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SYSTEM OPERATION 

 

 
INSTALLATION 

 

Install the DRU III unit into your system as follows: 

 

1.   Mount the radar in its bracket. 
 
2.   Attach the end of the power/data cable to the 6-pin 

connector on the back of the DRU III.  Ensure the plug 
and socket is aligned properly before tightening the 
screw ring.  Ensure the connection is firm and tighten 
the connector’s screw ring.  

 
3.   Plug the other end of the cable’s data leads to a 

compatible display or PC. 

 

4.   Connect the cable’s power leads to 8 – 16.5VDC 

source.  

 

MONITORING TARGET SPEEDS 

 

Aim the radar carefully, as nearly as possible directly in 
the target path.   
 
Once the radar has been properly set up and powered it is 
ready for use.  Acquiring and displaying valid target 
speeds requires proper antenna aiming. 
 
Be alert to terrain or roadside features, which can cause 
interference, incorrect readings, or display blanking.  
(Such features include power lines, radio/TV transmitters, 
bridges, guardrails, signs, buildings and other large 
reflectors, etc.) 
 

Summary of Contents for DRU III

Page 1: ...Directional Radar Unit III OPERATOR S MANUAL P N 006 0891 00 REV 0...

Page 2: ......

Page 3: ...merica This publication may not be reproduced stored in a retrieval system or transmitted in whole or in part in any form or by any means electronic mechanical photocopying recording or otherwise with...

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Page 5: ...get Speeds 6 Tuning Fork Test 7 GENERAL INFORMATION Theory of Operation 9 Power Data Connector 11 LED Indicator 11 Interference 12 Recommended Care Maintenance 13 KSI Radar Microwave Emission 14 TROUB...

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Page 7: ...nit Kustom Signals provides PC software to allow the user to setup the DRU III to operate in many different configurations The radar itself is incredibly simple to operate just connect it to a compati...

Page 8: ...et and radar unit B MOUNTING BRACKET SCREW 2ea Connects bracket to radar unit C INDICATOR LED Strongest target direction indicator D OPTIONAL MOUNTING INSERTS 4ea Provides optional mounting for custom...

Page 9: ...needs A simple PC program let the user select 1 Target Direction The DRU III can output speeds for targets traveling in the direction of a Approaching Only b Receding Only c Approaching and Receding d...

Page 10: ...ted in tenth units of measure The user selects if they want the output in tenths or units 5 Target Speed Limits The DRU III can quickly be set to the Standard speed range for speeds from 5 120 MPH or...

Page 11: ...characters P or P 0x0D 9 During the configuration session the Status box will display information about the connected DRU III and the status of the configuration operations To configure your DRU III...

Page 12: ...he cable s data leads to a compatible display or PC 4 Connect the cable s power leads to 8 16 5VDC source MONITORING TARGET SPEEDS Aim the radar carefully as nearly as possible directly in the target...

Page 13: ...ld the vibrating tuning fork approximately one inch in front of the antenna The output speed should register 35 45 Please note readings of 1 MPH KPH are considered acceptable If the proper reading is...

Page 14: ...y cold or extremely hot tuning forks may give readings slightly above or below those specified due to the effect of extreme temperature on the metal If this is the case warm or cool the forks to norma...

Page 15: ...itted signal strikes a moving target it returns at a different frequency because there is relative motion between the two objects radar unit and target Targets approaching the radar will return an ech...

Page 16: ...lifier stages increase the signal levels The signals are then converted from analog to digital by the A D converter This digital signal stream is feed to the Digital Signal Processor DSP The DSP trans...

Page 17: ...ata into the DRU III 3 Blue RS232 data out of the DRU III 4 Black Hold Control 5 Gray Ground 6 Pink Open collector alarm LED INDICATOR The DRU III has a bicolor LED to indicate the status of the curre...

Page 18: ...he device be on a slight decline the antenna could be shooting short of the target If on a slight incline it could be shooting over the target Range will be decreased in either case Man made influence...

Page 19: ...ize damage 2 Over current protection is provided by an internal automatic resetting device There are no user serviceable parts in the unit NEVER wire directly into AC current 3 Do not pick up or carry...

Page 20: ...can National Standards Institute which recommends a maximum power density of 10 0 mW cm2 for the frequency bands on which Kustom Signals traffic radar systems operate ANSI C95 1 1994 American National...

Page 21: ...ally at least one hundred times lower than in the main beam Another reference document on this topic is a DOT publication entitled Field Strength Measurements of Speed Measuring Radar Units NHTSA Tech...

Page 22: ...ensure beam is not being obstructed No speed readings RS232 LED indicating targets Check power data cable connections Intermittent speed readings Often caused by interference from stray noise Fans ele...

Page 23: ...olarization Linear Horizontal Beamwidth 12o Receiver Type Dual Channel low noise GENERAL Supply Voltage Range 7 4 24 0 VDC 12 6 VDC nominal Supply Current 100ma 12 6 VDC Environmental 30o C to 65o C 9...

Page 24: ...the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be...

Page 25: ...ipment as i is covered by this Warranty ii is delivered to Kustom Signals Inc or its agent at the Owner s or Lessee s expense within the term of this Warranty and iii upon examination thereof disclose...

Page 26: ...ls Inc makes no warranties of any kind other than as herein expressly provided expressed or implied and specifically disclaims the implied warranties of merchantability and of fitness for a particular...

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