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SR1 Operation Manual 84
© 2014 Stanford Research Systems
Reserved In
Use Highlights status fields marked "reserved" in the standard but which contain non-zero
values.
Data/Active Bits Display
The Data/Active Bits indicator displays 2 rows of indicators, corresponding to the 24 data bits of each
digital audio channel. The color of each indicator indicates the status of that bit over 1 digital audio block
(1 block contains 192 frames) . Red indicates that the bit does not change value over one block. This
can be an indication that the bit is "stuck." Dark Green indicates that the bit changes value over the
block. Bright green indicates that the bit is "on" in the first frame of the block.
Because the data/active bits display requires examination of the embedded digital audio signal,
it is only active if one of the active analyzers, A0 or A1, currently has digital audio selected as
its input. If none of the analyzer is currently looking at digital audio, the indicator will be grayed
and inactive.
Output Impairment Tab
Invert inverts the polarity of the digital audio output carrier signals. Properly operating digital audio
equipment should be immune to an overall polarity inversion.