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Section 12—Troubleshooting
No target speeds
during tuning fork
test
Verify that RANGE control is set
to 6, maximum range.
If the unit has "DCM" antennas,
it must be in TEST mode to read
tuning forks. Test mode can be
selected by pressing the TEST
button and is indicated by the
Test indicator flashing. The unit
will remain in TEST mode for 30
seconds.
Verify the desired antenna is
selected.
Verify the unit is NOT in the
HOLD mode.
Unsquelch audio. Listen for
Doppler tone.
Verify (moving mode) that patrol
speed is showing the correct
tuning fork speed.
Lightly strike the tuning fork and
retest.
Remove unit from service if
above tests fail.
12.2
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