Section 6--Testing Procedures
6.9
After approximately one second, a number will briefly
appear in the LOCK window. For Ford Motor Company
vehicles, this synchronization number will be around 35.
A BMW motorcycle will read around 10. This indicates
the Eagle II is reading and comparing the speedometer
pulses and the Doppler patrol signal.
NOTE: Only the actual radar Doppler signal is used
for patrol speed. The speedometer pulse input
is used only to steer or guide the DSP to “look”
for the patrol Doppler signal in a specific area,
ignoring other signals.
3. During normal operation, at patrol speeds below the
minimum limit 10 MPH, 16 km/h, or when a patrol
Doppler signal cannot be found, the PATROL window
will display two dashes, indicating that speedometer
pulses are being received, but a patrol speed cannot be
displayed. If, for example, a patrol vehicle is traveling
at 50 MPH (80 km/h) by the speedometer but the DSP
cannot find any patrol Doppler signal around that speed,
two dashes will be displayed in the PATROL window
and no target speeds will be displayed.