Kustom Signals Falcon HR Operator's Manual page 68

No patrol speed during
tuning fork test
No target readings in
stationary mode
No patrol speed
Verify that unit is in Test mode.
Verify that the unit is not in
HOLD.
Verify the proper tuning forks
are being used.
Lightly strike the tuning forks
and retest.
Remove unit from service if
above tests fail.
Verify unit is not in HOLD.
Verify range control is set
properly.
Verify unit is aimed properly and
the target is within range of the
radar.
Unsquelch audio and verify that
a Doppler tone is heard when
targets are present. If no Doppler
tone is heard, remove unit from
service.
Verify unit is not in HOLD.
Verify the unit is aimed parallel
to the ground and straight down
the roadway.
Verify there are no obstructions
directly in front of the unit.
12.2