Display Information
instrument use
s the SMPTE RP165 standard for error checking. For HD and
3 Gb/s signals, the CRCs change on every video line.
F2 AP CRC:ForS
D signals only, calculates and displays the active picture
CRC (Cyclical Redundancy Check) for field two in hexadecimal. The
instrument uses the SMPTE RP165 standard for error checking. For H D and
3 Gb/s signals, the CRCs change on every video line.
Data Collect: Shows the state of error gathering. The possible states are:
Running: Indicates errors are being gathered and displayed on the status
page.
Stopped: Indicates errors are not being gathered. The status page is not
being updated.
Resetting:Appearsbriefly after the SEL button is pres sed to reset the
statistics.
Runtime: The time since the last reset occurred. Time is displayed as "DD,
HH:MM:SS", where DD is the number of days, HH is the number of hours,
MM is the number of minutes, and SS is the number of seconds.
Stuck Bits: For SD signals only, displays which of the video bits are stuck. If
the readout is "—- —- –", then none of the bits are stuck.
Y Stuck Bits: For HD signals only, displays which of the luminance video
bits are stuck. If the readout is "—- —- LL", then none of the bits are stuck.
LL is displayed for the two unused bits.
C Stuck Bits: For HD signals only, displays which of the chrominance video
bits are stuck. If the readout is "—- —- LL", then none of the bits are stuck.
LL is displayed for the two unused bits.
EDH Error: For SD signals only, indicates that there is an error in the EDH
packet (checksum or parity) o f the signal.
Statistics: This section of the display shows the status and statistical values
for certain errors. For information about the errors in this section, view the
help file in your instrument: while the Video Session is active in a tile, press
the HELP button.
Status: Shows the status of the associated error as either OK, Invalid,
Missing, or Error.
Err Secs: The number of seconds, since the last reset, that contained at least
one error.
Err Fields: The number of fields, since the last reset, that contained at least
one error.
% Err Fields: Shows a calculated number showing the percentage of all
fields since the last reset that contained at least one error.
64 WFM8200 and WFM8300 Waveform Monitors
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