Reference

Ancillary Data Display

The Ancillary Data display (see Figure 3-1) shows the raw (undecoded) data words in the selected ancillary data packets. The ancillary data is shown only in hexadecimal format. Since the display is updated at approximately 2-second intervals, rapid data changes cannot be detected.

Use the DID and SDID/DBN soft keys in conjunction with the general purpose knob to select the DID and/or SDID values for the type of ancillary data packet to be monitored. DID and SDID values have the following characteristics:

HDID and SDID values range between 0x01 and 0xff.

HFor DID values in the range 0x00 - 0x7F (Type 2 packets), the SDID values are used.

HFor DID values in the range 0x80 - 0xFF (Type 1 packets), there are no SDID values used (the SDID soft key is greyed out).

Table 3-1 lists the DID and SDID values that are defined for common types of ancillary data.

Figure 3- 1: Ancillary Data display

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WFM700 Series Waveform Monitors User Manual