Section 12—Troubleshooting
12.3
No target readings in
stationary mode
Verify that the unit is NOT in the
HOLD mode.
Verify the range control is set
properly.
Verify the desired antenna is
selected.
Verify the antenna is aimed
properly and the target is within
range of the radar.
Unsquelch the audio and verify
that a Doppler tone is heard
when targets are present. If no
Doppler tone is heard, change
antennas or remove unit from
service.
Refer to fan interference in Sec.
8.2.
Remove unit from service if
above tests fail.
No patrol speed (unit
not in lock)
Verify that the unit is NOT in the
HOLD mode.
Verify the desired antenna is
selected.
Verify the antenna is aimed
parallel to the ground and
straight down the roadway.
Verify there are no obstructions
directly in front of the antenna.
