Tektronix WVR6020, Technical Reference

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Speci fi cations
Table 35: Audio bar displays (Option AD) (cont.)
Characteristic Performance requirement Reference information
Silence Indication Delay Off or 1 to 60 seconds, user selectable.
Indication and alarm will not be asserted
until threshold has been exceeded for this
number of consecutive seconds. Factory
default set to 10. "0" is off.
Over Indication Threshold Audio level above which the signal will
be considered "over". Used to trigger on
screen indication and alarms.
Over Indication Delay Off or 1 to 30 seconds, user selected.
Indication and alarm will not be asserted
until threshold has been exceeded for this
number of consecutive seconds. Factory
default set to 2. "0" is off.
Adjustable Peak Program level (dBFS) Range 0 to –30. Peak Program level is the level relative to
digital full scale that the user chooses as
the maximum desired level for monitored
programs. The meter bars change to red
above Peak Program level.
Adjustable Test Level (dBFS) Range 0 to –30. Test level is the level relative to digital full
scale that you choose as the test or "line
up" level for your system. The meter bars
change to yellow between the Test and
Peak Program levels.
Set 0 dB Mark Select dBFS, Peak Program level, or Test
level. Use this item to number the meter scale
relative to Digital Full scale or to one of
the two user-adjustable levels. When the
zero mark is set to either Peak Program
or Test level, the scale units are dBr,
relative to the 0 dB level; units above the
selected 0 dB mark are positive, while
units below it are negative.
Table 36: Audio bar and aux displays (Option AD)
Characteristic Performance requirement Reference information
Phase Display AGC AGC (automatic gain control) may be
con
fi gured on or off.
AGC time constant: 0.5 sec to expand
display after a 0 to –40 level transition,
0.05 sec to reduce gain after a –40 to
0 dB level transition.
Phase Display Manual Scaling When AGC is off, level at perimeter of
display follows Program Level on Bar
display.
Phase Display Source Selection Provides independent selection of any
two channels of the selected audio input.
24 Waveform Rasterizers Speci fi cations and Performance Veri fi cation