Section 8--Interference
8.5
8.3.
Groundspeed
True groundspeed of the patrol vehicle is required by all
moving traffic radar systems before a target vehicle speed
can be accurately computed. If the Eagle II loses correct
groundspeed, the operator can recapture groundspeed by
quickly activating and then deactivating the HOLD mode. In
most instances this tactic will also eliminate a combined
speed in the PATROL window.
The Eagle II's DSP system will always look for and display
groundspeed before displaying any targets. The
groundspeed radar signature is unlike any target or
interference signal. The DSP can identify this pattern,
which is helpful in situations such as shadowing or
combined speeds. While this technology will eliminate
most of the influences found in moving radar, it is still the
responsibility of the operator to complete a tracking history
on the target vehicle and verify the patrol speed with the
patrol vehicle's speedometer.
Close observation of the patrol vehicle's speed reading is
recommended to avoid possible confusion.
NOTE: Minimum ground speed displayed is selectable at
either 10 or 20 MPH (16 or 32 km/h). To check
the setting, press the PAT/SEL switch while the
radar is not locked. The TARGET window will
display "PAt", the PATROL window will display
either "10" or "20". To change the setting, press
the MODE switch once while the "PAt" "10" or
"20" is being displayed. The unit will
automatically return to normal operation after 2
seconds.
