xx
WFM6120, WFM7020, WFM7120,
WFM6100 Opt. MB, WFM7000 Opt. MB, and
WFM7100 Opt. MB
ZZZ
Waveform Monitors
Release Notes
www.tektronix.com
P077022600*
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077-0226-00
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Contacting Tektronix
Tektronix, Inc.
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P.O. Box 5 0 0
Beaverto
USA
For product information, sales, service, and technical support:
n, OR 97077
In North America, call 1-800-833-9200.
Worl dwid e, visi t www.tektronix.com to find contacts in your area.
Release Notes
These release notes support software version 4.2.X and greater. The release notes
apply to instruments with the indicated measurements or options installed. See
the Quick Start User manual or visit www.Tektronix.com for a list of options
available for each model.
Known Issues and Behaviors
The following pages describe known issues and behaviors of the waveform
monitors.
Topics are listed in alphabetical order.
3 Gbps Pathogenic Signal
Anc Data Inspector
Audio Board Temperature
ort
Rep
Audio Errors
The Level B 3 Gbps pathogenic signal is a combination of two pathological
signals, but is not, itself, pathological. If you need a pathological signal, use
Level A.
When using a 3 G, Level B signal, the link information in the Anc Data
Inspector display is not reported correctly.
You might see data that you do not need to see if you are viewing data types in
the Anc Data Inspector display with Watchlist enabled while in simultaneous
mode (SIM).
input
Unknown ancillary data types are sometimes reported when inputs are
ched. You can clear the unknown data types by pressing the MEAS button
swit
and selecting Reset All Sessions from the Anc Data Display menu.
The diagnostic log posts a temperature reading for an audio board even though
e may not be installed.
on
Audio DSP heartbeat errors may be reported sporadically in the diagnostics
log. The audio monitoring features are not impacted by this behavior. The
nstrument does not require any repair if this error is reported sporadically.
i
When the Audio display is active and the audio input is changed, the displayed
udio scale may not update automatically. Press the FULL button to toggle
a
the display and update the audio scale.
NOTE. See SIM Mode for audio issues related to SIM mode operation.
Waveform Monitors Release Notes 1
Release Notes
Calibration and
Performance Verification
Display Distortion
Capture and Freeze
Before enterin
input, select Input A, verify lock, then disconnect the SDI signal and start
Calibration.
On some units, the calibration screen might not be displayed after selecting
CONFIG > Utilities > Calibration. If this occurs, press the STATUS button to
display the calibration screen.
If a clean waveform is not seen when Eye Gain Adjust is selected, then
remove the calibration signal and connect an SD SDI signal to the selected
SDI input. After the SDI e ye diagram is stable, remove the SDI signal and
reconnect the calibration signal.
After calibration is complete, instrument power must be cycled to restore
normal operation.
Theaudiophasedisplayisoptimizedfora4x3monitor.Whenanexternal16x9
XGA monitor is used, the X-Y axes of the audio phase display are not 90 degrees
apart and the waveform is stretched somewhat horizontally.
Capture Buffer is designed to capture digital video only, and not analog video.
You can select Capture Buffer while monitoring a composite video input,
but there will be no effect because the Capture Buffer mode does not apply
to composite analog signals. Use the Capture Freeze mode when monitoring
composite analog signals.
g Calibration, connect any supported SDI signal to the SDI A
Dolby Bar Labels
Short duration trigger events are captured, but “frozen” status displays such as
video session may not update in time to reflect the event.
Captured format must match input. When viewing capture buffer data, ensure
a signal with the same format is on the selected input.
Capture mode works when at least one tile is one of the following: waveform,
vector, gamut, or picture.
Use Freeze instead of Buffer to capture physical layer characteristics.
Selecting to delete the capture buffer from the Remote UI does not delete
the capture buffer.
Manipulating Capture data (such as changing display types or changing to
full screen) can introduce spurious errors in the captured status and session
screens.
Depending on the current state of the input, surround chann
by numbers 1-10, rather than by labels L, R, C, and so on. The channels, if
present in the AUDIO display, allow the Channel Labels to be present in both
the audio input/output maps in the CONFIG menu and in the audio session. If
channels are not present (input shifts from 5.1 to Stereo or downmixes are turned
els may be indicated
2 Waveform Monitors Release Notes
Release Notes
Dolby Operation With
Option DDE
off), the affec
Channel Labels. In the alarm status and error log, bar numbers are always shown
regardless of the input format.
In the AUDIO d
selected, the downmix level bars continue to display levels instead of going to
Mute status. The other bars go to Mute status a s expected.
For listening mode selections other than FULL or EX, clipping may
occur. For example, if the Dolby Digital input is 3/2 with full-scale test
tones and Stereo listening mode is selected, clipping will likely occur.
To avoid clipping, choose either compression mode, Dialnorm+Line or
Dialnorm+RF, in CONFIG > Audio Input/Outputs > Dolby D (AC-3) Setup >
Dialnor
When in Channel Mode 2/2 and Phantom Listening Mode, the Surround
Sound di
instead of displaying at full amplitude for this channel mode/listening mode
combination.
When in Channel Mode 3/0 and 3-Stereo Listening Mode, the Surround
Sound display (AUDIO tile) shows the C level attenuated by 3 dB instead
of displaying at full amplitude for this channel mode/listening mode
combination.
ted bar numbers appear in the session and maps, replacing the
isplay, with a Dolby Digital input and a nonexistent stream
m&DynRng.
splay (AUDIO tile) shows the Ls and Rs levels attenuated by 3 dB
Dual Link Mode
Embedded Audio Active
Bits (SD Only)
The Dolby E/Dolby Digital decoder will pass through PCM audio at 48 kHz
frequencies or less. Audio frequencies above this will not pass through and
may cause noise or distortion on both the bars and the audio outputs. If PCM
io at frequencies greater than 48 kHz is used, choose either AES A or
aud
B as the input source.
r Dolby Digital (AC3) signals, the header in the Audio display may show
Fo
Channel Mode incorrectly. See the Dolby Status display for the correct
indication of Channel Mode.
The ANC data display reports the incorrect line number for 50p, 59.94p, and
60p formats.
The Audio Active Bits field only reports up to 20 bits for SD.
Waveform Monitors Release Notes 3
Release Notes
Embedded Audio with 3
Gbps level A signals (1080
50p/59.94p/60p)
Error Readouts
External Reference
ANC Data Displa
than its actual location.
Datalist Display: Embedded audio data that is actually present on odd lines
appears on the next even line. The actual locations of audio data on odd lines
appear with the value "000". Anc data actually present on even lines appears
on the correct line, but follows any audio data transcribed from the preceding
odd line.
Waveform Display, Strip EAV/SAV/ANC Configured to Off: Embedded
audio ancillary data from the preceding line, or runs of value "000", may
pear in the horizontal interval.
ap
If every CRC or Line Number in a signal is incorrect, the status screen will
display "Error" for a couple of seconds and then go back to "OK", even if the
error is still present. If the error is present when the signal if first connected, it
is never detected.
Sometimes loss of the External Reference signal does not make the resulting
loss of lock obvious. For example, if a 525 input has EXT REF selected and
configured to lock to an NTSC reference, removing the external reference
signal leaves the waveform stable, but shifted on the screen.
y: Audio Data may be reported as occurring one line later
Field Installs of Dolby
Options
Note that the SDI Input Readout can be used to determine if the waveform is
locked.
When in SDI mode, but with no SDI input signal present, the screen
displays Ref: Ext Unlocked even though a valid External Reference signal
is connected.
The following External Reference signal formats are not fully supported
when in line select mode or in Sweep MAG mode. Although not supported,
the following formats may be somewhat functional and are not locked out:
NTSC and PAL with tri-level input, and 720p 23.98, 1080sf 29.97, 720p 24,
1080sf 30, 720p 25, and 1080sf 25.
With some combinations of SDI input and External Reference formats, the
sweep stops prematurely when Sweep MAG is in one-line mode. To work
around this limitation, turn off EXT REF to make the measurement.
When you update an instrument with Option DDE, the Dolby input entries may
not appear in the Audio popup menu until you cycle power. Therefore, after
installing an option and powering up and updating the Option Key, be sure to
cycle power once more to ensure that the menu items a ppear.
NOTE. See Dolby Operation With Option DDE for Dolby and Option DDE
related issues.
4 Waveform Monitors Release Notes
Release Notes
1080 50p, 1080 59.94p, and
1080 60p Fo rmats
Incompatible Operation
OP47 Teletext
Print
SDI Status Display
In these format
trace displays in other tiles.
ANC data displ
SDI PixMon out is intended for viewing Picture information only. In these
formats, Pi
embedded audio data may be missing.
When applying SD or HD signals to any monitor that does not support them, the
unit indic
signals may result in a frozen PICT display.
The OP47 Protocol Error alarm may not trigger accurately. To avoid getting this
error, d
You can print the error log for single input mode, but not simultaneous input mode.
When the input signal is missing, the Cable Length meter, the Cable Length
readout, and the Cable Loss readout on the SDI Status display indicate zero. Use
the Input Status on the Status Bar for the actual signal state.
ates that the signal input is not standard. Applying unsupported video
isable the alarm in CONFIG > Alarms > Closed Captions/Teletext.
s, audio phase display is not displayed if there are two or more
ay reports the incorrect line number for these formats.
xMon out provides a “combined” picture and the ANC and
Simultaneous Input Mode
(Option SIM)
To access Analog Output Mapping and AES Output Mapping settings while
in simultaneous input mode, go to CONFIG > Audio Inputs/Outputs > Dual
Audio > Audio Inputs.
The phase pair selected as an audio source is for the channel of the phase
pair you changed last.
External Reference reports unlocked if no SDI A signal is on Channel 1.
Selecting AES B as a source when it is an output causes a blank tile.
Phase pair and headphone selections for downmix are in red text and are
labeled 9-10 instead of Lt-Rt.
Only single input logs can be printed.
You might see data that you do not need to see if you are viewing data types in
the Anc Data Inspector display with Watchlist enabled while in simultaneous
input mode (SIM).
Waveform Monitors Release Notes 5
Release Notes
SNMP Messages
Sweep
Sweep MAG
USB
Commands retur
for embedded audio channel pairs 9 & 10, 11 & 12, 13 & 14, and 15 & 16.
The MIB contai
not indicate that the OID is for loudness.
The MIB cont
not contain a command for program session loudness.
The waveform style must be set to Overlay to get 2 line or 2 field sweep.
Whenin2li
invalid information at the left and/or right side of screen (beginning and/or end of
sweep) when Sweep M AG is on. HD formats are unaffected.
Always u
memory device from the USB port. You risk permanent loss of any files saved
on the USB device if you do not use this feature.
If there are more than 32 files saved in a Capture or Presets directory on the
USB,youcanonlyviewthefirst 32 files.
ne mode, waveform displays of SD or composite inputs will display
sethe“UnmountUSB”menufunctiontosafelyremovetheUSB
ning the audCurOutput OID return the string “Embed 7 & 8”
ns the command dolbyPgmAvg, but the command name does
ains the dolbyPgmCurLoudness command. However, it does
Waveform Mode Cursor for
XYZ Color Space
Web Browser
The vo
referenced in hex scale. If you want to see the values for 000 to FFF, change the
graticule settings to max and percent.
ltage cursors are given in millivolt scale, but the XYZ color space is
Web browser applet will not resize when running in some versions of
The
the Netscape browser and in some non-Windows Operating Systems (for
example, Solaris).
Use Java Runtime Engine (JRE) version 1.6; otherwise, issues may occur.
6 Waveform Monitors Release Notes
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