Ancilliary (Anc) Data Display; Figure 27: Anc Data Display - Tektronix WFM5200 User Manual

Display Information

Ancilliary (ANC) Data Display

Elements of the ANC Data
Display
56
The ANC Data Display is available with Option DATA. It 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 monitoring 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 27.)

Figure 27: 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 defined by SMPTE
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 field only appears when
a Type 2 packet is selected; the "actual value" (with parity bits added) is
displayed in parentheses (mutually exclusive with DBN field).
WFM5200 Waveform Monitor User Manual