User Manual

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IV. MPH BEE III Specifications
The MPH BEE III is designed for convenient use by law enforcement agencies to
measure the speed of motor vehicles when operated from a moving or stationary patrol
vehicle. The BEE III utilizes the well-known and legally accepted Doppler principle and
has been type accepted by the Federal Communications Commission.
A. SYSTEM SPECIFICATIONS
Nominal Power Supply Voltage: 13.6 Vdc
Low Voltage Condition Level: 10.8 Vdc. When supply voltage decreases below
this, a message of “Lo” is displayed on the front
panel to warn the officer of a low voltage
condition.
Power Requirements & Voltage: 10.8 Vdc-16.5 Vdc
(13.6 Vdc Nominal)
Current draw at 13.6 Volts: Standby, no displays (0.3A typical)
Front antenna “on”, no target (0.4A typical)
Front antenna “on”, with target (0.5A typical)
Front antenna “on”, during LED test (0.7A typ.)
Stationary Operating Speed: Stationary mode operating speed range is from 15
mph up to 200 mph.
Moving Operating Speed: In opposite direction mode, Patrol Speed range is
20 mph to 80 mph (will track to 90 mph) in
highway mode and 12 mph to 80 mph in city mode.
Target Speed range is 20 mph up to a closing
speed of 200 mph.
In same direction mode, Patrol Speed range is 20
mph to 80 mph (will track to 90 mph) in highway
mode and 12 mph to 80 mph in city mode. Target
Speed range is patrol speed ±70%. There must be
a minimum difference of 3 mph between target
and patrol speeds.
Operating Temperature Range: -30°C (-22°F) to 60°C (+140°F)
Operating Humidity Stability: Operates normally up to at least 90% relative
humidity at 99°F (37°C).