GUIDE TO INSTALLATION AND OPERATION
30
| MDX-3901
Overload Cursor
– The overload cursor appears on the meter as an
arrowhead in the meter scale. The two pulldown boxes set the position of
the overload cursor on the left and right meters. If the audio level on that
channel goes above the cursor, the Overload Counter at the top of the
meter is incremented.
The
Overload Counter
shows a running count of the number of overloads
detected. The Overload level is shown by a marker beside the meter, and
its position can be set under the
Meter Ballistics Config
tab
The
Phasemeter
(located at the bottom of the RALM meter display) is a
small meter that represents the phase correlation factor between the two
channels of a pair.
Note
– The level and phase meters are disabled for channels carrying any
Non-PCM audio (Dolby-E, Dolby Digital, Dolby Digital Plus or other non-
PCM types).
180°
90°
0
5.8 Test panel
This panel is available only in embedder mode. It contains a
pulldown that allows the user to select an internally-generated
test signal to replace the SDI program signal at the
MDX-3901
’s output.
OFF:
the program signal appears at the output, and test
signals are OFF.
Color Bars and Tone:
sends a 75% color bar test pattern
(100% white), along with audio test tones (a continuous tone
on right channel with pulsed tone on left channel in every pair)
to the MDX-3901
’s output.
Figure 5.18 Test panel
Figure 5.17 RALM meter display
