RELEASE NOTES

DSA8300 DIGITAL SERIAL ANALYZER

Product Application Software Release 6.4.1.1

Document Version: 1.0

Document Date: 4/20/2016

COPYRIGHT © TEKTRONIX, Inc. All rights reserved. Tektronix products
are covered by U.S. and foreign patents, issued and pending.
Information in this publication supersedes that in all previously published
material. Specifications and price change privileges reserved.

Tektronix, Inc., P.O. Box 500, Beaverton, OR 97077

TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.

1 Introduction

This document applies to the DSA8300 Digital Serial Analyzer when
configured with Product Software Version 6.4.1.1. Information provided
in this document is relevant to installation and operation of the
Product Software, base Platform Software, and Operating System (OS)
Software. Product Software is defined as the TekScope application,
which is used to operate the instrument as an oscilloscope. Platform
Software is defined as the necessary additional software that allows
the Product Software to run on the instrument and interface with the
instrument hardware.

The Product Software is typically provided on media (CD or DVD)
containing "Instrument Product Software" in its title and is
pre-installed on new instruments received from the factory. The latest version
of the Product Software is periodically made available for download
from the Internet. Please check the Sampling Oscilloscopes web page
at:

http://www.tek.com/Measurement/scopes/index/prodindex_sampling.html

to determine the availability of Product Software updates and other
downloadable software packages.

The Programmer Guide .pdf file may be accessed under Start --> All
Programs --> Tektronix Oscilloscope --> Documents. Refer to the
Tektronix web site for any updates.

This product is not equipped with virus protection software. Prior to
leaving Tektronix, this product was checked for known viruses and
to the best of Tektronix' knowledge, was considered clean of known
security threats. If this instrument will be placed on a network, it
is highly recommended that you add such software. Virus protection
software might slow down the start-up of the instrument, loading of
applications, or acquisition of data. These issues usually can be
alleviated through customization of the settings of the virus protection
software.

2 Installation

2.1 TekScope Media Contents

The TekScope Product Software media contains the 6.4.1.1 TekScope
application in addition to the following software packages:

* TekVISA Analysis and Connectivity Software
* BERTScopePC application and driver software (for use with Tektronix
Clock Recovery instruments 80A07, CR125, CR175 and CR286)
* A Differential Channel Alignment application (for use with specific
sampling modules to perform acquisition and TDR step alignment)
* A Setup File Translator utility application (to aid in converting
5.x or later DSA8200 setup files to DSA8300 setup files)
* A recent version of Adobe Reader

NOTE: TekScope version 6.2.1.2 or higher is required for
instruments with serial number C040000 and above (GSA instrument serial number
B020000 and above).

2.2 Installing the Product Software

Installing the Product Software requires administrative privileges
since the installation routines need to modify settings that apply to
all instrument users. The factory installation of the Windows 7
Ultimate operating system is configured to automatically log into the
"Administrator" account (no password is needed) during the boot
process. If this behavior has not been modified, then you are ready to
install the Product Software. Otherwise, you will need to manually log
into the instrument as an administrator.

It may be necessary to disable virus scanning software, or other
third party software packages, in order to reliably install the Product
Software. It is not necessary to terminate the TekScope application
in order to install an upgrade to the Product Software.

If installation from a LAN is desirable, the contents of the Product
Software media (or the downloaded Web installer) may be copied to a
file server. The file autorun.exe must be executed to proceed with
installation whether on the scope or over the network. Do not install
by running the individual TekScope setup.exe.

Installation Details

* Installation of the Clock Recovery software is relatively long (2-3
minutes). Please wait during its installation.
* Two Windows Security dialogs may appear during installation. Click
on "Install this driver software anyway" if they appear.
* If the install seems to be taking a long time, try minimizing the
AutoPlay window. Sometimes a popup window is placed behind the
AutoPlay window and is waiting for user interaction.

2.3 Restoring the Operating System

Instruments starting at serial number C040000 (GSA instrument serial
number B020000) no longer ships with operating system (OS) restore
media, as possibly stated in other product manuals (for instance the
DSA8300 Digital Serial Analyzer Quick Start User Manual). To restore
the hard drive to factory conditions, including the operating
system and all applications, use the procedure "Restoring the Hard Drive
to Factory Condition" described in the next section.

2.4 Restoring the Hard Drive to Factory Condition

Data is provided on the hard drive that allows the Windows operating
system and all applications to be restored to factory conditions in
a single operation. To do so, perform the following sequence:

* Reboot the instrument.
* Press function key F5 when the "Starting Acronis Loader..." message
appears.
* Select Recover when the menu appears and Yes in the confirmation
dialog.
* After restoration is complete, approximately 20-30 minutes, reboot
the instrument.

If restoring the hard drive to factory condition is not successful
or does not perform correctly, the drive itself may be faulty.
Contact Technical Support for further information.

WARNING: Restoring the Hard Drive destroys all existing files and
information on the instrument's hard drive.

NOTE: Instruments originally shipped with Product Software 6.0.x will
have been shipped with the Windows taskbar set to Auto-hide.
Restoring the Hard Drive to Factory Condition will also result in the
taskbar being set to Auto-hide. For best operation with other Tektronix
software applications, it is recommended to disable the Windows
taskbar Auto-hide feature. You may do this by right-clicking on the
Windows taskbar, selecting Properties, and then unchecking the
"Auto-hide the taskbar" feature.

For instruments shipped with Product Software 6.1.x and later, the
instrument's hard drive is preconfigured to disable the Windows
taskbar Auto-hide for the default Tek_Local_Admin account only. Restoring
the Hard Drive to Factory Condition through the above steps will
result in that same configuration of the taskbar Auto-hide.

In all cases above, user accounts that are newly created will have
the Auto-hide property enabled. To disable, follow the procedure
provided above.

3 Benefits of Installing Software Release 6.4.1.1

3.1 Enhancements

This release and media distribution includes the following
enhancements:

* A new programmatic command to query the actual measured mask
autoseek margin Hit Ratio - the displayed value in the measurement
readout - as opposed to the target Hit Ratio.

MASK:AUTOSEEk:MEASHitratio? (Query Only)

* A new a programmatic command to enable/disable the computation of
the Mask Autoseek margin uncertainty (improves Mask Autoseek
performance).

MASK:AUTOSEEk:UNState

* A new alternate programmatic command to query the number of UI
samples acquired during a mask test (equivalent to
ACQuire:CURRentcount:MASKUisamples?).

MASK:COUNt:UISamples? (Query Only)

* Three new masks with associated programmatic interface tokens for
HORizontal:BITS:STANdard and MASK:STANdard commands:

Mask: OTU-4/OTL4.4 (27.9524Gbps), Token: OTU27952
Mask: 100GBASE-SR4 (25.78125Gbps), Token: ENET100GB_SR4
Mask: 100G PSM4 (25.78125Gbps), Token: PSM4_100G_TX

* Support for the 100GBASE-SR4 TDEC filter that is available in
certain optical modules. New ENET257SR4TDEC token has been added to
programmatic command CH:FILTer:VALue.
* New programmatic commands to hide/show waveforms on the display
(hiding improves waveform curve query performance).

DISplay:CH:MAGnify
DISplay:CH:MAIn
DISplay:MATH:MAGnify
DISplay:MATH:MAIn
DISplay:REF:MAGnify
DISplay:REF:MAIn

* New programmatic commands to set waveform display colors.

CH:COLor
MATH:COLor
REF:COLor

* The product software media contains an independent utility
application named DSA8300 WfmDB Export to help export statistical Waveform
Database data to a CSV file. On instruments shipped with TekScope
6.4 and later, this application is pre-installed and available
from the Start menu or shortcut on the desktop. Upgrading existing
DSA8300 instruments requires manual installation. To do so, run the
setup.exe from the TekScope media WfmDBExport folder. This
application does not show up in the TekScope Applications menu.

3.2 Miscellaneous Changes and Corrections

Other noteworthy changes and corrections including the following:

* When a mask is activated (loaded) from the user interface, Use Wfm
Database is automatically enabled.
* When a Custom Mask is imported from the user interface, it
automatically becomes the selected mask and mask testing is enabled.
* The reliability and robustness of mask & NRZ eye autoset has been
improved.
* The algorithm mask margin uncertainty computation has been revised
(depending on signal, could return a value too large).
* The use of all 8 measurements no longer causes mask Autofit and
Autoseek to fail.
* Programmatic MASK:AUTOSEEK EXECUTE errors no longer appear in the
user interface.
* Fixed intermittent crash at wincore.cpp line 1039 (or 979,
depending on TekScope version).
* Fixed 80SJNB application activation string change (now accepts
either "80SJNB" or "80SJNBAdvanced+PAM4" strings).
* Fixed crash when custom mask import is done after dark level
compensate from the programmatic interface.
* Fixed an issue where the PHASEREF:CHAR programmatic command could
hang the scope.
* Measurement readouts in percentage no longer use prefix modifiers
(e.g. m, u, etc.).
* Fixed an issue where custom mask file names containing multiple
periods would not import.

4 Changes Included in Prior Software Release 6.3.1.5

This minor release includes corrections for possible intermittent,
but false, mainframe and optical module compensation failures.

5 Changes Included in Prior Software Release 6.3.1.4

This minor release includes a correction for possible intermittent
optical module compensation failures, more prevalent with the 80C10C.

6 Changes Included in Prior Software Release 6.3.1.3

This release and media distribution includes the following:

* A new mask margin feature called Autoseek Margin (as part of the
TekScope software). Includes changes to the programmatic interface.
* An updated version of TekVISA connectivity software to fix a
firewall issue (installed as part of the TekScope software update).
* An updated version of the Differential Channel Alignment
application to correct a potential channel mismatch (installed as part of
the TekScope software update).
* An updated version of the DSA8300 Setup File Translator utility
application to fix an issue where a converted setup file could crash
the DSA8300 scope. (Note that this utility application must be
installed manually from the media after uninstalling the current
version through the Control Panel).
* Miscellaneous changes and corrections

6.1 Feature Added: Autoseek (Mask) Margin

A new Autoseek Margin feature has been added that automatically
adjusts the mask margin according to one of two selectable target
criteria - Hit Ratio or Total Hits. Related additions include:

* A new mask margin mode control (Off, Manual, Hit Ratio, or Total
Hits)
* New mask readout fields such as Unit Interval Samples and measured
Hit Ratio.
* A new acquisition Stop After condition of Mask UI (Unit Interval)
Samples.
* A new acquisition Stop Action of Do Mask Autoseek.
* A new graticule Autoseek status message (to indicate when Autoseek
is valid, i.e. has been successfully executed on the current
accumulated waveform data).
* Several new errors and warnings related to the new Autoseek Margin
feature

Refer to the instrument's On-Line Help (Mask Setup) or Quick Start
User Manual (Mask Testing) for operation.

6.2 Programmatic Interface Changes

The following additions have been made to the programmatic interface:

* ACQuire:CURRentcount:MASKUisamples?
* MASK:AUTOSEEk EXEcute
* MASK:AUTOSEEk:HITRatio
* MASK:AUTOSEEk:MASKCount
* MASK:AUTOSEEk:STATe?
* MASK:AUTOSEEk:UNCertainty?
* MASK:MARgin:MODe OFF | MANual | HITRatio | MASKCount

The following existing commands have been modified:

* ACQuire:STOPAfter:ACTion (AUTOSEEk added)
* ACQuire:STOPAfter:CONDition (MASKUisamples added)
* MASK:MARgin:STATE (use new MASK:MARgin:MODe command - retained for
legacy compatibility)

In addition, several status and error events/messages have been
added related to the new Autoseek Margin feature. Some existing Autofit
Mask error messages have also been modified.

Refer to the instrument's Programmers Guide for details, including
factory defaults for new Autoseek Margin related settings (Acquire and
Mask areas).

6.3 Miscellaneous Changes and Corrections

Other noteworthy changes and corrections including the following:

* Former mask setup dialog mask autoset controls - Autoset Method
(Automatic/Manual) and HiLow Method (Mean/Mode) - have been moved to
a new Advanced Mask Setup pop-up dialog.
* An issue was fixed in which the scope does not properly recall
waveforms saved from pre DSA8300 sampling scopes (hangs scope)
* An issue was fixed in which changing the Windows text size from
Smaller to Medium causes the scope to hang on startup. Note that
while the scope will no longer hang, do not change the Windows text
size - the user interface will not look or behavior properly.

7 Changes Included in Prior Software Release 6.2.1.4

This minor release includes a correction for an intermittent, but
false, mainframe compensation failure.

8 Changes Included in Prior Software Release 6.2.1.3

This minor release includes corrections for two issues:

* Missing waveform segments when using Triggered Phase Correction and
a Clock Input/Prescaler Trigger input frequency of 400MHz or
less.
* Possible misplaced acquired samples around 650ns horizontal
position when using Direct, Free Run, or Clock-Other trigger
sources/modes.

9 Changes Included in Prior Software Release 6.2.1.2

9.1 Support for Acquisition Changes and Jitter Improvements

Acquisition hardware changes have been made to instruments with
serial number C040000 and above (GSA instrument serial number B020000 and
above) that support improved system jitter performance (with
appropriate sampling modules). Software included in this version is
required for these instruments for proper operation.

9.2 Updated Version of TekVISA Connectivity Software

This installation contains a major revision (4.0.0) to the TekVISA
Connectivity Software that includes a variety of enhancements and
defect corrections. Included is a correction to VXI-11 interface
operation where buffers were not properly cleared on query timeouts,
resulting in subsequent queries returning results from the previous query
(i.e. query results being out of sync).

9.3 Updated Version of Differential Channel Alignment Application

Some minor enhancement and corrections have been made to the
Differential Channel Alignment application version 1.4.1.x.

10 Changes Included in Prior Software Release 6.2.1.1

10.1 Support for New Sampling Modules

Sampling modules 80E07B, 80E08B, 80E09B, 80E10B, 82A04B, 80E11, and
80E11X1 contain new capabilities that are supported by this software
release. New capabilities include time calibrated Vertical Channel
Delay and TDR Step Deskew controls, where applicable, along with
range appropriate coarse/fine increment/decrement resolutions.

New programmatic commands are available to set these controls
directly in time, while former commands continue to set them in percent.
Refer to the Programmatic Interface Changes section.

Utilization of the new Differential Channel Alignment application
improves the accuracy of the Channel Delay and TDR Step Deskew as the
above modules are moved between mainframes and mainframe module slots
or attached to, or removed from, extender cables (where
applicable).

10.2 Feature Added: Differential Channel Alignment Application

A new differential alignment application, single-ended in the case of
the single-channel 80E11X1, is installed with this version and
available from the TekScope Applications menu. The modules currently
supported by this application, version 1.4.x, include the 80E07B,
80E08B, 80E09B, 80E10B, 82A04B, 80E11, 80E11X1, and 80E04.

Utilizing this auxiliary application improves the linearity of both
the Vertical Channel Delay and TDR Step Deskew features, the latter
only for TDR capable modules, and channel-to-channel matching for
dual-channel modules. 80E04 support is limited to TDR Step Deskew
alignment. Accessory items may be included with the modules specifically
to aid in this process.

It is recommended that this application be used for the listed
modules under the following conditions:

* When first installing the module in an instrument.
* After moving the module to a different slot.
* After changing the extender module configuration (where
applicable).

NOTE: This application has the capability to remember (save) and
restore module characterization data for each slot.

The following describes some known limitations and important
operational notes.

* Close the Differential Channel Alignment application before
powering down the instrument. On exit, this application attempts to
restore a setup to the TekScope application. As both applications
attempt to shut down, this may cause a TekScope assertion of file
ISDB.cpp, which can be ignored.
* Close all TekScope dialogs while using the Differential Channel
Alignment application. A variety of TekScope dialogs, such as most
File and Utility menu invoked dialogs, are modal and prevent
programmatic communication from any source. Trying to operate the
Differential Channel Alignment application with any of these dialogs
active will cause the alignment application to stop working.
* When using the alignment application, it is strongly recommended
not to change scope settings from either the TekScope application or
programmable interfaces (GPIB or VXI-11). Otherwise,
unpredictable operation may occur.

Refer to the Differential Channel Alignment application's on-line
help for additional operational details.

10.3 Phase Correction Enhancements

Both usability and performance enhancements have been made to Phase
Correction operation in this release, including the following:

* The phase reference clock characterization time has been reduced.
* The phase reference clock characterization process has been
improved such that it is more robust and reliable over wider input clock
conditions, thereby providing better quadrature sampling results.
* Reporting of new metrics of the characterized input clock has been
added as an aid to understanding the clock characteristics and
overall jitter performance. These include estimated frequency,
amplitude, and quality.
* The new estimated metrics are available in the user interface and
through the programmatic interface. An associated estimated clock
quality graphic has also been added to the phase reference readout
status button.

10.4 Programmatic Interface Changes

The following additions have been made to the programmatic interface:

* CH:DELay:UNIts?
* CH:DELay:TIMe
* TDR:CH:STEP:DESKEW:UNIts?
* TDR:CH:STEP:DESKEW:TIMe
* PHAseref:CH:ESTFrequency?
* PHAseref:CH:ESTAmplitude?
* PHAseref:CH:ESTQuality?
* APPLication:SCOPEAPP:WINDOW FULLSCREEN | MINIMIZED

The following existing programmatic interface commands have been
modified:

* APPlication:ACTivate ("DiffChanAlign" string added)
* CH:DELay (works in % units only)
* TDR:CH:STEP:DESKEW (works in % units only)

Refer to the instrument's Programmers Guide for details.

10.5 New Front Panel and Driver Update

Instruments with serial number C020000 and later shipped with a new
version of the front panel. This version of the product software
includes an update to the front panel driver in the TekScope application
that addresses potential performance issues with the new front
panel. With the TekScope version 6.1 front panel driver, the new panel
responds slower to changes than before and may require increases in
controller timeout after operations such as OPC or Default Setups (on
the order 1-2 seconds).

10.6 Miscellaneous Improvements, Changes, and Corrections

This section describes other noteworthy improvements or changes,
including the following:

* The Horizontal Position fine increment was reduced from 2 pixels to
1 pixel.
* The application note describing the programmatic differences
between DSA8200 and DSA8300 (section 6.25) has been updated to reflect
changes made in this release.
* The product software media contains an independent utility
application named the DSA8300 Setup File Translator to help convert 5.x or
later DSA8200 setup files to DSA8300 setup files. On instruments
shipped with TekScope 6.2 and later, this application is
pre-installed and available from the Start menu or shortcut on the desktop.
Upgrading existing DSA8300 instruments requires manual
installation. To do so, run the setup.exe from the TekScope media
SetupFileTranslator folder. This application does not show up in the
TekScope Applications menu.
* The VXI Plug & Play Instrument Driver version 1.0.0.4 is available
on the product media. It is not installed or present on the
instrument hard drive as shipped from the factory. To install on the
instrument or a PC, navigate to the VxiPnP folder from the product
media (or downloaded web distribution) and run
PnPDriverInstaller.exe. The current 1.0.0.4 driver does not contain support for the
most recent programmatic changes in product software versions 6.1 and
6.2. Refer to the Tektronix web site for the most recent driver.
* Fixed issue where loading DSA8200 or earlier setup files would
crash the DSA8300.
* Fixed issue where 82A04 module compensation might fail when Trigger
source is set to TDR and TDR rate set to 300kHz.
* Fixed issue with mask rescaling during autoset when mask autofit is
enabled.

11 Changes Included in Prior Software Release 6.1.1.1 (from 6.0.x)

This section describes improvements, noteworthy enhancements, and
defect corrections from the 6.0.3.0 release. In addition, a number of
minor defects were also corrected in this software release.

11.1 Feature Added: Dynamic module reconfiguration (without powering
down)

A new feature has been added that allows changing the module
configuration without the need to power down the instrument. This is an
interactive, directed process that can be found in the Utilities -->
View/Change Module Config dialog. Refer to the instrument's On-Line
Help (Removing or Installing Modules Without Powering Down the
Mainframe) or Quick Start User Manual (Installing Modules) for operation and
warnings.

11.2 Feature Added: Autofit Mask to Data

A new Mask Autofit feature has been added that allows a mask to be
fitted to the waveform after the data has been acquired. Refer to the
instrument's On-Line Help (Mask Setup) or Quick Start User Manual
(Mask Testing) for operation.

11.3 Coarse control added for Cursors

All Cursor functions now have both Coarse and Fine control as set by
the front panel Fine button. Coarse is 10 pixels per knob
increment/decrement and 1 pixel for Fine mode.

11.4 Trigger and Phase Reference User Interface and operational changes

This release has changed the combinations of Trigger Sources, Scope
Modes (Clock Trigger Source), and Phase Correction Modes that are
allowed. The Mode/Trigger and Phase Reference setup dialogs have been
updated to reflect these changes (layout, terminology, and modal
behavior). Significant changes include:

* Phase Correction Mode selection is dependent on the Trigger Source
and Scope Mode selections (they must be selected first).
* Trigger Source and Scope Mode selections may coerce the Phase
Correction Mode (but not the reverse).
* Untriggered Phase Correction Mode (formerly Free Run) may only be
used with Free Run / Untriggered Phase Ref Trigger source.
* Triggered Phase Correction Mode (SSC on or off) may only be used
with Clock Trigger Sources and Eye or Pattern Scope Modes.

Refer to the instrument's On-Line Help or Quick Start User Manual
for additional operational details.

11.5 Programmatic Interface Changes

The following additions have been made to the programmatic interface:

* MASK:AUTOFit EXECute (no query form)
* MASK:AUTOFit:STATe? (query only)
* PHAseref:MODe UNTRIGger (new argument, equivalent to FREerun)
* TRIGger:SOUrce CLKPre (new argument, equivalent to EXTPrescaler)
* TRIGger:CLKRec:SOUrce (set and query commands no longer supported)

Refer to the instrument's Programmers Guide for additional details.

12 Highlights of Differences from 8200-Series Sampling Oscilloscopes

12.1 Compute Platform

Notable changes from the 8200-series products include:

* Windows 7 Ultimate operating system (32-bit)
* Dual core CPU
* 160GB or larger hard drive
* 3GB usable memory (RAM)

12.2 Front Panel

Notable changes from the 8200-series products include:

* The "Trigger Prescale Input" connector has been renamed "Clock
Input / Prescale Trigger" due to functionality changes (including
higher bandwidth).
* The "Internal Clock Output" connector has been renamed "TDR Clock
Out".
* Channel waveform buttons are now color coded - a unique color for
each of the 8 input channels.

12.3 Display & User Interface

Notable changes from the 8200-series products include:

* Display resolution has increased to 1024 x768
* Windows 7 look & feel (dialogs/windows, controls, graphics)
* The graticule has increased in size both vertically and
horizontally.
* Channel waveform input colors are now unique for all 8 sampling
module inputs.
* Enhanced color selection capability for increased flexibility.
* The readout area (Waveforms, Cursors, Histograms, Measurements,
Masks) has moved from the right-hand side (vertically oriented) of
the screen to the lower portion (horizontally oriented)
* The readouts may now be displayed or not displayed (from the View
menu). When not display, this provides a near full-screen
graticule.
* The lower readout area may be scrolled via scroll buttons or by
dragging the readout area left or right with the stylus or finger.
* A new dynamically sized, floating readout window or dialog is now
available (separate from the lower screen readout area).
* Windows right-click operations may now be invoked by pressing and
holding the stylus or finger to the touch panel surface.
* Several setup dialogs have been revised (Horizontal, Trigger,
Pattern Sync, TDR) or added (Advanced Trigger, Advanced TDR).
* The scope toolbar (Run/Stop, Trigger Source, etc.) has been
enhanced to be more context sensitive in that the controls to the right
of the Trigger Source selection dynamically change to provide more
commonly used controls for the selected operational mode.

12.4 Horizontal

Notable changes from the 8200-series products include:

* Supported record lengths are now 50-16000 for the Main timebase and
50-4000 for the Magnified timebases (in specific incremental
steps).
* All record lengths are now available at all horizontal scale
settings.
* A new Display Scale feature has been added to modify the behavior
of the Horizontal Scale control (Per Division or Per Screen) and
has a setting associated with each Horizontal Unit (Seconds, Bits,
Distance).
* The Timebase Mode feature & control have been removed (here and in
the Phase Reference setup dialog).
* All FrameScan setup controls are now available only in the Pattern
Sync setup dialog. In addition, the Auto Position and Start Bit
controls have been removed.
* In pattern trigger mode, the Horizontal Main Position has been
unified with the former Pattern Sync Relative Trigger bit to provide a
single pattern relative horizontal positioning control. When
Units is set to Bits, the minimum horizontal position at the left edge
of the screen corresponds to 0.0 bits.
* A Units Setup dialog has been added.

12.5 TDR

Notable changes from the 8200-series products include:

* TDR operation up to 300 kHz is supported (default TDR step rate
remains at 200 kHz).
* The "Autoset Properties..." button has been replaced with an
"Advanced TDR Setup..." button.
* A new Advanced TDR setup dialog has been added.

12.6 Trigger

Notable changes from the 8200-series products include:

* Trigger source selections have been revised to better model new
acquisition capabilities and operation. A new "Clock" trigger source,
with sub-selection of available clock sources, has been added.
"Internal Clock" has been renamed "TDR". A new "Free Run" trigger
source has been added which replaces the former "Auto" trigger mode
(as a quick way to observe signal presence and amplitude). Pattern
Sync trigger source has been removed and is now an operational
mode pertaining to Clock trigger sources only (if the ADVTRIG option
is enabled).
* The 80A06 Pattern Sync Trigger Module is no longer supported. The
mainframe now includes pattern sync capability that is enabled with
the ADVTRIG option.
* For Clock trigger sources, a new operational "scope" mode (Eye,
Pattern, Other) is available that controls triggering and acquisition
behavior. Pattern mode is available only with the ADVTRIG option.
* Available Clock trigger sources include the front panel Clock Input
/ Prescale Trigger input and modules containing clock recovery.
* When using a Clock trigger source, the instrument monitors the
clock frequency of the clock source and automatically optimizes
operation for best jitter performance. If a clock change is detected, a
message in the graticule is displayed to indicate the status of
the perceived clock change and the necessary action to force the
instrument to re-synchronize to the clock change (if possible). A
"Clear Data" operation, among others, will cause the instrument to
perform the re-synchronization operation.
* The Auto/Normal Trigger mode has been removed.
* A new Advanced Trigger setup dialog has been added. Within this
dialog, the former "High Frequency" control has been replaced with
the "Noise Reject" control (same underlying behavior but inverse
usage, e.g. High Frequency Off = Noise Reject On).
* Trigger Holdoff now applies differently to different trigger
sources and modes.

12.7 Pattern Sync / FrameScan

Notable changes from the 8200-series products include:

* All FrameScan controls now reside in one setup dialog (Pattern Sync
/ FrameScan).
* The Pattern Sync Source control has been removed since there is now
only one pattern sync source (the mainframe, when enabled by the
ADVTRIG option).
* The Relative Trigger Bit control has been removed and replaced with
a (Horizontal) Main Position control that provides a single
pattern relative horizontal positioning control. When Units is set to
Bits, the minimum horizontal position at the left edge of the
screen corresponds to 0.0 bits.
* A return-to-0 Main position control has been added that sets the
Main horizontal position to minimum.
* A Clock Source control has been added (that is essentially a common
control with the Trigger setup Clock source sub-selection
control).

12.8 Waveform Databases

Notable changes from the 8200-series products include:

* The number of Variable Persistence samples has increased to 2
million.

12.9 Measurements, Cursors

Notable changes from the 8200-series products include:

* Units of horizontal cursor positions and readout values now change
to match the selected horizontal unit (formerly only Seconds and
Distance were supported).
* Some timing measurements now also track the selected horizontal
unit.
* When measurement statistics are enabled, statistics are now shown
for all measurements in the readout area.

12.10 Compensation

Notable changes from the 8200-series products include:

* Compensating the Mainframe and all modules now require separate
operations due to external signal connection recommendations in order
to achieve optimal performance. The "All" operation has been
replaced with an "All Modules" operation, with the Mainframe the new
default upon displaying the Compensation dialog.
* Mainframe compensation is 4-5 times faster.

12.11 Masks

Custom masks and standard masks that are file-based are now
identified by the name being displayed in bold-faced dark blue text in the
mask readout title.

12.12 Preferences / GPIB Device/Controller Switching

Switching the instrument's GPIB mode between Device and Controller
operation is now integrated into the TekScope application within the
Utilities --> Preferences -->GPIB Configuration dialog. Changing to
(or from) Controller mode requires an instrument reboot.

12.13 Programmatic Interface

Notable changes from the 8200-series products include:

* PHAseref:CHAR is now supported by *OPC
* CURVe queries are typically 2-3 times faster
* An application note that details the programmatic interface
differences between the DSA8200 and DSA8300 can be found at:
http://www.tek.com/products/oscilloscopes/dsa8300/

12.14 Defaults

Notable changes from the 8200-series products include:

* The default trigger source is now Clock with a clock source
selection of Clock/Prescale.
* The default Scope Mode (Clock Trigger Source) is Eye.
* The default record length for the Main and all Magnified timebases
is 4000.
* The default horizontal Display Scale mode for each Unit type is:
Seconds (Per Division), Bits (Per Screen), and Distance (Per
Screen).
* The default Measurement Signal Type is now NRZ (both in the
Measurement setup dialog and in the Measurement toolbar).
* The default Autoset Mode is now NRZ Eye. Note: If you select Period
or Edge as the autoset mode, an autoset operation when using
clock pattern triggering will result in approximately 20 unit
intervals or bits on screen (assuming a pattern lock can be found).
* The default Autoset TDR Options Display Incident Edge is now Off.
* The default Waveform Database Grading Method is now Binary 8.

12.15 Clock Recovery Instrument Support

The latest application supporting Tektronix Clock Recovery
Instruments (80A07, CR125, CR175 and CR286) is installed. It can be launched
by selecting CRxxx Control in the scope's Application menu or by
selecting Start --> All Programs --> Tektronix Applications --> Clock
Recovery --> CRxxx Control.

New GPIB commands have been added to set and query the Tektronix
Clock Recovery Instruments.

TRIGger:CLKRec:CRC:EQUalizer Set equalizer to a value in range 0-10 (1)

TRIGger:CLKRec:CRC:EQUalizer? Return the equalization value (1)

TRIGger:CLKRec:CRC:MODElnum? Return a string identifying the model

TRIGger:CLKRec:CRC:CAPabilities? Return a bit mask of instrument
features

TRIGger:CLKRec:CRC:HALfrate? Return whether clock rate is half the
input rate

TRIGger:CLKRec:CRC:LOCKFp Lock/unlock the clock recovery instrument
front panel

(1) This applies only to the CR286A.

12.16 Additional Standards and Optical Filters

Support has been added for the following standards.

Standard PI Token Bit Rate

40GBASE-FR ENET41250 41.25000 Gb/s
40GBASE-LR4 ENET40GB_LR4 10.3125 Gb/s
40GBASE-SR4 ENET40GB_SR4 10.3125 Gb/s
100GBASE-ER4 ENET100GB_ER4 25.78125 Gb/s
100GBASE-LR4 ENET100GB_LR4 25.78125 Gb/s
100GBASE-SR10 ENET100GB_SR10 10.3125 Gb/s
8GFC FC8500FINAL 8.5000 Gb/s
16GFC MM r6.1 FC14025_MMR6_1 14.02500 Gb/s
16GFC SM r6.1 FC14025_SMR6_1 14.02500 Gb/s

Support has been added for the following filters.

Filter PI Token

INF2500 INF2500 (1)
INF5000 INF5000
OBSAI 6.144 Gb/s OBSAI6144
CPRI 7.373 Gb/s CPRI7373
8GFC FC8500FINAL
FEC12.50 Gb/s FEC12500 (1)
16GFC r6.1 FC14025
INF14063 INF14063
40GBASE-R4 ENET103R4
100GBASE-R4 ENET257R4
100GBASE-R10 ENET103R10
INF25781 INF25781
OTU-4 OTU27952
40GBASE-FR ENET41250
FullPowerElecOut FPELECOUT (2)

(1) INF2500 and FEC12500 are new synonyms for the existing INFINIBAND and
SFEC12500 filters, respectively. Either the new or old names can be
used to select a filter in GPIB commands but queries always return
the new names.

(2) This is not a filter but instead turns on the full power electrical
output for optical modules supporting this feature.

FC11317 is now supported by the command HORIZONTAL:BITS:STANDARD.

13 Known Limitations and Operational Notes

The following describes known limitations and other operational notes
concerning this software release.

* No backwards compatibility with DSA8200 (or earlier) setup files
* Do not change the display resolution of the primary display
* Do not change the language from English
* Installing National Instruments SW may cause problems with TekVISA
* TekVISA install during TekScope application re-install brings up
additional TekVISA install dialogs
* Data:Clock ratio must be specified correctly to ensure optimal
performance.
* The AutoSync function might fail to find the correct parameters on
signals with significant overshoot or undershoot
* Parameter Error or inconsistent setting may be observed after
initial installation or module configuration change
* Changing Windows 7 Appearance and Personalization settings is not
recommended
* NRZ or RZ Autoset without a standard mask requires that the
appropriate bit rate be set
* Dark level calibration required to produce accurate measurements of
optical signals
* Trigger source must be set TDR for TDR testing (recommend using TDR
presets)
* Certain math/measurement definitions may not be recalled properly
* Adjusting waveform position while stopped does not update the
histogram readouts
* Potential problems with recall "setup from last session" or "saved
setup" Start-up user preferences
* Custom masks sometimes do not get recalled correctly when part of a
setup
* User and Custom masks not recalled properly when mask margins are
part of setup
* Instrument fails to acquire or is unresponsive after removing 82A04
Phase Reference module
* TekScope application will not stay minimized

13.1 No backwards compatibility with DSA8200 (or earlier) setup files

Previous setup files saved for the DSA8200 (or earlier 8000-series
oscilloscopes) are not compatible with the DSA8300. Attempting to
recall earlier setup files may cause unexpected behavior or cause the
instrument to stop operating.

The 6.2 and later product software media contains an independent
utility application named the DSA8300 Setup File Translator to help
convert 5.x or later DSA8200 setup files to DSA8300 setup files. On
instruments shipped with TekScope 6.2 and later, this application is
pre-installed and available from the Start menu or shortcut on the
desktop. Upgrading existing DSA8300 instruments requires manual
installation. To do so, run the setup.exe from the TekScope media
SetupFileTranslator folder. This application does not show up in the TekScope
Applications menu

13.2 Do Not Change the Display Resolution of the Primary Display

The primary display screen resolution is set at the factory to
1024x768. This setting is required for proper operation of the scope
application. Do not change this setting. If the setting does get changed,
use one of the following procedures to get back to the correct
resolution.

Method 1:

1. Right click on the desktop and select Screen Resolution
2. Change Resolution to 1024x768

Method 2:

1. From Start menu select Control Panel
2. Select Adjust Screen Resolution under Appearance and
Personalization
3. Change Resolution to 1024x768

Method 3:

1. Select File-->Exit from the TekScope menu
2. Perform Method 1 or 2 above
3. Double-click on the TekScope Application icon on the desktop to
restart the application

13.3 Do Not Change the Language from English

Proper operation and display of the TekScope application requires
that the language be set to English. If changed, use the following
procedure to return the language to English.

1. From Start menu select Control Panel
2. Select Change display language under Clock, Language, and Region
3. Select English under Choose a display language and click OK
4. Click the Log off now button
5. Log back in
6. On the desktop, right-click and choose Personalize
7. Select the DSA8300 Theme (under My Themes) and dismiss the dialog

13.4 Installing National Instruments Software May Cause Problems with
TekVISA

The instrument comes pre-installed with Tektronix's Analysis and
Connectivity Software which includes the VISA interface. If you install
a National Instruments software package that includes NI's VISA, it
will over-write the Tek VISA. To avoid this problem, choose Custom
Install when installing NI's software and choose not to install NI
VISA.

If NI VISA is inadvertently installed on your scope, you must
re-install TekVISA. You can do this by inserting the Product Software media
that came with your instrument and selecting the "TekVISA Analysis
and Connectivity Software" option.

13.5 TekVISA install during TekScope application re-install brings up
additional TekVISA install dialogs

As part of its uninstall/install, the TekVISA included in this
release (v4.0.0) may display additional dialogs of its own when
re-installing the TekScope application. Simply continue or finish when
requested by these dialogs.

13.6 Data:Clock ratio must be specified correctly for optimal performance

When using the internal clock recovery path from a clock recovery
module (Trigger Source is C1 Clock Recovery or C3 Clock Recovery) when
Scope Mode is Pattern, the Data:Clock ratio in the Pattern
Sync/FrameScan Setup dialog must be set to match the divide ratio of the
clock recovery module to assure best performance. If the Data:Clock
ratio is not set as specified in the following table, acquisition rate
could be significantly slowed.

Module Data Rate Data:Clock Ratio

80C07B-CR1 N/A 1:1
80C08C-CR1,-CR2,-CR4 N/A 16:1
80C11-CR1,-CR2,-CR3,-CR4 N/A 16:1
80A05 155M to <2.7G 1:1
>= 2.7G 16:1

For Data:Clock ratios for legacy 8000 series modules with internal
clock recovery, contact Tektronix Support.

13.7 The AutoSync function might fail to find the correct parameters on
signals with significant overshoot or undershoot

The AutoSync function will automatically find the data rate, pattern
length and data to clock ratio for the specified input signal.
However, if the signal has too much overshoot or undershoot, the function
might not correctly determine all of these parameters. This might
occur for an optical signal that is unfiltered. To avoid this
problem, use filtering with optical signals when using the AutoSync
function.

13.8 Parameter Error or inconsistent setting may be observed after
initial installation or module configuration change

The instrument contains an initial factory setup file to be recalled
upon the first boot after installation. This factory setup file was
prepared on an instrument with no modules installed. This setup is
completely compatible with all possible module configurations, except
for module configurations that include clock recovery hardware.

The first time an instrument with clock recovery hardware is booted,
a harmless "parameter error" may be observed. This error may be
safely ignored and should not be observed on subsequent boot cycles.
Similar parameter errors may be observed when the module configuration
changes (modules added, removed, replaced with different module
types, extender cables added or removed) and are typically innocuous.
When this error is observed, the associated parameter typically
assumes the default value.

NOTE: To ensure instrument settings consistency when using the "Setup
from the last session" or "Saved setup" Start-up feature, it is
highly recommended that a Default Setup be performed once the
instrument has power-up and the TekScope application is active.

13.9 Changing Windows Appearance and Personalization settings is not
recommended

Modifying Windows look and feel properties such as fonts, text sizes,
and desktop themes is

strongly discouraged as they may be incompatible with the TekScope
application or produce irregularities. The only Personalization theme
that is guaranteed to operate correctly with the TekScope
application is the "DSA8300" theme.

13.10 NRZ or RZ Autoset without a standard mask requires that the
appropriate bit rate be set

Performing an NRZ or RZ Autoset without a standard mask requires that
the appropriate bit rate be set before initiating the Autoset. This
can be done via the UI from the Horizontal setup dialog by setting
the Bit Rate or Comm Standard field. Alternatively, you can set the
bit rate via the programmer interface with the command:
HORizontal:BITS:BITRate . Additionally, you must specify the Autoset type.
This can be done by selecting "Utilities --> Autoset Properties..."
and choosing the appropriate autoset type. The autoset type can
also be selected via the programmer interface by using the
:AUTOSet:TYPE command.

13.11 Dark level calibration required to produce accurate measurements of
optical signals

A Dark Level Calibration should be performed on optical channels
before obtaining measurement results. In particular, Extinction Ratio
requires this calibration for meaningful results.

NOTE: The Extinction Ratio measurement is not supported on electrical
channels.

13.12 Trigger source must be set to TDR for TDR testing (recommend using
TDR presets)

For TDR testing, the trigger source must be set to TDR. The trigger
source is not coerced to TDR automatically when TDR Step generators
are manually turned on (see the TDR setup menu).

Tektronix recommends using TDR Preset when setting up TDR. TDR Preset
not only sets the trigger source to TDR, it also turns on the TDR
step generator and acquisition hardware for the selected channel, and
scales and positions the signal so that the incident edge of the
TDR pulse is visible on screen. One of the two following setup methods
is recommended:

Method 1:

1. Connect the channels to be used to the Device-Under-Test (the
instrument supports TDR on up to eight channels simultaneously).
2. Press the TDR Preset button in the TDR setup menu for each
channel used or Press the Diff Preset button to preset a channel pair
for true differential TDR.
3. Following any TDR preset, you can specify step polarity and
display units for each TDR channel as desired.

Method 2:

1. Connect the channels to be used to the Device-Under-Test (the
instrument supports TDR on up to eight channels simultaneously).
2. Select TDR as the trigger source from the toolbar Trigger source
control.
3. Turn on or select one of the channels to be used for TDR.
4. Press the Single or Differential TDR Preset button in the toolbar
(to the far right of the toolbar). These buttons operate on the
selected channel (or module channel pair in the case of a
differential preset). Note: The buttons will not be enabled if the
channel does not support TDR.
5. Repeat 3 & 4 for other channels or channel pairs as necessary.
6. If necessary, go to the TDR setup dialog to change step
polarities or display units.

13.13 Certain math/measurement definitions may not be recalled
properly.

This release may require that you rebuild certain Math waveform and
measurement definitions, rather than just save and recall them. For
example, the instrument allows you to define such sophisticated math
waveform and automatic measurements as follows:

Example 1: MATH1 = AVERAGE(C1-MEAS1); where MEAS1 = MEAN(R1)

Example 2: MEAS1 = AVERAGE(M1)

While this flexibility makes for very powerful math and measurement
systems, it also complicates the saving and restoring of the
instrument state when using Save and Recall Setups or the *LRN? GPIB
command. For the math waveform example above (Example 1), it is critical to
restore the MEAS1 definition prior to restoring the MATH1
definition. However, for the automatic measurement above (Example 2), it is
critical to restore the math definition prior to the measurement
definition.

This release of the Product Software does not attempt to rationalize
the order in which it restores instrument settings using a Recall
Setup operation or *LRN? command. As a result, it may be necessary to
rebuild definitions such as those just discussed rather than just
saving and recalling them.

13.14 Adjusting waveform position while stopped does not update the
histogram readouts

When the instrument is in a stopped state, changing the waveform
position will not update the histogram readouts.

13.15 Potential problems with recall "Setup from last session" or "Saved
setup" Start-up user preferences

If the Start-up user preference is configured to recall "setup from
last session" or "saved setup" on power-up and for any reason the
instrument software hangs during power-up, it is possible the setup
file that the instrument is attempting to recall is corrupted. If
rebooting the instrument does not resolve the problem, remove the
following file or remove the file specified in the "saved setup" text box:
"C:\Program Files\Tektronix\TekScope\Setups\Current.stp".

If the Start-up user preference is configured to recall "setup from
last session", the File Name error displayed in the Error Message
dialog on the next restart may be safely ignored. Subsequent reboots
should not produce this error.

If the Start-up user preference is configured to recall "saved
setup", save a new setup to the location specified in the "saved setup"
text box. Subsequent reboots should not produce a File Name error.

13.16 Custom masks sometimes do not get recalled correctly when part of a
setup

Saving and recalling setups where a Custom mask is the selected mask
may not get recalled correctly. Reselecting Custom as the
Communication Standard restores the custom mask to its correct state.

13.17 User and Custom masks not recalled properly when mask margins are
part of setup

User or Custom masks, when saving and recalling a setup in which Mask
Margins is enabled (On), do not get recalled correctly. For Custom
masks, reselecting Custom as the Communication Standard restores the
custom mask to its correct state. An alternate solution for both
User and Custom masks is to turn off mask margin testing before saving
the setup, then turning mask margin testing back on after the setup
recall.

13.18 Instrument fails to acquire or is unresponsive after removing 82A04
Phase Reference module

This issue can occur in one of two ways:

1. When re-powering the instrument after an 82A04 Phase Reference
module is removed and the Start-up User Preferences is set to
"Setup from the last session" or "Saved setup".
2. When recalling a setup that included an 82A04 module but where
the module is no longer installed in the instrument.

Under condition one above (or any pending module configuration
change), it is recommended that a Default Setup be performed before
powering down the instrument and changing the module configuration. If
starting up from a Saved Setup, either change the User Preferences or
delete the referenced setup file. Turning Channel 1 off (if on) may
also clear the problem. Please refer to sections 4.19 and 4.27 for
related issues, solutions, and additional information.

13.19 TekScope Application will not stay minimized

On occasion, one of the front panel continuous-type knobs - Vertical
Position, Vertical Offset, Horizontal Position, Trigger Level - may
generate intermittent front panel change notifications to the
application based on its rotational setting and therefore cause it to be
maximized. Adjust one or more of the knobs slightly to eliminate this
behavior.

13.20 TekVISA LAN Server does not start up with default User Account
Control Setting

The default Windows 7 User Account Control setting, as configured
from the factory, is set to "Default - Notify me only when programs try
to make changes to my computer". With this setting, the TekVISA LAN
Server property "Start server on system power-up" cannot be changed
from its default non-enabled setting. There are two alternatives:

* Start the LAN server manually after every power-up or reboot with

Start-->All Programs-->TekVISA-->TekVISA LAN Server Control

(right-click and "Run as administrator")

OR

In the lower right Windows System Tray pop-up, right-click the
TekVISA LAN Server Control and select "Start VXI-11 Server".

* Enable the "Start server on system power-up" LAN Server property by
changing the User Account Control (UAC) setting with the
following sequence:

Change the UAC setting to "Never Notify". To do this you must have
an account with Administrator privileges. Refer to Windows
documentation for how to change the UAC setting.

Reboot the instrument.

Access the TekVISA LAN Server Properties from the System Tray icon,
and check (enable) the "Start server on system power-up" control.

Reboot the instrument (the LAN server should now be running).

If desired, change the UAC level back to the original setting and
reboot.

(Perform the above sequence any time you wish to change the LAN
Server properties).

13.21 Acquisition waveform count reset when doing Mask Autofit

When doing a "Mask Autofit to Data" operation, the number of
acquisitions (Waveform Count) in the upper Status Bar gets reset to zero due
to the automatic adjustment of the Horizontal Position and
Reference settings. However, the "#Wfms" readout in the mask readout area
remains according to the number of waveforms used in the mask test
operation.

For standardized mask testing processes where Mask Autofit is to be
used, it is recommended to use the acquisition "Stop After
Conditions" of "Mask Samples" or "Mask Waveforms". The status of these
conditional operations also appears in the upper Status Bar but is not
affected by the Mask Autofit operation as they are based on the
underlying data in the Waveform Database (which is not affected by the Mask
Autofit operation).

13.22 Ink-Saver mode gets reset to Normal on Default Setup

The Page Setup Image mode (Normal or Ink-Saver) gets reset upon a
Default Setup. It also is not saved and recalled with a Setup file.
Therefore, it must be set to the desired setting after any Default
Setup is performed from either the user or programmatic interfaces (*RST
or RECAll:SETUp FACtory). NOTE: This mode can be controlled from
the programmatic interface with the HARDCopy:INKSaver command.

13.23 Programmatic interface activation of 80SJNB

DSA8300 firmware versions prior to 6.1.x.x allowed activation of the
80SJNB application with the commands APPlication:ACTivate
"80SJNBEssentials" or APPlication:ACTivate "80SJNBAdvanced" (in addition to
the previous "80SJNB" string). Only the "80SJNB" string is now
supported.

13.24 DSA8300 Programmable Interface changes guide (from earlier
8000/8200-series sampling oscilloscopes)

A PDF document is included on distribution media in this release that
describes the programmatic interface differences between previous
8000/8200-sampling oscilloscopes and the DSA8300. Refer to file
85W-27063-2.pdf that is available on the DSA8300 Digital Serial Analyzer
Product Software media or on the instruments hard drive at location
C:\Program Files\Tektronix\TekScope\Documents.

14 Programmatic Interface (PI) Specific Limitations

The Programmatic Interface (PI) of this release of the Product
Software has the following limitations:

* Caution is required when controlling instrument from front panel
and PI simultaneously.
* Proper command sequencing is required when specifying user masks.
* SYNC:TIMEOUT value may need to be adjusted.
* The instrument software may hang if GPIB commands are received
before the boot process has completed.

14.1 Caution is required when controlling instrument from front panel
and GPIB simultaneously

Precautions should be taken when controlling the instrument from the
GPIB and the front panel and/or graphical user interface
simultaneously. Before attempting GPIB control of the instrument, make sure you
do not have any dialog on screen that requires confirmation. In
such a case, a GPIB timeout will occur as the instrument application
will not acknowledge any other control activities until the user has
responded to its confirmation request. Other dialogs that are known
to lock out GPIB control include the Calibration, Compensation, and
Diagnostic dialogs.

14.2 Proper command sequencing is required when specifying user masks

This release requires that, when you are defining a user mask over
GPIB, you first send the MASK:STANdard USERMask command. After sending
this command, you may specify the polygons with the MASK:MASK
commands.

14.3 SYNC:TIMEOUT value may need to be adjusted

A mechanism is provided to prevent a response to certain data value
queries before the query is ready to provide a value consistent with
the instrument state. The SYNC:TIMEOUT command sets or queries the
default synchronization timeout for commands that rely upon data
production by the instrument. The default timeout value of 3 seconds
should be appropriate for most applications, but may need to be
adjusted under certain conditions:

* Slow waveform acquisition rate: When a related query is issued to
the instrument, if the combination of record length, averaging,
FrameScan, trigger holdoff, and trigger source repetitive rate result
in a waveform acquisition rate which is slow compared to the
synchronization timeout, the synchronization timeout may expire before
results are produced by the instrument.
* Unforeseen user configurations: Any configuration that
significantly influences the rate at which the instrument produces results
could potentially result in a timeout. This could include
installation of third party software that consumes a significant amount of
CPU cycles or system resources.

14.4 The instrument software may hang if GPIB commands are received
before the boot process has completed

When the instrument is booting after a power cycle or restart
operation, it is necessary to wait until the instrument has completed
booting before sending GPIB commands. An indicator that the instrument
has completed the boot process is the appearance and subsequent
disappearance of the Diagnostics results dialog.

NOTE: The Diagnostics results dialog must be dismissed in order for
the instrument to process GPIB commands. In the absence of a
diagnostics failure, this occurs automatically in 2-3 seconds.

15 Performance Enhancement Tips

While the DSA8300 Series instruments provide the highest acquisition
rates of any ultra-high performance oscilloscope available today,
observing the following recommendations can enhance this performance:

* For the highest data acquisition rate, set the Record Length to its
maximum value, using the RESOLUTION knob on the front panel.
* If you are using a Waveform Database, turn off all measurements
until after you have completed data acquisition into the Waveform
Database
* Use the automated measurements rather than cursors for the most
accurate measurement results.
* For the best measurement results on signals with relatively fast
transition times, increase the waveform record length beyond the
default 4000 points (use the RESOLUTION knob on the front panel) if
you are not using a Waveform Database. This will increase the
number of points acquired on any rising or falling edge.
* Enabling statistics (or to a lesser extent, annotations) for
measurements on a vector trace may reduce Waveform Database accumulation
rates.
* For maximum sample acquisition rate avoid assigning different
deskew values across multiple channels to be acquired. For sampling
modules with both deskew and delay adjustments - 80E07, 80E08, 80E09
and 80E10 - you can time align channels in the same module using
the Delay control without adversely impacting the sample
acquisition rate. Another option is the use of an external phase adjuster
(variable delay line). Refer to the DSA8300 Quick Start User Manual
for additional information.

16 GPIB Programming Tips

The DSA8300 uses a pipelined architecture for data acquisition,
control and query commands. As a result, care must be exercised to ensure
that the results returned from data or measurement queries are
those that were expected. A number of methods exist to flush the
acquisition and control queues to help obtain expected results. A few of
these are listed as programming tips below:

* Be sure to set up the instrument to Stop After Acquisitions = 1 if
you need to guarantee that you have acquired a new waveform. You
do this using the following sequence of commands:

ACQuire:STOPAfter:CONDition ACQWfms
ACQuire:STOPAfter:COUNt 1

* Be sure to wait until the acquisition is complete by using any of
the synchronization commands (*OPC, *OPC? *WAI, and BUSY?).

The above actions are required because the amount of time required
to acquire a complete waveform depends on a variety of factors: the
periodic rate of the trigger signal or pattern; the specified record
length; whether averaging and/or FrameScan acquisition is turned on
(and, if so, how many acquisitions must be averaged); the requested
Trigger Holdoff; and so on.

In addition:

* Be sure to include at least 100 ms of delay in the loop that
queries instrument status when synchronizing your test procedure to the
instrument (using a BUSY? Query, for example). If you do not set
sufficient time between status queries, the instrument will have
very little time to acquire waveforms and process data.
* Be sure to wait for the time listed below after sending each of the
following commands before querying for any results that depend on
the command sent:

CH:FILTer:VALue 6 seconds
CH:BANdwidth:VALue 6 seconds
SAVe:WAVEform 3 seconds
TRIGger:CH:CLKRec:VALue 2 seconds

17 Analysis and Connectivity Software

Several optional software components are available to support control
and data transfer between the instrument and numerous
software-development and data-analysis tools.

17.1 Overview

The Analysis and Connectivity software provided with this instrument
may be used to:

* Gather instrument data (waveforms, measurements) and export it to
familiar, off-the-shelf analysis tools, such as Microsoft Excel,
MathWorks' MatLab and MathSoft's MathCad.
* Interface with numerous software development environments, such as
Microsoft's Visual C++ and Visual Basic, National Instruments'
LabVIEW and LabWindows, along with many other
Microsoft-Windows-compatible development tools.

The following software components are available with this release:

* TekVISA 4.0.0
* TekVISA ActiveX Control (TVC)
* VXI 11.2 LAN Server

17.2 Updates

Analysis and Connectivity Software updates are periodically available
for this product at:

http://www.tek.com/Measurement/scopes/index/prodindex_sampling.html

Information on sampling instruments is available by navigating to the
Sampling Oscilloscopes page. Additionally, the web site will
periodically be updated with demonstration and example applications to
enhance the instrument functionality.

Because Sampling Oscilloscopes are significantly different in
architecture than other types of oscilloscopes, the most recent release of
the Analysis and Connectivity Software may not be correct for your
instrument. Only download and install updates for the Analysis and
Connectivity Software that specifically reference the DSA8300 Digital
Serial Analyzer. You may find the latest connectivity software by
searching for TekVISA on the Tektronix web site.

17.3 Instrument Installation

Analysis and Connectivity Software is pre-installed on the DSA8300
sampling oscilloscope and is included in this release of the Product
Software. By default, the Analysis and Connectivity Software is
automatically installed when installing the product software from the
Product Software media. The Product Software media also provides for
installing the Analysis and Connectivity Software on any personal
computer running Microsoft Windows (see PC Installation below).

Installing the Analysis and Connectivity Software will add a TekVISA
folder to the Start-->All Programs Menu. In the TekVISA folder, you
will find the following items that provide additional information:

* OpenChoice Call Monitor
* OpenChoice Instrument Manager
* OpenChoice Talker Listener
* Release Notes
* TekVISA ActiveX Control Help
* TekVISA LAN Server Control
* TekVISA Programming Manual
* TekVISA Quick Reference Card
* TekVISA Resource Manager Help
* TekVISA Resource Manager

17.4 PC Installation

You may install TekVISA on a PC running Windows XP Professional or
Windows 7. Once installed, your PC will have the Start-->All
Programs-->TekVISA folder as described above (the TekVISA LAN Server Control
is instrument specific and will not appear on the PC).

17.5 Excel and Word Toolbars

Excel and Word toolbars are not included with this version of the
Analysis and Connectivity Software.

18 Sample Programs

These sample programs illustrate methods you can use to control the
instrument from the GPIB interface. Within the product-software
media, you will find the program listings for these examples, which were
written in Visual C++, version 6.0, and generated using the
AppWizard program.

NOTE: These sample programs do not use TekVISA. Samples that use
TekVISA are found in directory: C:\VXIpnp\WinNT\TekVISA\VISASamples.

NOTE: These programs do not run from within your instrument. These
sample programs assume a physical GPIB connection between an external
controller and the instrument. Although capabilities have been
introduced to allow the instrument to operate as a controller,
"loop-back" operation is not supported by physical GPIB. The TekVISA samples
provide examples of applications that are capable of running within
the instrument.

The sample programs are located in a self-extracting zipped file on
the product SW media in a folder called Samples\NI488.2 Samples (for
example, if your drive designation is E:, then the file is located
in E:\Samples\NI488.2 Samples). To extract this zipped file, simply
double click on the Samples.exe file within the Samples folder. The
programs will be extracted to C:\Samples by default. After unzipping
this directory, you will find the source code for each example is in
the Sources folder, and the programs are under a Programs folder.

All the example programs assume that:

* The instrument is set as DEV1 with address of 1, and the PC
(controller) set as GPIB0
* A valid signal is connected to the instrument.

NOTE: The sample programs were originally written for the 8000/8200
Series products and may not work as is for the DSA8300 without
changes to the source files.

To reassign the name of your instrument, you can use the Control
Panel-->System-->Network Identification-->Properties button (NOT Network
ID) or you can enter your current device name into the Edit box
within each program. This is true except for the Mask example, where
the board address is 0 and it is hard coded.

Four of the sample programs use any variety of Electrical Sampling
module except for the following:

* Mask example uses an Optical Sampling module, preferably the
80C01-CR.
* TDR example requires an 80E04 Electric module. Will not work with
the 80E08 or 80E10 without code modifications.

The example software includes:

* Meas: Performs timing or an amplitude measurement on the selected
waveform and displays the measurement.
* WfmTransfer: Transfer out the selected waveform's horizontal
timebase and its vertical scale into a file on your PC (controller).
* Capture: Captures the screen into a selected file, or a printer.

NOTE: The saved file will be on your instrument. Please make sure
that you have a default printer selected before running this program.

* TDR: Displays the attached cable length in centimeters.

NOTE: Requires an 80E04 sampling module.

* Mask: Makes an eye pattern evaluation against a mask; counts mask
hits, and executes an action.

NOTE: The saved file will be on your instrument. Please make sure
that you have a default printer selected before running this program.

19 Contacting Tektronix

Orders And Quotes Contact for the United States

The USA Customer Support Center is open to help you place orders and
request quotes, Monday through Friday, 5 AM to 5 PM Pacific Standard
Time (PST).

Phone: (800) 833-9200 Option 1

Note: U.S. Government agencies should contact (800) 682-1210

An on-line form is available for requesting quotes on the Tektronix
website www.tektronix.com. Navigate to the Buy area using the
navigation bar on the www.tektronix.com homepage and select Request a
Quote.

Service Center Contact for the United States

You can depend on Tektronix Support for your service needs. Our
"Enable First" business practices eliminate fine print, exclusions,
surprises or delay, ensuring you the most credible, reliable, risk
mitigation commitment in the industry.

Phone: (800) 833-9200 Option 2
Fax: (503) 627-6260
E-mail: [email protected]
Web: www.tektronix.com/support

Technical Support Contact for the United States

Highly qualified and experienced Technical Support Specialists are
available to assist you in these areas: Applications, Product
Operations, Software Operation, Technical Specifications and Product
Replacement.

Support staff is available from 6 AM to 5 PM Pacific Standard Time
(PST), Monday through Friday, excluding corporate holidays.

Phone: (800) 833-9200 Option 3
(503) 627-2400
Fax: (503) 627-5695
E-mail: [email protected]
Web: www.tektronix.com/support

Worldwide Headquarters Contact Information

Please contact your local Tektronix Sales or Distributor office.
Refer to our web site at www.tektronix.com for listings of those
offices.

Tektronix, Inc
14200 SW Karl Braun Drive
P. O. Box 500
Beaverton, OR 97077

20 Notices

Microsoft and Windows are registered trademarks of Microsoft
Corporation.

Adobe Reader is a copyright of Adobe Systems Incorporated.