DICKEY-john Products
div

Radar II

The most accurate ground speed sensor

Radar II

This top-of-the-line ground speed sensor delivers the truest velocity measurement available at mounting heights over 6 feet.

  • Installs easily
  • Views actual ground surface for accurate speed measurement
  • Can be mounted to look forward or backward from vehicle
  • Velocity range 0.33-66 mph (0.53-96.6 km/h)
  • Mounts at 35±5° angle and at least 24 in. (610 mm) height from target surface (mounts anywhere from 2 to 8 ft. high)
  • Variety of factory output frequency settings available
  • Sleek design—4 x 4 x 12.25 in. (10 x 10 x 31.1 mm)
  • Weighs only 4.5 lbs. (2.05 kg)
  • Achieves velocity errors of ±1-3% through in-field calibration

Product support

Locate a distributor

Enter your zip or postal code to find the DICKEY-john distributor nearest you.
For more detailed results, narrow your search by miles.

Zip Code/Postal Code: (required field)
Within Miles:
 

Outside North America? Locate a distributor worldwide.

Downloads

To download files, right click the link and select "Save File" or "Save Target As."

You must have Adobe Reader in order to access PDF files. Download Adobe Reader.

Technical Information

Velocity Range0.53 to 96.6 km/hr (0.33 to 66 MPH)
Accuracy‡True velocity errors of:

  • <±5%
    • 0.53 to 3.2 km/hr
    • (0.33 to 2 MPH)
  • <±3%
    • 3.2 to 107 km/hr
    • (2 to 67 MPH)
Response, Output Speed<200 milliseconds lag for "combo" filter selection; [dv/dt =6.4 km/hr/sec (4.4 MPH/sec)]
Turn ON/OFF Delay<305mm (12 inches) distance traversed,typical
Footprint, TargetElliptical, 305mm (12 inches) major axis [at 601mm (24 inches) mounting height]
Mounting Angle35 ±5° depressed from horizontal [from target surface]
Mounting Height457 to 1219 mm (18 to 48 inches) 610mm (24 inches) nominal [from target surface]
DC Power Requirements+Vbatt (unregulated battery voltage)
+9 to +16 VDC @ <0.6 Amp
Output Signal CharacteristicsVOH = (+Vbatt - 1.5 VDC) - 1.051 (IOH);
VOL < 0.7 VDC @ IOL <6ma;
IOSS (Source) = 13 ma [+Vbatt = 16 VDC];
IOSS (Sink) = 25 ma [+Vbatt = 16 VDC];

where:
  • VOH
    • High level output signal voltage in VDC
  • VOL
    • Low level output signal voltage in VDC
  • IOH
    • High level output source current in ma
  • IOL
    • Low level output sink current in ma
  • IOSS (Source)
    • Maximum output source current for output short to ground
  • IOSS (Sink)
    • Maximum output sink current for output short to +Vbatt
Output FrequencyFactory selectable options:

  • 34.80 Hz/Km/Hr (58.94 Hz/MPH)
  • 26.11 Hz/Km/Hr (44.21 Hz/MPH)
  • 16.32 Hz/Km/Hr (27.64 Hz/MPH)
  • 10.06 Hz/Km/Hr (17.034 Hz/MPH)
Output Response TimeFactory selectable options:

  • Slow/fast combo
  • Slow
  • Fast
  • Superfast
Output Stage CharacteristicsTransient/short protected NPN transistor;

ZOH = 1051 ohms;

ZOL = 63 ohms;

where:
  • ZOH
    • High level output source impedance
  • ZOL
    • Low level output sink impedance
Microwave Frequency24.125 GHz ±50 MHz (except the United Kingdom which is 24.300 GHz)
Microwave Power Level5mw, nominal
Overall Size10 x 10 x 31.1 mm (4" x 4" x 12.25")
Weight2.05kg (4.5 lbs)
Agriculture Environmental RequirementsProduct is immune to reverse polarity, EMI and electrical transients such as load dump, alternator field decay, inductive load switching, etc.

Operational temperature: -40°C to +85°C. Environmentally durable, i.e., not affected by chemicals, dust, salt spray, rain, wash, and mechanical shock or vibration.

Reference: Dj Product Specification and DJ Environmental Specification - Class I [Instrumentation requirements for critical control systems]
ConnectorAmp 206429-1
Pin 1BlackGround
Pin 2GreenSignal Out 0-12 VDC
Pin 3Red+12 VDC Battery
Pin 4N/ARadar Presence

Note: Pin 3 and Pin 4 are jumpered at the connector.
Matching ConnectorAmp 206430-2


†Extended range available upon request.

‡ Basic Sensor Accuracy (Overall Instrumentation System velocity errors of ≤ ±1-3% can be achieved through in-field system calibration)



Specifications Subject to Change Without Notice


div

DICKEY-john Logo Home | About Us | Contact Us | Site Map | Employment | DICKEY-john Europe | Terms and Conditions | Extranet
Copyright 2008 DICKEY-john Corporation. All rights reserved.
Use of this web site signifies your agreement to the Terms of Use.

Pixies