User Manual
3
B. PHYSICAL CHARACTERISTICS 
  Connector:  8 Pin Circular Weather tight 
  Physical Size:        Weight = 3.0 lb. (1.36 kg) 
 Depth = 2.5" (6.4cm) 
 Width = 6.0" (15.2 cm) 
 Height = 8.75" (22.2 cm) 
C. MICROWAVE CHARACTERISTICS 
The DS4 unit has separate transmit and receive antennas. The transmit antenna has a broad beam 
width and illuminates targets in a wide field. 
  Operating Frequency:      K band: 24.15 GHz 
 Modulation:  Square wave 48.25 KHz., +/- 100 KHz deviation peak 
  Microwave Source:      Varactor tuned Gunn cavity oscillator 
Output Power:        Nominal 12-18 mW / Maximum 20 mW 
  Radiated Power Density:     < 100 mw EIRP 
  Transmit Antenna:      Linear Polarization, vertical E field 
   Beam Width:        40 deg. Horiz. , 70 deg. Vert. 
   Gain:  + 6 dBi 
  Received Microwave Beam:    Linear Polarization, vertical E field 
   Beam Width:        20 deg. Horiz., 30 deg. Vert. 
    Gain:  +17 dBi  
Detection Range:  1000 ft. typical for average size vehicle. Range varies by 
size of vehicle, terrain, traffic conditions, weather 
conditions, and other external conditions present in various 
locations. 
This device complies with Part 15 of FCC rules. Moduification of this device without the express consent of the 
manufacturer may invalidate the user's right to operate the device.
This device complies with Part 15 of the FCC Rules subject to the following two conditions:
1) This device must not cause harmful interference and,
2) This device must accept all interference, including interference that may cause undesired operation.
RF Exposure Warning: A minimum separation distance must be maintained between the user and the radiating 
antenna. Failure to maintain this minimum separation distance may cause the device to operate in excess of the rf 
exposure levels required by FCC Rules and should be avoided.






