Uniden UBCD996T Owner's Manual page 53

The next to last line on the display now shows the digital error rate and the AUTO
!
decode threshold start level (0-20).
! The last line on the display shows the decode threshold levels for the system.
Allow the scanner to monitor channel activity for several minutes. The error rate
should drop for each transmission and the threshold levels should automatically
adjust to a more optimal setting. Then, once the threshold level settles to a stable
setting, write down these values. This is the system's optimum decode threshold.
Rotate the Scroll Control
that most closely matches the system's optimum decode threshold. Now, when the
scanner stops on a system, it will use this threshold as the starting point for
automatic optimization.
To exit when the settings are complete, press
to set the AUTO decode threshold start level to a setting
then press
53
[VOL] .