User guide

821116: AMP2-16V Series User Guide
© 2011 Wohler Technologies, Inc. All rights reserved.
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Chapter 4 Features
Dolby E Line Position Display
Dolby E Line Position Display
As part of the Status Data Screen, the AMP2-16V will display the
line position of each Dolby E bitstream contained in a 3G/HD/SD-SDI
signal, relative to the guard band. This may be shown for any or all
Dolby E bitstreams simultaneously on the same screen. As with other
status data, Dolby E the line position can be shown in a color and size
that is appropriate to its importance to you.
The Guard Band in an SDI signal is an interval in which video edits and
switching can occur without disrupting the signal. The Line Position
is the number of video lines from the end of the guard band to the start
of the Dolby E data burst.
Dolby CRC Error Counter Display
The AMP2-16V can flag and count Dolby errors as they occur. This
important information is shown on the Main Screen of the AMP2-
16V. Error counts may be allowed to accumulate or may be reset as
desired.
A CRC Error (Cyclic Redundancy Check Error) is a momentary flaw in
the Dolby bitstream. There can be a variety of reasons that this could
occur, including errors in transmission or a momentary interruption of
the bitstream. The occasional CRC error may be nothing to worry
about, but multiple errors are an indication of a signal problem, and
this display will allow you to make that judgment.
Status/Metadata Hot Keys
Two kinds of hot keys control the display of status data or metadata.
Pressing the Status/Metadata hot key toggles between Status data
or
Metadata. Rotating it sequences through the three possible pages of
each data type.
Pressing the Status/Metadata/Preset hot key recalls a preset.
Rotating it sequences through a total of up to six pages of status data