Display Information
Ancilliary (A
NC) Data Display
The ANC Data Display allows you to more closely examine all of the ANC data
in a signal. The ANC Data Inspector is part of the ANC Data Display. This
ancillary mo
nitoring feature allows you to see all ancillary data present in a signal.
The instrument continually monitors the signal and tells you when changes in
the presence of data occur. When Watch List mode is activated, the instrument
displays the presence and status of ANC data types you have selected in the Watch
List. This allows you to focus on the ANC data types that are important to you.
The Detail area (lower part of the display) displays only when in Full tile mode.
The Detail area can be expanded to show more data by pressing the MAG button.
(See Figure 28.)
Figure 28: ANC Data display
Elements of the ANC Data
Display
The following information is available on the ANC Data Display when in full
screen mode:
DID: Data Identifier of the requested packet; permissible values range from 1
to 0xFF (255) inclusive.
Type: Type of the ANC Data packet; either Type 1 packet (DID greater than or
equal to 0x80), or Type 2 packet (DID less than 0x80), as definedbySMPTE
291M; Type 1 packets do not have a SDID field, instead they have a DBN
field; the "actual value" (with parity bits added) is displayed in parentheses.
SDID: Secondary Data Identifier of the requested packet; permissible values
range from 0 through 0xFF (255) inclusive; this fieldonlyappearswhen
a Type 2 packet is selected; the "actual value" (with parity bits added) is
displayed in parentheses (mutually exclusive with DBN field).
WFM8200 and WFM8300 Waveform Monitors 51
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