doppler ground speed.

Offering front and rear scan mode, the Eagle 3 is the smallest moving Doppler RADAR on the market. The Eagle 3 introduces a better method of dual antenna operation that eliminates the confusion of a five-window RADAR presentation with two Doppler tones. The Eagle 3 with Scan Mode enables both the front and rear antennas to be active at the same time. Scan Mode presents target speeds and Doppler from one target zone, front or rear, depending on which zone has the fastest target present.



1.5”H x 5.2”W x 2.3”D (3.8cm x 13.2cm x 5.8cm)


0.6lb (0.3kg)


Stationary ±1 mph (±1km/h)
Moving +1/-2 mph (+1/-2 km/h)


Ka-band 35.5 GHz ±100 MHz
Two-piece, Directional Moving / Stationary, Doppler RADAR system
Tuning Forks
Stamped with “KSI”, frequency band, speed, units of measure, and unique serial number
Electronic Tuning Forks
Crystal-controlled oscillator produces a very accurate frequency and stable magnitude electronic Doppler test signal
System Accuracy
Stationary ±1 mph (±1 km/h)
Moving +1/-2 mph (+1/-2 km/h)
Operating Voltage
9.0 to 16.5 VDC, 400 mA (Max.)
Over Current Protection
Automatic resetting protection devices on power lines of processing unit, antenna, and remote control
Electronic Components
100% solid state, integrated circuits, Digital Signal Processor, and micro-controllers
Operating Temperature
-22°F to +140°F (-30°C to +60°C) 90% relative humidity at 37°C, non-condensing
Display Type
Field Sequential Color (FSC) Liquid Crystal Display (LCD) with capacitive touch screen. Edge RGB LEDs
Display & Processing Unit
H 1.5” (3.8 cm) x W: 5.2” (13.2 cm) x D: 2.3” (5.8 cm) Weight: 0.6 lb. (0.3 kg)
Antenna Unit (Ka-Band)
H: 2.7” (6.9 cm) x W:2.7” (6.9 cm) x D: 3.8” (9.7 cm) Weight: 0.6 lb. (0.3 kg)
Wireless Remote Control
L: 5.1” (13.0 cm) x W: 2.0” (5.1 cm) x H: 1.0” (2.5 cm) Weight: 0.5 lb. (0.2 kg) (with 2AA batteries)
RADAR events log
65,000+ events
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Crystal Clear Display

With a bold, full-color touchscreen display, the Eagle 3 is clearly visible regardless of the ambient light.

The Eagle 3 offers one, two, three and five color options, and will change colors to display the front and rear targets.

Electronic Tuning Fork With Advanced Fork Test

The Eagle 3 is the first RADAR to offer an electronic tuning fork in the remote control. The Eagle 3 electronic tuning fork along with the Advanced Fork Test conducts a comprehensive test on two antennas in less than 20 seconds.

Optionally, the Eagle 3 can require the user to conduct a successful test before placing the RADAR system in service.

RADAR Events

The Eagle 3’s events log stores locked target data, fork tests and GPS marked location to internal memory which is easily downloaded with a PC utility.


  • Front and Rear Scan Mode
  • Fan noise & interference learning
  • Wireless Speed Sensing
  • Advanced fork test with optional mandatory test
  • New Electronic tuning fork
  • Certification management with optional lock-out on expiration
  • DuraTrak™ target tracking bars QuikTrak™ one button operation
  • Directional KA Antennas

Eagle 3
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  • The Eagle 3 remote control with electronic tuning fork uses a crystal-based oscillator and a microwave mixing diode to produce a very precise and stable electronic signal like that of a traditional tuning fork. The RADAR sees no difference between the two methods and either the electronic fork or a traditional mechanical tuning fork may be used to test the Eagle 3 RADAR. A traditional fork rings at a particular frequency that the RADAR processes as a Doppler shift. A tuning fork is not ringing at 35 MPH, otherwise you could use the same fork to test a K-band or a Ka-band RADAR antenna. When you ring a tuning fork, the fork oscillates at a particular frequency that is seen by the radar as a Doppler shift for a particular speed for the particular frequency band of operation by the RADAR antennas.


  • The Eagle 3 remote control produces the same type of signal which is oscillating at a particular frequency that is processed by the radar as a Doppler shift. A very nice benefit of the Eagle 3 electronic fork signal is that it produces a more consistent signal. For example, when you ring a fork too hard, you can produce harmonics which can result in bad speeds during the fork test. A traditional fork also dampens over time (the fork stops ringing). The oscillator in the Eagle 3 remote produces a consistent signal that doesn’t change with time and that does not produce harmonics.

  • The Eagle 3 remote control is using a quartz crystal as a time base. One benefit is that there is little to no movement of the frequency due to temperature extremes. That is not the case for a traditional fork which can fluctuate greatly due to low or high temperatures. The electronic fork signal tolerance is also much tighter than a traditional tuning fork. That means that the electronics fork is more accurate and does not vary with temperature or time.

  • When certifying a mechanical tuning fork, a Service Technician uses a microphone, an amplifier, and a frequency counter to conduct the test. The microphone and the amplifier are taking the acoustical signal produced by ringing the tuning fork and transforming it into an electrical signal that is measured with the frequency counter.


  • The Eagle 3 electronic fork is producing the same electronic signals which do not need to be transformed in order for the frequency counter to analyze them. Again, the mic & amp take an acoustically signal (fork ring) and transform it into an electrical signal. The electronic fork is already an electrical signal and does not require transformation. This certifies that our electronic fork is actually much easier than a traditional fork.


  • To certify an Eagle 3 remote control, you can eliminate the microphone and the amplifier and test the electric fork signal directly with the frequency counter. Each remote control has a unique serial number and can be certified just like a tuning fork.

  • Another RADAR manufacturer’s five (5) window RADAR system with simultaneous front and rear active antennas can present up to five constantly changing speed measurements and two Doppler tones – one Doppler tone from each antenna. The primary issue with the five-window RADAR presentation as described by operators is that it presents too much information and is too confusing. The legal issue with a five-window RADAR presentation is that it is not humanly possible to conduct the prescribed method of target tracking on both front and rear target zones at the same time. The Eagle 3 with Scan Mode enables both the front and rear antennas to be active at the same time. Scan Mode presents target speeds and Doppler from one target zone, front or rear, depending on which zone has the fastest target present. The result is a better method of two-antenna operation that truly supports an officer’s required target tracking.


Finding the right mounting option for your car is essential. Luckily, the Eagle 3 comes with a wide range of choices to ensure that it is mounted securely and safely in your car.

It’s awesome! If it was a fighter jet, it would be an F22!

Lt. Douglass, Harris County Sheriff’s Office

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