Tektronix TBS1042, TBS1152, TBS1062, TBS1022, TBS1102 User Manual

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TBS1000 Series

ZZZ

Digital Storage Oscilloscopes

User Manual

*P077076000*

077-0760-00

TBS1000 Series

ZZZ

Digital Storage Oscilloscopes

User Manual

Revision A

www.tektronix.com

077-0760-00

Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries or suppliers, and are protected by national copyright laws and international treaty provisions.

Tektronix products are c overed 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 and TEK are registered trademarks of Tektronix, Inc.

OpenChoice™ is a registered trademark of Tektronix, Inc.

PictBridge is a registered trademark of the Standard of Camera & Imaging Products Association CIPA DC-001-2003 Digital Photo Solutions for Imaging Devices.

Contacting Tektronix

Tektronix, Inc. 14150 SW Karl Braun Drive P.O . Bo x 500 Beaverton, OR 97077 USA

For product information, sales, service, and technical support:

In North America, call 1-800-833-9200. Worl d wide , vi s it www.tektronix.com to ﬁnd contacts in your area.

TBS1000 Oscilloscopes

Warranty

Tektronix war years from the date of original purchase from an authorized Tektronix distributor. If the product proves defective during this warranty period, Tektronix, at its option, either will repair the defective product without charge for parts and labor, or will provide a replacement in exchange for the defective product. Batteries are excluded from this warranty. Parts, modules and replacement products used by Tektronix for warranty work may be new or reconditioned to like new performance. All replaced parts, modules and products become the property of Tektronix.

In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration of the warranty period and make suitable arrangements for the performance of service. Customer shall be responsib shipping charges prepaid, and with a copy of customer proof of purchase. Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix service center is located. Customer shall be responsible for paying all shipping charges, duties, taxes, and any other charges for products returned to any other locations.

This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate maintenance and care. Tektronix shall not be obligated to furnish service under this warranty a) to repair damage resulting from attempts by personnel other than Tektronix representatives to install, repair or service the product;

epair damage resulting from improper use or connection to incompatible equipment; c) to repair any damage

b) to r or malfunction caused by the use of non-Tektronix supplies; or d) to service a product that has been modiﬁed or integrated with other products when the effect of such modiﬁcation or integration increases the time or difﬁculty of servicing the product.

THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THE PRODUCT IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. TEKTRONIX' RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE

D EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY.

AN TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.

rants that the product will be free from defects in materials and workmanship for a period of ﬁve (5)

le for packaging and shipping the defective product to the service center designated by Tektronix,

[W19 – 03AUG12]

TPP0101 and TPP0201 Probes

Warranty

Tektronix war year from the date of shipment. If any such product proves defective during this warranty period, Tektronix, at its option, either will repair the defective product without charge for parts and labor, or will provide a replacement in exchange for the defective product. Parts, modules and replacement products used by Tektronix for warranty work may be new or reconditioned to like new performance. All replaced parts, modules and products become the property of Tektronix.

In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration of the warranty period and make suitable arrangements for the performance of service. Customer shall be responsible for packag charges p repaid. Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix service center is located. Customer shall be responsible for paying all shipping charges, duties, taxe s, and any other charges for products returned to any other locations.

function caused by the use of non-Tektronix supplies; or d) to service a product that has been modiﬁed or

or mal integrated with other products when the effect of such modiﬁcation or integration increases the time or difﬁculty of servicing the product.

KTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL,

TE OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.

rants that this product will be free from defects in materials and workmanship for a period of one (1)

ing and shipping the defective product to the service center designated by Tektronix, with shipping

[W2 – 15AUG04]

Table of Contents

General Safety Summary ......................................................................................... iv

Compliance Information ......................................................................................... vii

EMC Compliance......................................... ................................ ................... vii

Safety Compliance............................................................................................ ix

Environmental Considerations ................ ................................ .............................. xi

Preface............................................................................................................. xiii

Help System.................................................................................................. xiii

Firmware Updates Through the Internet ....... .................................. ......................... xiv

Conventions ................................................................................................... xv

Getting Started . .. .. . ... ... ... . ... ... ... .. .. . ... ... ... .. .. . ... ... ... . ... ... ... .. .. . ... ... ... .. .. . ... ... ... . ... ... ... . 1

General Features .............................. ................................ ................................. 1

Installation............. .................................. ................................ ....................... 2

Functional Check .............................................................................................. 4

Probe Safety. ................................ .................................. ................................ . 5

Voltage Probe Check Wizard ................................................................................. 5

Manual Probe Compensation................................................................................. 7

Probe Attenuation Setting. ... ... ... ... . .. . ... ... ... ... . . .. . ... ... ... ... .. .. . ... ... ... ... . .. . ... ... ... ... . .. . .. 7

Current Probe Scaling ......................................................................................... 8

Self Calibration ......................... ................................ ................................ ....... 8

Operating Basics.................................................................................................... 9

Display Area ................................................................................................... 9

Using the Menu System........................................ ................................ .............. 12

Vertical Controls ........................ ................................ ................................ ...... 13

Horizontal Controls........................................................................................... 14

Trigger Controls............................................................................................... 15

Menu and Control Buttons................................................................................... 15

Input Connectors.............................................................................................. 18

Other Front-Panel Items...................................................................................... 18

Understanding Oscilloscope Functions . .. .. . ... ... ... .. .. . ... ... ... ... . .. . ... ... ... .. .. . ... ... ... ... . .. . ... ... . 19

Setting Up the Oscilloscope . ... . .. . ... ... ... .. .. . ... ... ... .. .. . ... ... ... . ... ... ... . . .. . ... ... ... .. .. . ... ... . 19

Triggering................ ................................ .................................. .................... 20

Acquiring Signals....................... .................................. ................................ .... 22

Scaling and Positioning Waveforms . ... ... ... .. .. . ... ... ... . ... ... ... .. .. . ... ... ... . ... ... ... .. .. . ... ... ... 23

Taking Measurements ........................................................................................ 25

Application Examples............................. .................................. .............................. 29

Taking Simple Measurements ............................................................................... 30

Using Autorange to Examine a Series of Test Points. ................................ .................... 35

Taking Cursor Measurements ............................................................................... 36

Analyzing Signal Detail...................................................................................... 40

TBS1000 Series Oscilloscopes User Manual i

Table of Contents

Capturing a Sin

Measuring Propagation Delay............................... ................................ ................ 43

Triggering on a Speciﬁc Pulse Width................. ................................ ...................... 44

Triggering on a Video Signal...... .................................. ................................ ........ 45

Analyzing a Differential Communication Signal.......................................................... 49

Viewing Impedance Changes in a Network................................................................ 50

Data Logging.................. ................................ .................................. .............. 52

Limit Testing .................................................................................................. 53

Math FFT......................... ................................ ................................ .................. 55

Setting Up the Time-Domain Waveform. ... ... .. .. . ... ... ... .. .. . ... ... ... . . .. . ... ... ... . . .. . ... ... ... . . .. 55

Displaying the FFT Spectrum ............................................................................... 57

Selecting an FFT Window ................................................................................... 58

Magnifying and Positioning an FFT Spectrum . ... ... ... .. .. . ... ... ... .. .. . ... ... ... . . .. . ... ... ... .. .. . ... 61

Measuring an FFT Spectrum Using Cursors............................................................... 62

USB Flash Drive and Device Ports .............................................................................. 63

USB Flash Drive Port ........................................................................................ 63

File Management Conventions............................ .................................. ................ 64

Saving and Recalling Files With a USB Flash Drive . . ... ... ... .. .. . ... ... ... . . .. . ... ... ... .. .. . ... ... ... 65

Using the Save Function of the Print Front Panel Button ................................................ 67

USB Device Port.............................................................................................. 69

Installing the PC Communications Software on a PC .. ... . .. . ... ... ... .. .. . ... ... ... .. .. . ... ... ... . ... .. 70

Connecting to a PC ........................................................................................... 70

Connecting to a GPIB System............................................................................... 72

Command Entry............................................................................................... 72

Connecting to a Printer............. ................................ ................................ .......... 73

Printing a Screen Image...................................................................................... 73

Reference ........................... ................................ .................................. .............. 75

Acquire. .................................. ................................ ................................ ...... 75

Autorange...................................................................................................... 77

Autoset......... ................................ ................................ ................................ 79

Cursor...... ................................ ................................ .................................. .. 82

Default Setup.......................... .................................. ................................ ...... 83

Display......... ................................ ................................ ................................ 83

Help .......... ................................ ................................ .................................. 85

Horizontal................ ................................ .................................. .................... 85

Math.............. ................................ ................................ .............................. 87

Measure........................................................................................................ 88

Print ............................................................................................................ 89

Probe Check ................................................................................................... 90

Reference Menu........................................... ................................ .................... 90

Save/Recall.................................................................................................... 90

gle-Shot Signal ............................................................................. 41

ii TBS1000 Series Oscilloscopes User Manual

Table of Contents

Trigger Contro

Utility .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... ... . ... ... ... ... ... . ... ... ... ... ... .. .. . ... ... ... . . .. . ... 100

Vertical Controls ........................ ................................ ................................ .... 103

Appendix A: Speciﬁcations .......................... ................................ .......................... 107

Oscilloscope Speciﬁcations............................ ................................ .................... 107

Appendix B: TPP0101 and TPP0201 Series 10X Passive Probes Information................... ........ 115

Connecting

Compensating the Probe .................................................................................. 115

Connecting the Probe to the Circuit ...................................................................... 116

Standard Accessories....................................................................................... 117

Optional Accessories ....................................................................................... 118

Speciﬁcations.. ................................ .................................. ............................ 118

Perform

Safety Summary ............................................................................................ 120

Appendix C: Accessories ... ................................ .................................. .................. 123

Appendix D: Cleaning ................ ................................ .................................. ........ 125

General Care ................................................................................................ 125

Cleaning ..................................................................................................... 125

ndix E: Default Setup ..................................................................................... 127

Appe

Appendix F: Font Licenses ..................................................................................... 129

Index

ls............................................................................................... 95

the Probe to the Oscilloscope .. . .. . ... ... ... . . .. . ... ... ... ... ... . .. . ... ... ... ... .. .. . ... ... . 115

ance Graphs............................ .................................. .......................... 119

TBS1000 Series Oscilloscopes User Manual iii

General Safety Summary

General Safet

To Avoid Fi

re or Personal

Injury

ySummary

Review the fo this product or any products connected to it.

To avoid pot

Only qualiﬁed personnel should perform service procedures.

Use proper

certiﬁed for the country of use.

Connect a

instrument before connecting the probe to the circuit under test. Connect the probe reference lead to the circuit under test before connecting the probe input. Disconnect the probe input and the probe reference lead from the circuit under test before disconnecting the probe from the measurement instrument.

Ground the product. This product is grounded through the grounding conductor of the power cord. To avoid electric shock, the grounding conductor must be connected to earth ground. Before making connections to the input or output

nals of the product, ensure that the product is properly grounded.

termi

Observe all terminal ratings. To a vo i d ﬁre or shock hazard, observe all ratings

arkings on the product. Consult the product manual for further ratings

and m information before making connections to the product.

llowing safety precautions to avoid injury and prevent damage to

ential hazards, use this product o nly as speciﬁed.

power cord. Use only the power cord speciﬁed for this product and

nd disconnect properly. Connect the probe output to the measurement

nect the probe reference lead to earth ground only.

Con

Do not apply a potential to any terminal, including the common terminal, that

ceeds the maximum ratingofthatterminal.

Power disconnect. The power switch disconnects the product from the power

urce. See instructions for the location. Do not block the power switch; it must

so remain accessible to the user at all times.

o not operate without covers. Do not operate this product with covers or panels

removed.

Do not operate with suspected failures. If you suspect that there is damage to this product, have it inspected by qualiﬁed service per sonnel.

Avoid exposed circuitry. Do not touch exposed connections and components when power is present.

iv TBS1000 Series Oscilloscopes User Manual

General Safety Summary

Do not operate i

Do not operate in an explosive atmosphere.

Keep product surfaces clean and dry.

Provide prop

on installing the product so it has proper ventilation.

n wet/damp conditions.

er ventilation. Refer to the manual's installation instructions for details

TBS1000 Series Oscilloscopes User Manual v

General Safety Summary

TermsinThisManual

Symbols and Terms o n the

Product

These terms may

WARNING. Warning statements identify conditions or practices that could result

in injury or loss of life.

CAUTION. Caution statements identify conditions or practices that could result in

damage to this product or other property.

These terms may appear on the product:

DANGER in the marking.

WAR NI NG read the marking.

CAUTIO

The following symbol(s) may appear on the product:

appear in this manual:

dicates an injury hazard immediately accessible as you read

indicates an injury hazard not immediately a ccessible as you

N indicates a hazard to property including the product.

vi TBS1000 Series Oscilloscopes User Manual

Compliance Information

This section lists the EMC (electromagnetic compliance), safety, and environmental standards with which the instrument complies.

EMC Compliance

EC Declaration of Conformity – EMC

Meets intent of Directive 2004/108/EC for Electromagnetic Compatibility. Compliance was demonstrated to the following speciﬁcations as listed in the Ofﬁcial Journal of the European Communities:

EN 61326-1:2006, EN 61326-2-1:2006. EMC requirements for electrical equipment for measurement, control, and laboratory use.

123

CISPR 11:2003. Radiated and conducted emissions, Group 1, Class A

IEC 61000-4-2:2001. Electrostatic discharge immunity

IEC 61000-4-3:2002. RF electromagnetic ﬁeld immunity

IEC 61000-4-4:2004. Electrical fast transient/burst immunity

IEC 61000-4-5:2001. Power line surge immunity

IEC 61000-4-6:2003. Conducted RF immunity

IEC 61000-4-11:2004. Voltage dips and interruptions immunity

EN 61000-3-2:2006. AC power line harmonic emissions

EN 61000-3-3:1995. Voltage changes, ﬂuctuations, and ﬂicker

European Contact.

Tektronix UK, Ltd. Western Peninsula Weste r n R o ad Bracknell, RG12 1RF United Kingdom

This product is intended for use in nonresidential areas only. Use in residential areas may cause electromagnetic interference.

Emissions which exceed the levels required by this standard may occur when this equipment is connected to a test object.

To ensure compliance with the EMC standards listed here, high quality shielded interface cables should be used.

The instrument will exhibit ≤ 1.0 division waveform displacement and ≤ 2.0divisionincreaseinpeak-to-peak noise when subjected to radiated interference per IEC 61000-4-3.

The instrument will exhibit ≤ 0.5 division waveform displacement and ≤ 1.0divisionincreaseinpeak-to-peak noise when subjected to conducted interference per IEC 61000-4-6.

Performance Criterion C applied at the 70%/25 cycle Voltage-Dip and the 0%/250 cycle Voltage-Interruption test levels (IEC 61000-4-11). If the instrument powers down upon a voltage dip or interruption, it will take longer than ten seconds to return to the previous operating state.

TBS1000 Series Oscilloscopes User Manual vii

Compliance Information

Australia / New Zealand

Declaration of

Conformity – EMC

Complies with t following standard, in accordance with ACMA:

CISPR 11:2003 accordance with EN 61326-1:2006 and EN 61326-2-1:2006.

he EMC provision of the Radiocommunications Act per the

. Radiated and Conducted Emissions, Group 1, Class A, in

viii TBS1000 Series Oscilloscopes User Manual

Compliance Information

Safety Compli

ance

EC Declaration of

Conformity – Low Voltage

U.S. Natio

nally Recognized

Testing Laboratory Listing

Canadian Certiﬁcation

Additional Compliances

Equipment Type

Compliance was demonstrated to the following speciﬁcation as listed in the Ofﬁcial Journal of the European Communities:

Low Voltage Directive 2006/95/EC.

EN 61010-1: 2001. Safety requirements for electrical equipment for measurement control and laboratory use.

UL 61010-1:2004, 2ndEdition. Standard for electrical measuring and test equipment.

CAN/CSA-C22.2 No. 61010-1:2004. Safety requirements for electrical equipment for measurement, control, and laboratory use. Part 1.

IEC 61010-1: 2001. Safety requirements for electrical equipment for measurement, control, and laboratory use.

nd measuring equipment.

Test a

Safety Class

Pollution Degree

Description

Class1–groundedproduct.

A measure of the contaminants that could occur in the environment around and within a product. Typically the internal environment inside a product is considered to be the same as the external. Products should be used only in the environment for which they are rated.

Pollution Degree 1. No pollution or only dry, nonconductive pollution occurs. Products in this category are generally encapsulated, hermetically sealed, or

cated in clean rooms.

Pollution Degree 2. Normally only dry, nonconductive pollution occurs.

ccasionally a temporary conductivity that is caused by condensation must

O be expected. This location is a typical ofﬁce/home environment. Temporary condensation occurs only when the product is out of service.

Pollution Degree 3. Conductive pollution, or dry, nonconductive pollution that becomes conductive due to condensation. These are sheltered locations where neither temperature nor humidity is controlled. The area is protected from direct sunshine, rain, or direct wind.

Pollution Degree 4. Pollution that generates persistent conductivity through conductive dust, rain, or snow. Typical outdoor locations.

TBS1000 Series Oscilloscopes User Manual ix

Compliance Information

Installation (Overvoltage)

Category Descriptions

Overvoltage Category

Terminals on th designations. The installation categories are:

Measurement C low-voltage installation.

Measuremen installation.

Measuremen connected to the low-voltage installation.

Measureme directly connected to MAINS.

Overvoltage Category II (as deﬁned in IEC 61010-1).

is product may have different installation (overvoltage) category

ategory IV. For measurements performed at the source of

t Category III. For measurements performed in the building

t Category II. For measurements performed on circuits directly

nt Category I. For measurements p erformed on circuits not

x TBS1000 Series Oscilloscopes User Manual

Compliance Information

Environmenta

l Considerations

Product End-of-Life

Handling

Restriction of Hazardous

Substances

This section provides information about the environmental impact of the product.

Observe the following guidelines when recycling an instrument or component:

Equipment Recycling. Production of this equipment required the extraction and use of natural resources. The equipment may contain substances that could be harmful to end of life. In order to avoid release of such substances into the environment and to reduce the use of natural resources, we encourage you to recycle this product in an appropriate system that will ensure that most of the materials are reused or recycled appropriately.

This product is classiﬁed as an industrial monitoring and control instrument, and is not required to comply with the substance restrictions of the recast RoHS Directive 2011/65/EU until July 22, 2017.

the environment or human health if improperly handled at the product’s

This sym Union requirements according to Directives 2002/96/EC and 2006/66/EC on waste electrical and electronic equipment (WEEE) and batteries. For informa Tektronix Web site (www.tektronix.com).

bol indicates that this product complies with the applicable European

tion about recycling options, check the Support/Service section of the

TBS1000 Series Oscilloscopes User Manual xi

Compliance Information

xii TBS1000 Series Oscilloscopes User Manual

Preface

Help System

Context-Sensitive Help

This manual c Storage Oscilloscopes.

The oscilloscope has a Help system with topics that cover all the features of the oscilloscope. You can use the Help system to display several kinds of information:

General information about understanding and using the oscilloscope, such as Using the Menu System.

Information about speciﬁc menus and controls, such as the Vertical Position Control.

Advice about problems you may face while using an oscilloscope, such as Reducing Noise.

The Help system provides several ways to ﬁnd the information you need: context-sensitive help, hyperlinks, and an index.

The os screen when you push the Help front-panel button. When viewing help topics, an LED lights next to the multipurpose knob to indicate that the knob is active. If the topic uses more than one page, turn the multipurpose knob to move from page to page within the topic.

cilloscope displays information about the last menu displayed on the

ontains operating information for the TBS1000 Series Digital

Hyperlinks

Index

TBS1000 Series Oscilloscopes User Manual xiii

Most of the help topics contain phrases marked with angle brackets, such as <Autoset>. These are links to other topics. Turn the multipurpose knob to move the highlight from one link to another. Push the Show Topic option button to display the topic corresponding to the highlighted link. Push the Back option

utton to return to the previous topic.

Push the front-panel Help button, then push the Index option button. Push the Page Up or Page Down option buttons until you ﬁnd the index page that contains the topic you want to view. Turn the multipurpose knob to highlight a help topic. Push the Show Topic option button to display the topic.

NOTE. Push the Exit option button or any menu button to remove the Help text

from the screen and return to displaying waveforms.

Preface

Firmware Updates Through the Internet

If a newer version of ﬁrmware becomes available, you can use the Internet and aUSBﬂash drive to update your oscilloscope. If you do not have access to the Internet, contact Tektronix for information on update procedures.

To update the ﬁrmware from the Internet, follow these steps:

1. Push the Utility ► System Status option, and write down the ﬁrmware version number of the oscilloscope.

2. From your computer, access the www.tektronix.com web site and check if a newer version of oscilloscope ﬁrmware is available.

3. Ifthereisanewerversionofﬁrmware, download the ﬁrmware ﬁle from the web page.

You may need to unzip the downloaded ﬁle.

4. Copy the ﬁrmware ﬁle to the root folder of a USB ﬂash drive.

5. Insert

6. From y

It ta

Your oscilloscope will prompt you to press a button when the ﬁrmware update is com until the ﬁrmware update is complete.

the USB ﬂash drive into the USB Flash Drive port on the front of the

oscilloscope.

our oscilloscope, push the Utility ► File Utilities ► -more-page2

of 2 ► Update Firmware option button.

kes several minutes to update the ﬁ rmware.

plete. You must not remove the USB ﬂash drive, or power off the oscilloscope

xiv TBS1000 Series Oscilloscopes User Manual

Conventions

Preface

This manual uses the following conventions:

Menu options appear with the ﬁrst letter of each word in upper case. For example: Peak Detect, Window Zone.

Front-pane

Multipurpose knob

buttons — First letter of each word on screen is upper case

Option

l buttons and knob labels — First

letter of each word in upper case

NOTE. Option buttons may also be called screen buttons, side-menu buttons,

bezel buttons, or soft keys.

The ► delimiter separates a series of button pushes. For example, Utility ► Options ► Set Date and Time means that you push the Utility front-panel

button, then push the Options option button, and then push the Set Date and

e option button. Multiple pushes of an option button may be required

Tim to select the desired option.

TBS1000 Series Oscilloscopes User Manual xv

Preface

xvi TBS1000 Series Oscilloscopes User Manual

Getting Started

TBS1000 Series Digital Storage Oscilloscopes are small, lightweight, benchtop instruments, which you can use to take ground-referenced measurements.

This chapter describes how to do the following tasks:

Install your product

Perform a brief functional check

General Features

Perform a p

robe check and compensate probes

Match your probe attenuation factor

Use the self calibration routine

NOTE. You can select a language to display on the screen when you power on the

oscilloscope. At any time, you can also access the Utility ► Language option to select a language.

The next table and list describe the general features.

Model Channels Bandwidth Sample rate Display

TBS1022

TBS1042

TBS1062

TBS1102

TBS1152

225MHz

240MHz

260MHz

2 100 MHz

2 150 MHz

500 MS/s Color

1 GS/s Color

Context-sensitive help system

Color LCD display

Selectable 20 MHz bandwidth limit

2500 point record length for each channel

Autoset

Autoranging

Probe Check Wizard

Setup and waveform storage

USB Flash Drive port for ﬁle storage

Direct printing to any PictBridge compatible printer

TBS1000 Series Oscilloscopes User Manual 1

Getting Started

PC communicati

ons through the USB Device port with OpenChoice PC

Communications software

Connect to a GP

IB controller through an optional TEK-USB-488 adapter

Cursors with readouts

Trigger frequency readout

Sixteen automatic measurements

Waveform averaging and peak detection

Dual time base

Math func

tions: +, -, and × operations

Math Fast Fourier Transform (FFT)

Pulse Width trigger capability

Video trigger capability with line-selectable triggering

External trigger

Variable persistence display

nterface and help topics in ten languages

User i

Installation

Power Source

Security Loop

Power Cord

nly the power c ord provided with your oscilloscope. Appendix B:

Use o Accessories lists the standard and the optional accessories.

Use a power source that delivers 90 to 264 VAC

0 Hz power source, it must deliver 90 to 132 VAC

,45to66Hz. Ifyouhavea

RMS

, 360 to 440 Hz.

RMS

Use a standard laptop computer security lock, or thread a security cable through the built-in cable channel to secure your oscilloscope to your location.

2 TBS1000 Series Oscilloscopes User Manual

Getting Started

Ventilation

Security c able channel Security lock hole

Power cord

NOTE. The oscilloscope cools by convection. Keep two inches clear on the sides

and top of the product to allow adequate air ﬂow.

TBS1000 Series Oscilloscopes User Manual 3

Getting Started

Functional Ch

eck

Perform this functional check to verify that your oscilloscope is operating correctly.

ON/OFF button

1. Power on the oscilloscope.

Push the Default Setup button.

The default 10X.

Default Setup button

PROBE COMP

2. Connect the TPP0101/TP0201 probe to channel 1ontheo in the probe connector with the key on the CH 1 BNC, push to connect, and twist to the right to lock th

Connect the probe tip and reference lead to the PROBE COMP terminals.

Probe option attenuation setting is

scilloscope. To do this, align the slot

e probe in place.

3. Push t

he AutoSet button. Within a few seconds, you should see a square wave in the display of about 5V peak-to-peak at 1 kHz.

he 1 channel 1 menu button on the front

Push t panel twice to remove channel 1, push the 2 channel 2 menu button to display channel 2, and

at steps 2 and 3. For 4-channel models,

repe repeat for 3 and 4.

4 TBS1000 Series Oscilloscopes User Manual

Probe Safety

Getting Started

Check and observe probe ratings before using probes.

A guard around the TPP0101/TPP0201 probe body provides a ﬁnger b arrier for protection from electric shock.

Finger guard

WARNING. To avoid electric shock when using the probe, keep ﬁngers behind

the guard on the probe body.

To avoid electric shock while using the probe, do not touch metallic portions of the probe head while it is connected to a voltage source.

Volta

Connect the probe to the oscilloscope, and connect the ground terminal to ground before you take any measurements.

ge Probe Check Wizard

You can use the Probe Check Wizard to verify that a voltage probe is operating properly. The wizard does not s upport current probes.

The wizard helps you adjust the compensation for voltage probes (usually with a screw on the probe body or probe connector) and set the factor for the Attenuation

ion for each channel, such as in the 1 ► Probe ► Voltage ► Attenuation

opt option.

TBS1000 Series Oscilloscopes User Manual 5

Getting Started

You should use t an input channel.

T o use the Prob probe is connected properly, compensated properly, and the Attenuation option in the oscilloscope Vertical menu is set to match the probe, the oscilloscope displays a PASSED message at the bottom of the screen. Otherwise, the oscilloscope displays directions on the screen to guide you in correcting these problems.

NOTE. The Probe Check Wizard is useful for 1X, 10X, 20X, 50X, and 100X

probes. It the Ext Trig BNC.

NOTE. Wh

oscilloscope settings (other than the Probe option) to what they were before you pushed the PROBE CHECK button.

To comp steps:

1. Conne

ensate a probe that you plan to use with the Ext Trig input, follow these

he Probe Check Wizard each time you connect a voltage probe to

e Check Wizard, push the PROBE CHECK button. If the voltage

is not useful for 500X or 1000X probes, or for probes connected to

en the process is complete, the Probe C heck Wizard restores the

ct the probe to any input channel BNC, such as to c hannel 1.

2. Push the PROBE CHECK button and follow the directions on the screen.

3. After you verify that the probe functions and is compensated properly, connect

the probe to the Ext Trig BNC.

6 TBS1000 Series Oscilloscopes User Manual

Getting Started

Manual Probe C

ompensation

As an alternative method to the Probe Check Wizard, you can manually perform this adjustment to match your probe to the input channel.

PROBE COMP AutoSet

button

1. Push the 1 ► Probe ► Voltage ► Attenuation option and select 10X. Connect

the TPP0101/TPP0201 probe to channel 1 on the oscilloscope. If you use the probe hook-tip, ensure a proper connection by ﬁrmly inserting the tip onto the probe.

2. AttachtheprobetiptothePROBECOMP ~5V@1kHz terminal and the reference lead to the PROBE COMP chassis terminal. Display the channel, and then push the AutoSet button.

3. Check the shape of the displayed waveform.

Overcompensated

Undercompensated

e Attenuation Setting

Prob

Compensated correctly

4. If necessary, adjust your probe.

Repeat as necessary.

Probes are available with various attenuation factors which affect the vertical scale of the signal. The Probe Check Wizard veriﬁes that the attenuation factor

the oscilloscope matches the probe.

As an alternative method to Probe Check, you can manually select the factor

at matches the attenuation of your probe. For example, to match a probe set

th to10XconnectedtoCH1,pushthe1 ► Probe ► Vol t ag e ► Attenuation option, and select 10X.

NOTE. The default setting for the Attenuation option is 10X.

TBS1000 Series Oscilloscopes User Manual 7

Getting Started

Current P

robe Scaling

If you change th the oscilloscope Attenuation option to match. Switch settings are 1X and 10X.

NOTE. When the Attenuation switch is set to 1X, the P2220 probe limits the

bandwidth of the oscilloscope to 6 MHz. To use the full bandwidth of the oscilloscope, be sure to set the switch to 10X.

Current probes provide a voltage signal proportional to the current. You need to set the oscilloscope to match the scale of your current probe. The default scale is 10 A/V.

For example, to set the scale for a current probe connected to CH 1, push the 1 ►

Probe ►

e Attenuation switch on a P2220 probe, you also need to change

Attenuation switch

Current ► Scale option, and select an appropriate value.

Self Calibration

elf calibration routine lets you optimize the oscilloscope signal path for

The s maximum measurement accuracy. You can run the routine at any time but you should always run the routine if the ambient temperature changes by 5 °C (9 °F) or more. The routine takes about two minutes.

For accurate calibration, power on the oscilloscope and wait twenty minutes to ensure it is warmed up.

To compensate the signal path, disconnect any probes or cables from the input connectors. Then, access the Utility ► Do Self Cal option, and follow the directions on the screen.

8 TBS1000 Series Oscilloscopes User Manual

Operating Basics

The front panel is divided into easy-to-use functional areas. This chapter provides you with a quick overview of the controls and the information displayed on the screen.

Display Area

In addition to displaying waveforms, the display is ﬁlled with many details about the waveform and the oscilloscope control settings.

NOTE. For details on displaying the FFT function, (See page 57, Displaying

the FFT Spectrum.)

TBS1000 Series Oscilloscopes User Manual 9

Operating Basics

1. Icon display shows acquisition mode.

Sample m

Peak detect mode

Averag

ode

e mode

10 TBS1000 Series Oscilloscopes User Manual

Operating Basics

2. Trigger status

indicates the following:

The oscilloscope is acquiring pretrigger data. All triggers are ignored in this state.

All pretrigger data has been acquired and the oscilloscope is ready to accept a trigger.

The oscilloscope has seen a trigger and is acquiring the posttrigger data.

The oscilloscope has stopped acquiring waveform data.

The oscilloscope has completed a Single Sequence acquisition.

The oscilloscope is in auto mode and is acquiring waveforms in the absence of triggers.

The oscilloscope is acquiring and displaying waveform data continuo

usly in scan mode.

3. Marker shows horizontal trigger position. Turn the Horizontal Position knob to adjust the position of the marker.

4. Readout shows the time at the center graticule. The trigger time is zero.

5. Marker

shows Edge or Pulse Width trigger level.

6. On-screen markers show the ground reference points of the displayed

orms. If there is no marker, the channel is not displayed.

wavef

7. An arrow icon indicates that the waveform is inverted.

8. Readouts show the vertical scale factors of the channels.

9. AB

icon indicates that the channel is bandwidth limited.

10. Readout shows main time base setting.

11. Readout shows window time base setting if it is in use.

12.Re

adout shows trigger source used for triggering.

13. Icon shows selected trigger type as follows:

Edge trigger for the rising edge.

Edge trigger for the falling edge.

Video trigger for line sync.

ideo trigger for ﬁeld sync.

Pulse Width trigger, positive polarity.

Pulse Width trigger, negative polarity.

TBS1000 Series Oscilloscopes User Manual 11

Operating Basics

Message Area

14. Readout shows E

15. Display area shows helpful messages; some messages display for only three

seconds.

If you recall a saved waveform, readout shows information about the reference waveform, such as RefA 1.00V 500µs.

16. Readout shows date and time.

17. Readout shows trigger frequency.

The oscilloscope displays a message area (item number 15 in the previous ﬁgure) at the bottom of the screen that conveys the following types of helpful information:

Directions to access another menu, such as when you push the Trig Menu button:

For TRIGGER HOLDOFF, go to HORIZONTAL MENU

Suggestion of what you might want to do next, such as when you push the Measure button:

Push an option button to change its measurement

Information about the action the oscilloscope performed, such as when you push the Default Setup button:

dge or Pulse Width trigger level.

Using the Menu System

Default setup recalled

Information about the waveform, such as when you push the AutoSet button:

Square wave or pulse detected on CH1

The user interface of the oscilloscopes was designed for easy access to specialized functions through the menu structure.

When you push a front-panel button, the oscilloscope displays the corresponding menu on the right side of the screen. The menu shows the options that are available when you push the unlabeled option buttons directly to the right of the screen.

The oscilloscope uses several methods to display menu options:

Page (Submenu) Selection: For some menus, you can use the top option button to choose two or three submenus. Each time you push the top button, the options change. For example, when you push the top button in the Trigger Menu, the oscilloscope cycles through the Edge, Video, and Pulse Width trigger submenus.

Circular List: The oscilloscope sets the parameter to a different value each time you push the option button. For example, you can push the 1 (channel

12 TBS1000 Series Oscilloscopes User Manual

Operating Basics

lection

Page Se

TRIGGER CH1

Type

Edge

or or

TRIGGER CH1

Type

Video

or or

TRIGGER CH1

Type

Pulse

Circul

ar List

Coupling

Ground

1menu)buttona

nd then push the top option button to cycle through the

Vertical (channel) Coupling options.

In some lists,

you can use the multipurpose knob to select an option. A hint line tells you when the multipurpose knob can be used, and an LED by the multipurpose knob lights when the knob is active. (See page 15, Menu and Control Buttons.)

Action: The oscilloscope displays the type of action that will immediately occurwhenyoupushanActionoptionbutton. For example, when the Help Index is visible, and you push the Page Down option button, the oscilloscope immediately displays the next page of index e ntries.

Radio: The oscilloscope uses a different button for each option. The currently-selected option is highlighted. For example, the oscilloscope display

s various acquisition mode options when you push the Acquire Menu

button. To select an option, push the corresponding button.

Action Radio

HELP

Page

Down

ACQUIRE

Sample

Peak Detect

Average

Vertical Controls

TBS1000 Series Oscilloscopes User Manual 13

Operating Basics

Horizontal Controls

Position (1 and

1&2Menu. Displays the Vertical menu selections and toggles the display of the

channel waveform on and off.

Scale (1 & 2). Selects vertical scale factors.

Math. Displays waveform math operations menu and toggles the display of the

math waveform on and off.

2). Positions a waveform vertically.

ion. Adjusts the horizontal position of all channel and math waveforms.

Posit

The resolution of this control varies with the time base setting. (See page 86, Window Zone.)

NOTE. To make a large adjustment to the horizontal position, turn the Horizontal

Scale knob to a larger value, change the horizontal position, and then turn the Horizontal Scale knob back to the previous value.

Horiz. Displays the Horizontal Menu.

Set to Zero. Sets the h orizontal position to zero.

Scale. Selects the horizontal time/division (scale factor) for the main or the

window time base. When Window Zone is enabled, it changes the width of the window zone by changing the window time base. (See page 86, Window Zone.)

14 TBS1000 Series Oscilloscopes User Manual

Operating Basics

Trigger Contr

ols

Level. When you use an Edge or Pulse trigger, the Level knob sets the amplitude

level that the signal must cross to acquire a waveform.

Trig Menu

Set To 50%. The trigger level is set to the vertical midpoint between the peaks of

the trigger signal.

. Displays the Trigger Menu.

u and Control Buttons

Men

Force Trig. Completes an acquisition regardless of an adequate trigger signal.

utton has no effect if the acquisition is already stopped.

This b

Trig View. Displays the trigger waveform in place of the channel waveform while you hold down the Trig Vi e w button. Use this to see how the trigger settings affect the trigger signal, such as trigger coupling.

Multipurpose knob

TBS1000 Series Oscilloscopes User Manual 15

Operating Basics

Refer to the Ref

erence chapter for detailed information on the menu and button

controls.

Multipurpose Knob. Thefunctionisdeterminedbythedisplayedmenuorselected menu option. When active, the adjacent LED lights. The next table lists the functions.

Active menu or option Knob function Description

Cursor Cursor 1 or Cursor 2

Help

Horizontal

Math

Measure Type

Save/Recall

Trigger

Utility ► File Utilities

Utility ► Options ► GPIB Setup ► Address

Utility ► Options ► Set Date and Time

Scroll Selects entries in the Index; selects

Holdoff Sets the amount of time before another

Position

Vertical Scale Changes the scale of the Math

Action

File selection

Source Selects the source when the Trigger

Video line number

Pulse width

File selection

Name entry

Value entry

Positions the selected cursor

links in a topic; displays the next or previous page for a topic

trigger event can be accepted; (See page 100, Holdoff.)

Positions the Math waveform

waveform

Selects the type of automatic measurement for each source

Sets the transaction as save or recall for setup ﬁles, waveform ﬁles, and screen images

Selects setup, waveform, or image ﬁles to save, or selects setup or waveform ﬁles to recall

Type option is set to Edge

Sets the oscilloscope to a speciﬁcline number when the Trigger Type option is set to Video and the Sync option is set to Line Number

Sets the width of the puls e when the Trigger Type option is set to Pulse

Selects ﬁles to rename or delete; (See page 102, File Utilities for the USB Flash Drive.)

Renames the ﬁle or folder; (See page 103, Rename File or Folder.)

Sets the GPIB address for the TEK-USB-488 adapter

Sets the value for the date and time; (See page 101, Setting the Date and Time.)

16 TBS1000 Series Oscilloscopes User Manual

Operating Basics

Active menu or option Knob function Description

Vertical ► Pro Voltage ► Attenuation

Vertical ► Probe ► Current ► Sca

be ►

Value entry

For a channel menu (such as the CH 1 menu), sets the attenuation factor in the oscillosc

For a of chann CH 1 menu), sets the scale in the oscilloscope

ope

el menu (such as the

AutoRange. Displays the Autorange Menu, and activates or deactivates the autoranging function. When autoranging is active, the adjacent LED lights.

Save/Recall. Displays the Save/Recall Menu for setups and waveforms.

Measure. Displays the automated measurements menu.

Acquire. Displays the Acquire Menu.

Ref. Displays the Reference Menu to quickly display and hide reference

wavefo

rms stored in the oscilloscope non-volatile memory.

Utility. Displays the Utility Menu.

Cursor. Displays the Cursor Menu. Cursors remain visible (unless the Type

option is set to Off) after you leave the Cursor Menu but are not adjustable.

Display. Displays the Display Menu.

Help. Displays the Help Menu.

Default Setup. Recalls the factory setup.

AutoSet. Automatically sets the oscilloscope controls to produce a usable display

of the input signals.

Single. (Single sequence) Acquires a single waveform and then stops.

Run/Stop. Continuously acquires waveforms or stops the acquisition.

Starts the print operation to a PictBridge compatible printer, or performs the

Save function to the USB ﬂash drive.

Save. An LED indicates when the print button is conﬁguredtosavedatatothe USB ﬂash drive.

TBS1000 Series Oscilloscopes User Manual 17

Operating Basics

Input Connect

ors

Other Front-Panel Items

1&2. Input connectors for waveform display.

Ext Trig. Input connector for an external trigger source. Use the Trigger Menu to

select the how the trigger settings affect the trigger signal, such as trigger coupling.

Ext, or Ext/5 trigger source. Push and hold the Trig Vie w button to see

USB Flash Drive port

USB Flash Drive Port. Insert a USB ﬂash drive for data storage or retrieval. The oscilloscope displays a clock symbol to indicate when the ﬂash drive is active. After a ﬁle is saved or retrieved, the oscilloscope removes the clock, and displays a hint line to notify you that the save or recall operation is complete.

For ﬂash drives with an LED, the LED blinks when saving data to or retrieving data from the drive. Wait until the LED stops to remove the drive.

PROBE COMP. Probe compensation output and chassis reference. Use to electrically match a voltage probe to the oscilloscope input circuit. (See page 5, Voltage Probe Check Wizard.) (See page 7, Manual Probe Compensation.)

18 TBS1000 Series Oscilloscopes User Manual

Understanding Oscilloscope Functions

This chapter contains general information that you need to understand before you use an oscilloscope. To use your oscilloscope effectively, you need to learn about the fol

Setting up the oscilloscope

Triggering

Acquiring signals (waveforms)

Scaling and positioning waveforms

Measuring waveforms

lowing functions:

The next and their relationships to each other.

Setting Up the Oscilloscope

You should become familiar with several functions that you may use often when operating your oscilloscope: Autoset, Autorange, saving a setup, and recalling a setup.

ﬁgure shows a block diagram of the various functions of the oscilloscope

Using Autoset

Using Autorange

TBS1000 Series Oscilloscopes User Manual 19

Each time you push the AutoSet button, the Autoset function obtains a stable waveform display for you. It automatically adjusts the vertical scale, horizontal scale and trigger settings. Autoset also displays several automatic measurements in the graticule area, depending on the signal type.

Autorange is a continuous function that you can enable or disable. The function adjusts setup values to track a signal when the signal exhibits large changes or when you physically move the probe to a different point.

Understanding Oscilloscope Functions

Saving a Setup

Recalling a Setup

Triggering

Default Setup

The oscillosco change before you power off the oscilloscope. The oscilloscope recalls this setup the next time you apply power.

You can use the Save/Recall Menu to save up to ten different setups.

You can also aUSBﬂash drive for removable data storage and retrieval. (See page 63, USB Flash Drive Port.)

The oscill any saved setups, or the default setup. (See page 90, Save/Recall.)

The oscilloscope is set up for normal operation when it is shipped from the factory button. To view the default settings, refer to Appendix D: Default Setup.

The trigger determines when the oscilloscope starts to acquire data and to display a waveform. When a trigger is set up properly, the oscilloscope converts unstable displays or blank screens into meaningful waveforms.

. This is the default setup. To recall this setup, push the Default Setup

pe saves the current setup if you wait ﬁve seconds after the last

save setups to a USB ﬂash drive. The oscilloscope accommodates

oscope can recall the last setup before the oscilloscope was powered off,

Triggered waveform Untriggered waveforms

For oscilloscope-speciﬁc descriptions, refer to the Operating Basics chapter. (See page 15, Trigger Controls.) Refer also to the Reference chapter. (See page 95, Trigger Controls.)

When you push the Run/Stop or Single button to start an acquisition, the oscilloscope goes through the following steps:

1. Acquires enough data to ﬁll the portion of the waveform record to the left of the trigger point. This is called the pretrigger.

2. Continues to acquire data while waiting for the trigger condition to occur.

3. Detects the trigger condition.

20 TBS1000 Series Oscilloscopes User Manual

Understanding Oscilloscope Functions

Source

Types

Modes

4. Continues to ac

5. Displays the newly-acquired waveform.

NOTE. ForEdgeandPulsetriggers,theoscilloscope counts the rate at which

trigger events occur to determine trigger frequency. The oscilloscope displays the frequency in the lower right corner of the screen.

You can use the Trigger Source options to select the signal that the oscilloscope uses as a trigger. The source can be the AC power line (available only with Edge triggers), or any signal connected to a channel BNC or to the Ext Trig BNC.

The oscilloscope provides three types of triggers: Edge, Video, and Pulse Width.

You can select the Auto or the Normal trigger mode to deﬁne how the oscilloscope acquires data when it does not detect a trigger condition. (See page 95, Mode Options.)

To perform a single sequence acquisition, push the Single button.

quire data until the waveform record is full.

Coupling

Position

Slope and Level

You can use the Trigger Coupling option to determine which part of the signal will pass to the trigger circuit. This can help you attain a stable display of the waveform.

To use trigger coupling, push the Trig Menu button, select an Edge or Pulse trigger, and select a Coupling option.

NOTE. Trigger coupling affects only the signal passed to the trigger system. It

does not affect the bandwidth or coupling of the signal displayed on the screen.

To view the conditioned signal being passed to the trigger circuit, push and hold down the Trig View button.

The horizontal position control establishes the time between the trigger and the screen center. Refer to Horizontal Scale and Position; Pretrigger Information for information on how to use this control to position the trigger. (See page 23, Horizontal Scale and Position; Pretrigger Information.)

The Slope and Level controls help to deﬁne the trigger. The Slope option (Edge trigger type only) determines whether the oscilloscope ﬁnds the trigger point on the rising or the falling edge of a signal. The Trigger Level knob controls where on the edge the trigger point occurs.

TBS1000 Series Oscilloscopes User Manual 21

Understanding Oscilloscope Functions

Trigger level can be adjusted

Acquiring Signals

When you acquire a signal, the oscilloscope converts it into a digital form and displays a waveform. The acquisition mode deﬁnes how the signal is digitized, and the time base setting affects the time span and level of detail in the acquisition.

Rising edge Falling edge

vertically

Trigger can be rising or falling

Acquisition Modes

ime Base

There are three acquisition modes: Sample, Peak Detect, and Average.

Sample. In this acquisition mode, the oscilloscope samples the signal in evenly spaced intervals to construct the waveform. This mode accurately represents signals most of the time.

However, this mode does not acquire rapid variations in the signal that may occur between samples. This can result in alia sing, and may cause narrow pulses to be

d. In these cases, you should use the Peak Detect mode to acquire data.

misse (See page 23, Time Domain Aliasing.)

Peak Detect. In this acquisition mode, the oscilloscope ﬁnds the highest and lowest values of the input signal over each sample interval and uses these values to display the waveform. In this way, the oscilloscope can acquire and display

row pulses, which may have otherwise been missed in Sample mode. Noise

nar will appear to be higher in this mode.

Average. In this acquisition mode, the oscilloscope acquires several waveforms, averages them, and displays the resulting waveform. You can use this mode to reduce random noise.

The oscilloscope digitizes waveforms by acquiring the value of an input signal at discrete points. The time base allows you to control how often the values are digitized.

To adjust the time b ase to a horizontal scale that suits your purpose, use the Horizontal Scale knob.

22 TBS1000 Series Oscilloscopes User Manual

Understanding Oscilloscope Functions

Scaling and Po

sitioning Waveforms

Vertical Scale and Position

You can change the display of waveforms by adjusting the scale and position. When you change the scale, the waveform display will increase or decrease in size. When you chan

The channel indicator (located on the left of the graticule) identiﬁes each waveform on the display. The indicator points to the ground reference level of the waveform record.

You can view the display area and readouts. (See page 9, Display Area.)

You can change the vertical position of waveforms by moving them up or down in the display. To compare data, you can align a waveform above another or you can align waveforms on top of each other.

You can change the vertical scale of a wav contract or expand relative to the ground reference level.

For oscilloscope-speciﬁc descriptions, refer to the Operating Basics chapter. (See page 13, Vertical Controls.) ReferalsototheReference chapter. (See page 103, Vertical Controls.)

ge the position, the waveform will move up, down, right, or left.

eform. The waveform display will

Horizontal Scale and

Position; Pretrigger

Information

You can adjust the Horizontal Position control to view waveform data before the trigger, after the trigger, or some of each. When you change the horizontal position of a waveform, you are actually changing the time between the trigger and the center of the display. (This appears to move the waveform to the right or left on the display.)

Forexample,ifyouwanttoﬁnd the cause of a glitch in your test circuit, you might trigger on the glitch and make the pretrigger period large enough to capture data before the glitch. You c an then analyze the pretrigger data and perhaps ﬁnd the cause of the glitch.

You change the horizontal scale of all the waveforms by turning the Horizontal Scale knob. For example, you might want to see just one cycle of a waveform to measure the overshoot on its rising edge.

The oscilloscope shows the horizontal scale as time per division in the s cale readout. Since all active waveforms use the same time base, the oscilloscope only displays one value for all the active channels, except when you use Window Zone. Ref (See page 86, Window Zone.)

For oscilloscope-speciﬁc descriptions, refer to the Operating Basics chapter. (See page 14, Position.)ReferalsototheReference chapter. (See page 85, Horizontal.)

Time Domain Aliasing. Aliasing occurs when the oscilloscope does not sample the signal fast enough to construct an accurate waveform record. When this happens,

er to Window Zone for information on how to use the window function.

TBS1000 Series Oscilloscopes User Manual 23

Understanding Oscilloscope Functions

the oscillosco

pe displays a waveform with a frequency lower than the actual input

waveform, or triggers and displays an unstable waveform.

Actual high-frequ ency waveform

Apparent low-frequency

waveformduetoaliasing

Sample points

The oscilloscope accurately represents signals, but is limited by the probe bandwidth, the oscilloscope bandwidth, and the sample rate. To avoid aliasing, the oscilloscope must sample the signal more than twice as fast as the highest frequency component of the signal.

The highest frequency that the oscilloscope sampling rate can theoretically represent is the Nyquist frequency. The sample rate is called the Nyquist rate, and is twice the Nyquist frequency.

The oscilloscope maximum sample rates are at least ten times the bandwidth. These high sample rates help reduce the possibility of aliasing.

There are several ways to check for aliasing:

Turn the horizontal Scale knob to change the horizontal scale. If the shape of the waveform changes drastically, you may have aliasing.

Select the Peak Detect acquisition mode. (See page 22, Peak Detect.) This mode samples the highest and lowest values so that the oscilloscope can detect faster signals. If the shape of the waveform changes drastically, you may have aliasing.

If the trigger frequency is faster than the display information, you may have aliasing or a waveform that crosses the trigger level multiple times. Examining the waveform allows you to identify whether the shape of the signa

lisgoing

to allow a single trigger crossing per cycle at the selected trigger level.

If multiple triggers are likely to occur, select a trigger level that will generate only a single trigger per cycle. If the trigger frequency is still faster than the display indicates, you may have aliasing.

If the trigger frequency is slower, this test is not useful.

If the signal you are viewing is also the trigger source, use the graticule or the cursors to estimate the frequency of the displayed waveform. Compare this to the Trigger Frequency readout in the lower right corner of the screen. If they differ by a large amount, you may have aliasing.

The next table lists the time base settings that you can use to avoid aliasing at various frequencies and the respective sample rate. At the fastest horizontal scale setting, aliasing is not likely to occur due to the bandwidth limitations of the oscilloscope input ampliﬁers.

24 TBS1000 Series Oscilloscopes User Manual

Understanding Oscilloscope Functions

Settings to avo

id aliasing in Sample mode

Time base Samples per second Maximum

5.0 to 250.0 ns

500.0 ns

1.0 μs

2.5 μs

5.0 μs

10.0 μs

25.0 μs

50.0 μs

100.0 μs

250.0 μ

500.0 μ

1.0 ms

2.5 m

5.0 m

0ms

10.

0ms

25.

.0 ms

0.0 ms

50.0 ms

00.0 ms

1.0 s

2.5 s

5.0 s

10.0 s

25.0 s

50.0 s

†

Bandwidthreducedto6MHzwithaP2220probesetto1X.

1GS/s

500.0 MS/s

250.0 MS/s

100.0 MS/s

50.0 MS/s

25.0 MS/s

10.0 MS/s

5.0 MS/s

2.5 MS/s

1.0 MS/s

500.0 kS/s

250.0 kS/s

100.0 kS/s

50.0 kS/s

25.0 kS/s

10.0 kS/s

5.0 kS/s

2.5 kS/s

1.0 kS/s

500.0 S/s

250.0 S/s

100.0 S/s

50.0 S/s

25.0 S/s

10.0 S/s

5.0 S/s

150.0 MHz

125.0 MHz

50.0 MHz

25.0 MHz

12.5 MHz

5.0 MHz

2.5 MHz

1.25 MHz

500.0 k

250.0 k

kHz

125.0

kHz

50.0

kHz

25.0

5kHz

12.

kHz

5.0

5kHz

25 kHz

00.0 Hz

50.0 Hz

125.0 Hz

50.0 Hz

25.0 Hz

12.5 Hz

5.0 Hz

2.5 Hz

†

Taking Measurements

The oscilloscope displays graphs of voltage versus time and can help you to measure the displayed waveform.

There are several ways to take measurements. You can use the graticule, the cursors, or an automated measurement.

Graticule

TBS1000 Series Oscilloscopes User Manual 25

This method allows you to make a quick, visual estimate. For example, you might look at a waveform amplitude and determine that it is a little more than 100 mV.

Understanding Oscilloscope Functions

Cursors

You c an ta ke si m

ple measurements by counting the major and minor graticule

divisions involved and multiplying by the scale factor.

Forexample,ifyoucountedﬁve major vertical graticule divisions between the minimum and maximum values of a waveform and knew you had a scale factor of 100 mV/division, then you could calculate your peak-to-peak voltage as follows:

5 divisions x 100 mV/division = 500 mV

Cursor

This method allows you to take measurements by moving the cursors, which always appear in pairs, and reading their numeric values from the display readouts. There are two types of cursors: Amplitude and Time.

Automatic

When you use cursors, be sure to set the Source to the waveform on the display that you want to measure.

To use cursors, push the Cursor button.

Amplitude Cursors. Amplitude cursors appear as horizontal lines on the display and measure the vertical parameters. Amplitudes are referenced to the reference level. For the Math FFT function, these cursors measure magnitude.

Time Cursors. Time cursors appear as vertical lines on the display and measure both horizontal and vertical parameters. Times are referenced to the trigger point. For the Math FFT function, these cursors measure frequency.

Time cursors also include a readout of the waveform amplitude at the point the waveform crosses the cursor.

The Measure Menu can take up to ﬁve automatic measurements. When you take automatic measurements, the oscilloscope does all the calculating for you. Because the measurements use the waveform record points, they are more accurate than the graticule or cursor measurements.

Automatic measurements use readouts to show measurement results. These readouts are updated periodically as the oscilloscope acquires new data.

26 TBS1000 Series Oscilloscopes User Manual

Understanding Oscilloscope Functions

For measuremen Taking Measurements.)

t descriptions, refer to the Reference chapter. (See page 88,

TBS1000 Series Oscilloscopes User Manual 27

Understanding Oscilloscope Functions

28 TBS1000 Series Oscilloscopes User Manual

Application Examples

This section presents a series of application examples. These simpliﬁed examples highlight the features of the oscilloscope and give you ideas for using it to solve your own test problems.

Taking simple measurements

Using Autoset

Using the Measure Menu to take automatic measurements

Measuring

Using Autorange to examine a series of test points

Taking cursor measurements

Measuring ring frequency and ring amplitude

Measuring pulse width

Measuring rise time

Analyz

Looking at a noisy signal

Using the average function to separate a signal from noise

Capturing a single-shot signal

Optimizing the acquisition

Measuring propagation delay

ggering on a pulse width

Tri

Triggering on a video signal

Triggering on video ﬁelds and video lines

two signals and calculating gain

ing signal detail

Using the window function to see waveform details

Analyzing a differential communication signal using Math functions

Viewing impedance changes in a network using XY mode and persistence

Data logging

Limit testing

TBS1000 Series Oscilloscopes User Manual 29

Application Examples

Taking Simple

Using Autoset

Measurements

You need to see a signal in a circuit, but you do not know the amplitude or frequency of the signal. You want to quickly display the signal and measure the frequency, p

To quickly display a signal, follow these steps:

1. Push the 1 (channel 1 menu) button.

eriod, and peak-to-peak amplitude.

2. Push Probe ► Vol t ag e ►Attenuation ► 10X.

3. If using P2220 probes, set their switches to 10X.

4. Conn

5. Push

The oscilloscope sets the vertical, horizontal, and trigger controls automatically. If y these controls.

NOTE. The oscilloscope displays relevant automatic measurements in the

waveform area of the screen based on the signal type that is detected.

For oscilloscope-speciﬁc descriptions, refer to the Reference chapter. (See page 79, Autoset.)

ect the channel 1 probe tip to the s ignal. Connect the reference lead to

the circuit reference point.

the AutoSet button.

ou want to optimize the display of the waveform, you can manually adjust

30 TBS1000 Series Oscilloscopes User Manual

Application Examples

Taking Automatic

Measurements

The oscillosco

NOTE. If a question mark (?) appears in the Value readout, the signal is outside

the measurement range. Adjust the Vertical Scale knob (volts/division) of the appropriate channel to decrease the sensitivity or change the horizontal Scale setting (seconds/division).

To measure signal frequency, period, and peak-to-peak amplitude, rise time, and positive w

1. Push the Measure button to see the Measure Menu.

2. Push the top option button; the Measure 1 Menu appears.

3. Push Ty pe ► Freq.

The Val ue readout displays the m easurement and updates.

4. Push the Back option button.

5. Push th

6. Push Ty pe ► Period.

The Val ue readout displays the m easurement and updates.

pe can take automatic measurements of most displayed signals.

idth, follow these steps:

e second option button from the top; the Measure 2 Menu appears.

7. Push the Back option button.

8. Push the middle option button; the Measure 3 Menu appears.

9. Push Ty pe ► Pk-Pk.

Val u e readout displays the measurement and updates.

The

10. Push the Back option button.

11. Push the second option button from the bottom; the Measure 4 Menu appears.

12. Push Type ► Rise Time.

The Val ue readout displays the m easurement and updates.

13. Push the Back option button.

14. Push the bottom option button; the Measure 5 Menu appears.

15. Push Type ► Pos Width.

The Val ue readout displays the m easurement and updates.

16. Push the Back option button.

TBS1000 Series Oscilloscopes User Manual 31

Application Examples

CH1 Freq

1.000kHz

CH1

Period

1.000ms

CH1

Pk-Pk

5.04V

CH1

Rise Time

2.611µs?

CH1

Pos Width

500.0µs

32 TBS1000 Series Oscilloscopes User Manual

Application Examples

Measuring Two Signals

If you are testi

ng a piece of equipment and need to measure the gain of the audio ampliﬁer, you will need an audio generator that can inject a test signal at the ampliﬁer input. Connect two oscilloscope channels to the ampliﬁer input and output as shown next. Measure both signal levels and use the measurements to calculate the gain.

CH1

Pk-Pk

2.04V

CH2

Pk-Pk

206mV

CH1

None

CH1

None

CH1

None

To activate and display the signals connected to channel 1 and to channel 2, and select measurements for the two channels, follow these steps:

1. Push the AutoSet button.

2. Push the Measure button to see the Measure Menu.

3. Push the top option button; the Measure 1 Menu appear

4. Push Source ► CH1.

5. Push Ty pe ► Pk-Pk.

6. Push the Back option button.

TBS1000 Series Oscilloscopes User Manual 33

Application Examples

7. Push the second

option button from the top; the Measure 2 Menu appears.

8. Push Source ► CH2.

9. Push Ty p e ► Pk-Pk.

10. Push the Back option button.

Read the displayed peak-to-peak amplitudes for both channels.

11. To calculate the ampliﬁer voltage gain, use these equations:

VoltageGa

VoltageGain (dB) = 20 × log

in = output amplitude/input amplitude

(VoltageGain)

34 TBS1000 Series Oscilloscopes User Manual

Application Examples

Using Autoran

ge to Examine a Series of Test Points

If you have a machine that is malfunctioning, you may need to ﬁnd the frequency and RMS voltage of several test points, and compare these values to ideal va l ues. You ar e n ot ab when probing test points that are difﬁcult to physically reach.

1. Push the 1 (c

2. Push Probe ► Vo lta g e ► Attenuation and set to match the attenuation

of the prob

3. Push the AutoRange button to activate autoranging, and select the Ver tic a l

and Horiz

4. Push the Measure button to see the Measure Menu.

5. Push the top option button; the Measure 1 Menu appears.

6. Push Source ► CH1.

7. Push Ty p e ► Frequency.

8. Push the Back option button.

9. Push t

le to access front-panel controls since you need to use both hands

hannel 1 menu) button.

e attached to channel 1.

ontal option.

he second option button from the top; the Measure 2 Menu appears.

10. Push Source ► CH1.

11. Push Type ► Cyc RMS.

12. Push the Back option button.

13. Attach the probe tip and reference lead to the ﬁrst test point. Read the

frequency and cycle RMS measurements from the oscilloscope display and compare these to the ideal values.

14. Repeat step 13 for each test point, until you ﬁnd the m alfunctioning

component.

NOTE. When Autorange is active, each time you move the probe to another test

point, the oscilloscope readjusts the horizontal scale, the vertical scale, and the trigger level, to give you a useful display.

TBS1000 Series Oscilloscopes User Manual 35

Application Examples

Taking Cursor

Measuring Ri

ng Frequency

and Amplitude

Measurements

You can use the cursors to quickly take time and amplitude measurements on a w aveform.

To measure the ring frequency at the rising edge of a signal, follow these steps:

1. Push the Cursor button to see the Cursor Menu.

2. Push Ty pe ► Time.

3. Push Sourc

4. Push the Cursor 1 option button.

5. Turn the multipurpose knob to place a cursor on the ﬁrst peak of the ring.

6. Push the Cursor 2 option button.

7. Turn the multipurpose knob to place a cursor on the second peak of the ring.

You can see the Δ (delta) time and frequency (the measured ring frequency) in the Cursor Menu.

e ► CH1.

Type

Time

Source

CH1

Δt 540.0ns

1/Δt 1.852MHz

ΔV0.44V

Cursor1

180ns

1.40V

Cursor2

720ns

0.96V

8. Push Ty p e ► Amplitude.

9. Push the Cursor 1 option button.

urn the multipurpose knob to place a cursor on the ﬁrst peak of the ring.

10.T

11. Push the Cursor 2 option button.

12. Turn the multipurpose knob to place Cursor 2 on the lowest part of the ring.

You can see the amplitude of the ring in the Cursor Menu.

36 TBS1000 Series Oscilloscopes User Manual

Type

Amplitude

Source

CH1

ΔV 640mV

Cursor 1

1.46V

Cursor 2

820mV

Application Examples

Measuring Pulse Width

If you are analyzing a pulse waveform and you want to know the width of the pulse, follow these steps:

1. Push the Cursor button to see the Cursor Menu.

2. Push Ty pe ► Time.

3. Push Sou

rce ► CH1.

4. Push the Cursor 1 option button.

5. Turn the multipurpose knob to place a cursor on the rising edge of the pulse.

6. Push the Cursor 2 option button.

7. Turn the multipurpose knob to place a cursor on the falling edge of the pulse.

You can see the following measurements in the Cursor Menu:

ime at Cursor 1, relative to the trigger.

The t

The time at Cursor 2, relative to the trigger.

The Δ (delta) time, which is the pulse width measurement.

TBS1000 Series Oscilloscopes User Manual 37

Application Examples

Type

Time

Source

CH1

Δt 500.0µs

1/Δt 2.000kHz

ΔV1.38V

Cursor 1

0.00s

0.98V

Cursor 2

500µs

-1.00V

Measuring Rise Time

NOTE. The P

ositive Width measurement is available as an automatic measurement

in the Measure Menu. (See page 88, Taking Measurements.)

NOTE. The

Positive Width measurement also displays when you select the Single-Cycle Square option in the AutoSet Menu. (See page 81, Square Wave or Pulse.)

After m

easuring the pulse width, you decide that you need to check the rise time of the pulse. Typically, you measure rise time between the 10% and 90% levels of the waveform. To measure the rise time, follow these steps:

1. Turn the Horizontal Scale (seconds/division) knob to display the rising edge

of the waveform.

2. Turn the Ve r tic al S cal e (volts/division) and Vertical Position knobs to set

the waveform amplitude to about ﬁve divisions.

3. Push the 1 (channel 1 menu) button.

4. Pus

h Vo lts /D iv ► Fine.

5. Turn the Ver tic a l S c ale (volts/division) knob to set the waveform amplitude

exactly ﬁve divisions.

6. Turn the Vertical Position knob to center the waveform; position the baseline

f the waveform 2.5 divisions below the center graticule.

7. Push the Cursor button to see the Cursor Menu.

8. Push Ty pe ► Time.

9. Push Source ► CH1.

10. Push the Cursor 1 option button.

38 TBS1000 Series Oscilloscopes User Manual

Application Examples

11. Turn the multip

urpose knob to place a cursor at the point where the waveform crosses the se cond graticule line below center screen. This is the 10% level of the waveform.

12. Push the Cursor 2 option button.

13. Turn the mul

tipurpose knob to place a cursor at the point where the waveform crosses the second graticule line above center screen. This is the 90% level of the waveform.

The Δt readout in the Cursor Menu is the rise time of the waveform.

5 divisions

Type

Time

Source

CH1

Δt 140.0ns

1/Δt 7.143MHz

ΔV 2.08V

Cursor 1

-80.0ns

-1.02V

Cursor 2

60.0ns

1.06V

NOTE. The Rise Time measurement is available as an automatic measurement in

the Measure Menu. (See page 88, Taking M easurements.)

NOTE. The Rise Time measurement also displays when you select the Rising Edge

option in the AutoSet Menu. (See page 81, Square Wave or Pulse.)

TBS1000 Series Oscilloscopes User Manual 39

Application Examples

Analyzing Sig

nal Detail

Looking at a Noisy S ignal

You have a noisy signal displayed on the oscilloscope and you need to know more about it. You suspect that the signal contains much more detail than you can now see in the

The signal appears noisy and you suspect that noise is causing problems in y our circuit. To better analyze the noise, follow these steps:

1. Push the Acquire button to see the Acquire Menu.

2. Push the Peak Detect option button.

display.

Separating the Signal f rom

Noise

Peak detect emphasizes noise spikes and glitches in your signal, especially when the time base is set to a slow setting.

Now you want to analyze the signal shape and ignore the noise. To reduce random noise in the oscilloscope display, follow these steps:

1. Push the Acquire button to see the Acquire Menu.

2. Push the Average option button.

3. Push the Averages option button to see the effects of varying the number of

running averages on the waveform display.

40 TBS1000 Series Oscilloscopes User Manual

Application Examples

Avera ging redu the example below, a ring shows on the rising and falling edges of the signal when the noise is removed.

Capturing a Single-Shot Signal

The reli to investigate the problem. You suspect that the relay contacts arc when the relay opens. The fastest that you can open and close the relay is about once per minute, so you need to capture the voltage across the relay as a single-shot acquisition.

ability of a reed relay in a piece of equipment has been poor and you need

ces random noise and makes it easier to see detail in a signal. In

To set up for a single-shot acquisition, follow these steps:

1. Turn the Vertical Scale (volts/division) and Horizontal Scale (seconds/division) knobs to the appropriate ranges for the signal you expect to see.

2. Push the Acquire button to see the Acquire Menu.

3. Push the Peak De tect option button.

4. Pus

5. Push Slope ► Rising.

6. Turn the Level knob to adjust the trigger level to a voltage midway between

7. Push the Single button to start the acquisition.

When the relay opens, the oscilloscope triggers and captures the event.

htheTrig Menu button to see the Trigger Menu.

the open and closed voltages of the relay.

TBS1000 Series Oscilloscopes User Manual 41

Application Examples

Optimizing the Acquisition

The initial acquisition shows the relay contact beginning to open at the trigger point. Thi inductance in the c ircuit. The inductance can cause contac t arcing and premature relay failure.

You can use the vertical, horizontal, and trigger controls to optimize the settings before the next single-shot event is captured. When the next acquisition is captured with the new settings (push the Single button again), you can see that the contact bounces several times as it opens.

s is followed by a large spike that indicates contact bounce and

42 TBS1000 Series Oscilloscopes User Manual

Measuring Propagation Delay

You suspect that the memory timing in a microprocessor circuit is marginal. Set up the oscilloscope to measure the propagation delay between the chip-select signal and the data output of the memory device.

Application Examples

Type

Time

Source

CH1

Δt 20.00ns

1/Δt50.00MHz

ΔV 0.28V

Cursor 1

50.0ns

-0.20V

Cursor 2

70.0ns

0.08V

To set up to measure propagation delay, follow these steps:

1. Push the AutoSet button to trigger a stable display.

2. Adjust the horizontal and vertical controls to optimize the display.

3. Push the Cursor button to see the Cursor Menu.

4. Push Ty pe ► Time.

5. Push Source ► CH1.

6. Push the Cursor 1 option button.

7. Turn the multipurpose knob to place a cursor on the active edge of the

chip-select signal.

TBS1000 Series Oscilloscopes User Manual 43

Application Examples

8. Push the Cursor

9. Turn the multipurpose knob to place the second cursor on the data output

transition.

The Δt readout in the Cursor Menu is the p ropagation delay between the waveforms. horizontal scale (seconds/division) setting.

The readout is valid because the two waveforms have the same

Triggering on a Speciﬁc Pulse Width

You are testing the pulse widths of a signal in a circuit. It is critical that the pulses all be a speciﬁc width, and you need to verify that they are. Edge triggering shows that your signal is as speciﬁed, and the pulse width measurement does not vary from the speciﬁcation. However, you think there might be a problem.

2 option button.

To set up a test for pulse width aberrations, follow these steps:

1. Push

2. Push the single cycle

3. Push the Tr ig Menu button to see the Trigger Menu.

4. Push Ty pe ► Pulse.

5. Push Source ► CH1.

6. Turn the trigger Level knob to set the trigger level near the bottom of the

7. Push When ► = (equals).

8. Turn the multipurpose knob to set the pulse width to the value reported by the

9. Push More ► Mode ► Normal.

You can achieve a stable display with the oscilloscope triggering on normal pulses.

the AutoSet button to trigger a stable display.

option button in the AutoSet Menu to view a

single cycle of the signal, and to quickly take a Pulse Width measurement.

signal.

Pulse Width measurement in step 2.

44 TBS1000 Series Oscilloscopes User Manual

Application Examples

1. Push the When op pulses that meet the speciﬁed When condition, the oscilloscope triggers.

NOTE. The trigger frequency readout shows the frequency of events that the

oscilloscope might consider to be a trigger, and may be less than the frequency of the input signal in Pulse Width trigger mode.

Triggering on a Video Signal

You are testing the video circuit in a piece of medical equipment and need to

y the video output signal. The video output is an NTSC standard signal. Use

displa the video trigger to obtain a stable display.

tion button to select ≠, <,or>. If there are any aberrant

TBS1000 Series Oscilloscopes User Manual 45

Application Examples

Trigger

ingonVideoFields

NOTE. Most v

properly terminate low impedance cabling. To avoid amplitude inaccuracy from improper loading and reﬂections, place a 75 ohm feedthrough terminator (Tektronix part number 011-0055-02 or equivalent) between the 75 ohm coaxial cable from the signal source and the oscilloscope BNC input.

Automat

1. Push the AutoSet button. When Autoset is complete, the oscilloscope displa

The oscilloscope sets the Standard option when you use the Autoset function.

1. Push the Odd Field or Even Field option buttons from the AutoSet Menu to sync on odd or even ﬁelds only.

Manual. An alternative method requires more steps, but may be necessary depending on the video signal. To use the manual method, follow these steps:

1. Push the 1 (channel 1 menu) button.

2. Pus

3. Push the Tr ig Menu button to see the Trigger Menu.

ideo systems use 75 ohm cabling. The oscilloscope inputs do not

ic. To trigger on the video ﬁelds, follow these steps:

ys the video signal with sync on All Fields.

h Coupling ► AC.

4. Push the top option button and select Video.

5. Push Source ► CH1.

6. Push the Sync option button and select All Fields, Odd Field,orEven Field.

7. Push Standard ► NTSC.

8. Turn the Horizontal Scale (seconds/division) knob to see a complete ﬁeld

across the screen.

9. Turn the Ve r ti cal S cal e (volts/division) knob to ensure that the entire video signal is visible on the screen.

46 TBS1000 Series Oscilloscopes User Manual

Application Examples

Triggering on V

ideo Lines

Automatic. You

can also look at the video lines in the ﬁ eld. To trigger on the

video lines, follow these steps:

1. Push the AutoS

et button.

2. Push the top option button to select Line to sync on all lines. (The AutoSet

Menu includ

es All Lines and Line Number options.)

Manual. An alterna tive method requires more steps, but may be necessary depending on the video signal. To use this method, follow these steps:

1. Push the Tr ig Men u button to see the Trigger Menu.

2. Push the top option button and select Video.

3. Push the S

ync option button and select All Lines or Line Number and turn

the multipurpose knob to set a speciﬁc line number.

4. Push Sta

ndard ► NTSC.

5. Turn the Horizontal Scale (seconds/division) knob to see a complete video

ross the screen.

line ac

6. Turn the Ve rt i ca l S ca l e (volts/division) knob to ensure that the entire video l is visible on the screen.

signa

Incoming video signal

TBS1000 Series Oscilloscopes User Manual 47

Application Examples

Using the Window

Function to See Waveform

Details

You c an u se th e w waveform without changing the main display.

Ifyouwanttov without changing the main display, follow these steps:

1. Push the Hor

2. Push the Window Zone option button.

3. Turn the horizontal Scale (seconds/division) knob and select 500 ns. This will

be the seconds/division setting of the expanded view.

4. Turn the horizontal Position knob to position the window around the portion of the waveform that you want to expand.

indow (zoom) function to examine a speciﬁc portion of a

iew the color burst in the previous waveform in more detail

iz button to see the Horizontal Menu and select the Main option.

1. Push the Window option button to see the expanded portion of the waveform.

2. Turn the horizontal Scale (seconds/division) knob to optimize viewing the

expanded waveform.

To switch between the Main and Window views, push the Main or Window option button in the Horizontal Menu.

48 TBS1000 Series Oscilloscopes User Manual

Application Examples

Analyzing a Di

fferential Communication Signal

You are having intermittent problems with a serial data communication link, and you suspect poor signal quality. Set up the oscilloscope to show you a snapshot of the serial da

Because this is a differential signal, you use the Math function of the oscilloscope to view a bet

ta stream so you can verify the signal levels and transition times.

ter representation of the waveform.

NOTE. Be sure to ﬁrst compensate both probes. Differences in probe

compensation appear as errors in the d ifferential signal.

To activate the differential signals connected to channel 1 and to channel 2, follow the se steps:

1. Push the 1 (channel 1 menu) button and set the Probe ► Vo lta ge ► Attenuation option to 10X.

2. Push the 2 (channel 2 menu) button and set the Probe ► Vo lta ge ► Attenuation option to 10X.

3. If using P2220 probes, set their switches to 10X.

4. Push the AutoSet button.

5. Push the Math button to see the Math Menu.

TBS1000 Series Oscilloscopes User Manual 49

Application Examples

6. Push the Operat

7. Push the CH1-CH2 option button to display a new waveform that is the

difference be

8. To adjust the vertical scale and position of the Math waveform, follow these steps:

a. Remove the channel 1 and channel 2 waveforms from the display.

b. Turn the channel 1 and channel 2 Vertical Scale and Vertical Position

knobs to adjust the vertical scale and position of the Math waveform.

For a more stable display, push the Single button to control the acquisition of the waveform. Each time you push the Single button, the oscilloscope acquires a snapsho measurements to analyze the waveform, or you can store the waveform to analyze later.

t of the digital data s tream. You can use the cursors or automatic

ion option button and select -.

tween the displayed waveforms.

Viewing Impedance Changes in a Network

You have designed a circuit that needs to operate over a wide temperature range. You need to evaluate the change in impedance of the circuit as the ambient temperature is changed.

Connect the oscilloscope to monitor the input and output of the circuit and capture the changes that occur as you vary the temperature.

50 TBS1000 Series Oscilloscopes User Manual

Application Examples

To view the input and output of the circuit in an XY display, follow th

1. Push the 1 (channel 1 menu) button.

2. Push Probe ► Voltage ►Attenuation ► 10X.

3. Push the 2 (channel 2 menu) button.

4. Push Probe ► Vol ta g e ► Attenuation ► 10X.

5. If using P2220 probes, set their switches to 10X.

6. Connect the c hannel 1 probe to the input of the network, and connect the

channel 2 probe to the output.

7. Push the AutoSet button.

8. Turn the Vertical Scale (volts/division) knobs to display a pproximately the

same amplitude signals on each channel.

9. Push the Display but

10. Push Format ► XY.

The oscilloscope displays a Lissajous pattern representing the input and output characteristics of the circuit.

ton to see the Display Menu.

ese steps:

TBS1000 Series Oscilloscopes User Manual 51

Application Examples

Data Logging

11. Turn the vertic

12. Push Persist ► Inﬁnite.

As you adjus t the ambient temperature, the display persistence captures the changes in the characteristics of the circuit.

You want to use the oscilloscope to record data from a source over time. You can conﬁgu triggered waveform together with timing information over a deﬁned time duration to a USB memory device.

1. Conﬁgure the oscilloscope to use the desired trigger conditions to collect the data. Also, insert a USB memory device in the front-panel USB port.

2. Push the front-panel Utility button.

3. Select

logging menu.

4. Push Da logging feature. When the feature is enabled but not yet triggering, the oscilloscope will display a “Data Logging – Waiting for trigger” message.

re the trigger conditions and direct the oscilloscope to save all the

Data Logging from the resulting side menu to bring up the data

al Scale and vertical Position knobs to optimize the display.

ta Logging from the side menu to select On. This enables the data

Before turning on the data logging feature, you must ﬁrst select the source, the time duration, and the folder.

5. Push the Source button to select the signal source to log data from. You can use either one of the input channels or the Math waveform.

6. Push the Duration button as many times as needed or use the multipurpose knob to select the duration for data logging. The selections range from 0.5 hour to 8 hours in 30 minute increments and from 8 hours to 24 hours in 60 minute increments. You can select Inﬁnite to run data logging with no set time limit.

7. Push the Select Folder buttontodeﬁne where to store the collected information. The resulting menu choices will let you either select an existing folder or deﬁne a new folder. When done, push Back to return to the main data logging menu

8. Start the data acquisition, such as by pushing either the front-panel Single or Run/Stop button.

9. When the oscilloscope ﬁnishes the requested data logging operation, it displays a “Data logging completed” messageandturnsoffthedatalogging feature.

52 TBS1000 Series Oscilloscopes User Manual

Limit Testing

Application Examples

You want to use the oscilloscope to monitor an active input signal against a template and to output pass or fail results by judging whether the input signal is within the bounds of the template.

1. Push the front-panel Utility button.

2. Select Limit Test from the resulting side menu to bring up the limit testing

menu.

3. Select Source from the side menu to deﬁne the source of the waveform to compare against the limit test template.

4. Select Compare To to specify the limit test template against which to compare test signals sectioned with the Source menu item.

5. Push Template Setup from the side menu to deﬁne the boundary to compare with the input source signals. You can create the template from internal or external waveforms with speciﬁ c horizontal and vertical tolerances. You can also create them from previously saved template settings.

On the resulting side menu,

Push Source to set the location of the signal source used to create the limit test template.

Push V Limit and turn the multipurpose knob to set the vertical limitation value, in vertical divisions, by which you can vary the source waveform vertically when you create the test template.

Push H Limit and turn the multipurpose knob to set the horizontal limitation value, in horizontal divisions, by which you can vary the source waveform

rizontally when you create the test template.

Push Apply Template to store the template waveform to the reference channel

elected in the Destination menu.

Push Destination to set the location of the reference memory location used to

tore the limit test template.

Push Display Template and toggle between On and Off to display or not a stored template.

6. Push the Action on Violation button and select an action from the resulting menu to describe what the oscilloscope will do after it detects a violation. You can select between Save Waveform and Save Image.

7. Push the Stop After button and toggle the resulting button with the same name to deﬁne the conditions that will stop limit testing. Select Waveforms, Violations,orTime and use the multipurpose knob to set the desired number

TBS1000 Series Oscilloscopes User Manual 53

Application Examples

of waveforms, n You can also choose to stop the testing manually.

8. Push the Run/S test. After you end the test, the oscilloscope will display the test statistics on the screen. This includes the number of cases tested, the number of cases passed, and the number of cases failed.

umber of violations, or the time in seconds at which to stop.

top Test button to toggle between starting and ending the limit

54 TBS1000 Series Oscilloscopes User Manual

Math FFT

This chapter contains detailed information o n how to use the Math FFT (Fast Fourier Transform). You can use the FFT Math mode to convert a time-domain (YT) signal into its frequency components (spectrum). You can use the Math FFT mode for the following types of analysis:

Analyze harmonics in power lines

Measure harmonic content and d istortion in systems

Characterize noise in DC power supplies

Test impulse response of ﬁlters and s ystems

Analyze v

To use the Math FFT mode, you need to perform the following tasks:

Set up the source (time-domain) waveform

Display the FFT spectrum

Select a type of FFT window

Adjust the sample rate to display the fundamental frequency and harmonics without aliasing

Use zoom controls to magnify the spectrum

Use c

ibration

ursors to measure the spectrum

SettingUptheTime-DomainWaveform

ore you use FFT mode, you need to set up the time-domain (YT) waveform.

Bef To do so, follow these steps:

sh AutoSet to display a YT waveform.

1. Pu

2. Turn the vertical Position knob to move the YT waveform to the center

ertically (zero divisions).

This ensures that the FFT will show a true DC value.

3. Turn the Horizontal Position knob to position the part of the YT waveform that you want to analyze in the center eight divisions of the screen.

The oscilloscope calculates the FFT spectrum using the center 2048 points of the time-domain waveform.

TBS1000 Series Oscilloscopes User Manual 55

Math FFT

4. Turn the Ve r tic waveform remains on the screen. The oscilloscope may display erroneous FFT results (by adding high frequency components) if the entire waveform is not visible.

5. Turn the Horizontal Scale (seconds/division) knob to provide the resolution youwantintheFFTspectrum.

6. If possible, set the oscilloscope to display many signal cycles.

If you turn the horizontal Scale knob to select a faster setting (fewer cycles), the FFT spectrum shows a larger frequency range, and reduces the possibility of FFT aliasing. (See page 59, FFT Aliasing.) However, the oscilloscope a lso displays less frequency resolution.

To set up the FFT display, follow these steps:

1. Push the Math button to see the Math Menu.

2. Push Operation ► FFT.

3. Select

In many cases, the oscilloscope can produce a useful FFT spectrum even if the YT wav or random (noisy).

the Math FFT Source channel.

eform is not triggered. This is especially true if your signal is periodic

al Scale (volts/division) knob to ensure that the entire

Nyquist Frequency

NOTE. Trigger and position any transient or burst waveforms as closely as

possible to the center of the screen.

The highest frequency that any real-time digitizing oscilloscope can measure without errors is one-half the sample rate. This frequency is called the Nyquist frequency. Frequency information above the Nyquist frequency is undersampled, which causes FFT aliasing. (See page 59, FFT Aliasing.)

The math function transforms the center 2048 points of the time-domain waveform into an FFT spectrum. The resulting FFT spectrum contains 1024 points that go from DC (0 Hz) to the Nyquist frequency.

Normally, the display compresses the FFT spectrum horizontally into 250 points, but you can use the FFT Zoom function to expand the FFT spectrum to more clearly see the frequency components at each of the 1024 data points in the FFT spectrum.

NOTE. The oscilloscope vertical response rolls off slowly above its bandwidth

(40 MHz, 60 MHz, 100 MHz or 200 MHz, depending on the model, or 20 MHz when the Bandwidth Limit option is ON). Therefore, the FFT spectrum can show valid frequency information higher than the oscilloscope bandwidth. However, the magnitude information near or above the bandwidth will not be accurate.

56 TBS1000 Series Oscilloscopes User Manual

Math FFT

Displaying th

e FFT Spectrum

Push the Math button to display the Math Menu. Use the options to select the Source channel, Window algorithm, and FFT Zoom factor. You can display only one FFT spect

Math FFT option Settings Comments

Source CH1, CH2 Selects the channel used as the FFT source

Window Hanning, Flattop, Rectangular

FFT Zoom X1, X2, X5, X10

rum at a time.

Selects the FFT window type; (See page 58, Selecting an FFT Wind

Changes t (See page 61, Magnifying and Positioning an FFT

Spectrum.)

ow.)

he horizontal magniﬁcation of the FFT display;

Fundamental frequency component

1. Frequency at the center graticule line.

2. Ver

tical scale in dB per division (0 dB = 1 V

3. Horizontal scale in frequency per division.

4. Sample rate in number of samples per second.

5. FFT window type.

RMS

ency

Frequ component

TBS1000 Series Oscilloscopes User Manual 57

Math FFT

Selecting an F

FT Window

Windows reduce spectral leakage in the FFT spectrum. The FFT ass umes that the YT waveform repeats forever. With an integral number of cycles (1, 2, 3, ...), the YT w discontinuities in the signal shape.

A non-integ end points to be at different amplitudes. The transitions between the start and end points cause discontinuities in the signal that introduce high-frequency transients.

aveform starts and ends at the same amplitude and there are no

ral number of cycles in the YT waveform causes the signal start and

Applying a window to the YT waveform changes the waveform so that the start and stop values are close to each other, reducing the discontinuities.

58 TBS1000 Series Oscilloscopes User Manual

Math FFT

FFT Aliasing

The Math FFT function includes three FFT Window options. There is a trade-off between

frequency resolution and amplitude accuracy with each type of window. What you want to measure and your source signal characteristics will help you to determine which window to use.

Window Measur

Hanning

Flatt

Rectangular Pulses or transients

dic waveforms

Perio

Periodic waveforms Better magnitude, poorer frequency

teristics

Charac

r frequency, poorer magnitude

Bette accuracy than Flattop

accuracy than Hanning

Special-purpose window for waveforms

t do not have discontinuities. This is

tha essentially the same as no window

Problems occur when the oscilloscope acquires a time-domain waveform containing frequency components that are greater than the Nyquist frequency. (See page 56, Nyquist Frequency.) The frequency components that are above the Nyquist frequency are undersampled, appearing as lower frequency components

hat "fold back" around the Nyquist frequency. These incorrect components are

t called aliases.

TBS1000 Series Oscilloscopes User Manual 59

Math FFT

60 TBS1000 Series Oscilloscopes User Manual

Math FFT

Eliminating Aliases

To eliminate al

Turn the Horizontal Scale (seconds/division) knob to set the sample rate to a faster setti the sample rate, the aliased frequency components appear at their proper frequency. If too many frequency components are shown on the screen, you can use the FFT Zoom option to magnify the FFT spectrum.

If you do not need to view frequency components above 20 MHz, set the Bandwidth Limit option to On.

Put an external ﬁlter on the source signal to bandwidth limit the source waveform to frequencies below that of the Nyquist frequency.

Recognize and ignore the aliased frequencies.

Use zoom controls and the cursors to magnify and measure the FFT spectrum.

iases, try the following remedies:

ng. Since you increase the Nyquist frequency as you increase

Magnifying and Positioning an FFT Spectrum

You can magnify and use cursors to take measurements on the FFT spectrum. The oscilloscope includes an FFT Zoom option to magnify horizontally. To magnify vertically, you can use the v ertical controls.

Horizontal Zoom and

Position

Vertical Zoom and Position

The FFT Zoom option lets you horizontally magnify the FFT spectrum without changing the sample rate. Zoom factors are X1 (default), X2, X5, and X10. At zoom factor X1, and with the waveform centered in the graticule, the left graticule line is at 0 Hz and the right graticule line is at the Nyquist frequency.

When you change the zoom factor, the FFT spectrum is magniﬁed about the center graticule line. In other words, the axis of horizontal magniﬁcation is the center graticule line.

Turn the Horizontal Position knob clockwise to move the FFT spectrum to the right. Push the Set To Zero button to position the center of the spectrum at the

enter of the graticule.

The channel vertical knobs become vertical zoom and p osition controls for their respective channels when displaying the FFT spectrum. The Vertical Scale knob provides zoom factors of X0.5, X1 (default), X2, X5, and X10. The FFT spectrum is vertically magniﬁed about the M marker (math waveform reference point on the left edge of the screen).

Turn the Vertical Position knob clockwise to move the spectrum up for the source channel.

TBS1000 Series Oscilloscopes User Manual 61

Math FFT

Measuring an F

FT Spectrum Using Cursors

You can ta ke two measurements on FFT spectrums: magnitude (in dB), and frequency (in Hz). Magnitude is referenced to 0 dB, where 0 dB equals 1 V

You can use the cursors to take measurements at any zoom factor. To do so, follow these steps:

1. Push the Cursor button to see the Cursor Menu.

2. Push Source ► MATH.

3. Push the Ty p e option button to select Magnitude or Frequency.

4. Use the multipurpose knob to move cursors 1 and 2.

Use hori frequency. The options display the delta between the two cursors, the value at cursor 1 position, and the value at cursor 2 position. Delta is the absolute value of cursor 1 minus cursor 2.

zontal cursors to measure magnitude and vertical cursors to measure

RMS

Magnitude cursors Frequency cursors

You can also take a frequency measurement without using the cursors. To do so,

the Horizontal Position knob to position a frequency component on the center

turn graticule line and read the frequency at the top right of the display.

62 TBS1000 Series Oscilloscopes User Manual

USB Flash Drive and Device Ports

This chapter describes how to use the Universal Serial Bus (USB) ports on the oscilloscope to do the following tasks:

Save and recall waveform data or setup data, or save a screen image

Print a screen image

Transfer waveform data, setup data, or a screen image to a PC

Control the oscilloscope with remote commands

To use the PC Communications software, launch and refer to the online help from the software.

USB Flash Drive Port

The front of ﬂash drive for ﬁle storage. The o scilloscope can save data to and retrieve data from the ﬂash drive.

NOTE. The oscilloscope can only support ﬂash drives with a storage capacity

of 64 GB or less.

To connect a USB ﬂash drive, follow these steps:

1. Align the USB ﬂash drive with the USB Flash Drive port on the oscilloscope.

Flash drives are shaped for proper installation.

2. Insert the ﬂash drive into the port until the drive is fully inserted.

theoscilloscopehasaUSBFlashDriveporttoaccommodateaUSB

USB Flash Drive port

For ﬂash drives with an LED, the drive "blinks" while the oscilloscope writes data to or reads data from the drive. The oscilloscope also displays a clock symbol to indicate when the ﬂash drive is active.

After a ﬁle is saved or retrieved, the LED on the drive (if any) stops blinking, and the oscilloscope removes the clock. A hint line also displays to notify you that the save or recall operation is complete.

TBS1000 Series Oscilloscopes User Manual 63

USB Flash Drive and Device Ports

Flash Drive Initial Read

Time

Formatting a Flash Drive

To rem o v e a USB ﬂ blinking or until the hint line appears that says the operation is complete, grab the edge of the drive, and extract the drive from the port.

The oscilloscope reads the internal structure of a USB ﬂash drive each time you install a drive. The time to complete the read depends on the size of the ﬂash drive, how the drive is formatted, and the number of ﬁles stored on the drive.

NOTE. To si gni ﬁcantly shorten the initial read time of 64 MB and larger USB

ﬂash drives, format the drive on your PC.

The Format function deletes all data on the USB ﬂash drive. To format a ﬂash drive, follow these steps:

1. Insert a USB ﬂash drive into the Flash Drive port on the front of the oscilloscope.

2. Push the Utility button to see the Utility Menu.

3. Push File Utilities ► More ► Format.

4. Select Ye s to format the ﬂash drive.

ash drive, wait until the LED on the drive (if any) stops

Flash Drive Capacities

The oscilloscope can store the following types and number of ﬁles per 1 MB of USB ﬂash drive memory:

5 Save All operations; (See page 67, Saves All to Files.) (See page 91, Save All.)

16 screen image ﬁles (capacity depends on the image format); (See page 68, Saves Image to File.) (See page 91, Save Image.)

250 oscilloscope setting (.SET) ﬁles; (See page 92, Save Setup.)

18 waveform (.CSV) ﬁles; (See page 93, Save Waveform.)

File Management Conventions

The oscilloscope uses the following ﬁle management conventions for data storage:

The oscilloscope checks for a vailable space on the USB ﬂash drive before writing ﬁles, and displays a warning message if there is not enough memory available.

Theterm“folder”referstoadirectorylocationontheUSBﬂash drive.

The default location for the ﬁle save or ﬁle recall functions is the current folder.

64 TBS1000 Series Oscilloscopes User Manual

USB Flash Drive and Device Ports

A:\ is the root f

The oscilloscope resets the current folder to A:\ when you power on the oscilloscope powered on.

File names c followed with an extension of one to three characters.

The oscillo with the shortened ﬁle name from the operating system.

File names

You c an use the File Utilities m enu to do the following tasks:

List the contents of the current folder

Select a ﬁle or folder

Navigate to other folders

Create, rename, and delete ﬁles and folders

ttheUSBﬂash drive

Forma

(See page 102, File Utilities for the USB Flash Drive.)

older.

, or w hen you insert a USB ﬂash drive after the oscilloscope is

an have one to eight characters, followed by a period, and then

scope displays long ﬁle names created on PC operating systems

are case insensitive and are displayed in upper case.

Saving and Recalling Files With a USB Flash Drive

There are two ways to operate the USB ﬂash drive for ﬁle storage:

through the Save/Recall m enu

through the alternative Save function of the Print button

You can use the following Save/Recall menu options to write data to or retrieve data from a USB ﬂash drive:

Save Image

Save Setup

ave Waveform

Recall Setup

Recall Waveform

NOTE. The

to a ﬂash drive. For information on how to save many ﬁles at once, or images one after another, refer to Using the Save Functions of the Print Button. (See page 67, Using the Save Function of the Print Front Panel Button.)

print button can be used as a save button for quick storage of ﬁles

TBS1000 Series Oscilloscopes User Manual 65

USB Flash Drive and Device Ports

Save Image , Save Setup,

and Save Waveform

Options

Recall Setup, and Recall

Waveform Options

You can save a sc on the USB ﬂash drive through the Save/Recall menu.

Each save option operates in a similar way. As an example, to save a screen image ﬁle to a ﬂash drive, follow these steps:

1. Insert a USB ﬂash drive into the USB Flash Drive port.

2. Push Utility ► Options ► Printer Setup and set the following options:

Ink Saver On, Off

Layout Portrait, Landscape Printer output orientation

3. Access the screen you want to save.

4. Push the Save/Recall front panel button.

5. Select the Action ► Save Image ► Save option.

The oscilloscope saves the screen image in the current folder and automatically generates the ﬁlename.(Seepage90,Save/Recall.)

You can recall the oscilloscope settings or waveform data from a ﬁle on the USB ﬂash drive through the Save/Recall menu.

reen image, the oscilloscope settings, or waveform data to a ﬁle

Prints the screen image on a white background when you select On

Each recall option operates in a similar way. As an example, to recall a waveform ﬁle from a USB ﬂash drive, follow these steps:

1. Insert the USB ﬂash drive that contains the desired waveform ﬁle into the USB Flash Drive port on the front of the oscilloscope.

2. Push the Save/Recall front panel button.

3. Select the Action ► Recall Waveform ► Select File option.

You can use the Change Folder option to navigate to a nother folder on the ﬂash drive.

4. Turn the multipurpose knob to select the waveform ﬁle to recall.

The name of the ﬁle in the Recall option changes as you scroll.

5. Select the To option and specify which reference memory location to recall the waveform to (RefA or RefB).

6. Push the Recall FnnnnCHx.CSV option button, where FnnnnCHx.CSV is thenameofthewaveformﬁle.

NOTE. For folders on the ﬂash drive that contain one waveform ﬁle, select the

Save/Recall ► Action ►Recall Waveform ► To option and specify the refere nce memory location to recall the waveform to. The name of the ﬁle appears in the Recall option.(See page 90, Save/Recall.)

66 TBS1000 Series Oscilloscopes User Manual

USB Flash Drive and Device Ports

Using the Save

Saves All t o Files

Function of the Print Front Panel Button

You ca n s et th e (print) front panel button to write data to the USB ﬂash drive as an alterna one of the following options:

Save/Recal

Utility ►Options ► Printer Setup

NOTE. An LE

that writes data to the USB ﬂash drive.

The Save to ﬁles on the USB ﬂash drive. A single Saves All to Files action uses less than 700 kB of space on the ﬂash drive.

Before you can save data to the USB ﬂash drive, you need to change the print f Save/Recall ► Save All ► PRINT Button ► Saves All to Files option.

To sav

1. Insert a USB ﬂash drive into the USB Flash Drive p ort.

tive function. To set the function of the button to save data, access

l ► Save All ► PRINT Button

D by the print button lights to indicate the alternative Save function

s All to Files option lets you save the current oscilloscope information

ront panel button to the alternative Save function. To do so, select the

e all the oscilloscope ﬁles to a USB ﬂash drive, follow these steps:

2. To change the folder d esignated as the current folder, push the Select Folder option button.

The oscilloscope creates a new folder within the current folder each time you push the PRINT front panel button, and automatically generates the folder

me.

3. Set up the oscilloscope to capture your data.

4. Push the

The oscilloscope creates a new folder on the ﬂash drive and saves the screen image, waveform data, and setup data in separate ﬁles in that new folder, using the current oscilloscope and ﬁle format settings. The oscilloscope names the folder ALLnnnn. (See page 90, Save/Recall.)

To see a list of the ﬁles created by the Saves All To Files function, access the Utility ►File Utilities menu.

Source File name

CH(x) FnnnnCHx.CSV, where nnnn is an automatically-generated

MATH

Ref(x) FnnnnRFx.CSV, where x is the reference memory letter

print (Save) button.

number, and x is the channel number

FnnnnMTH.CSV

TBS1000 Series Oscilloscopes User Manual 67

USB Flash Drive and Device Ports

Source File name

Screen Image FnnnnTEK.???, where ??? is the current ﬁle format

Settings FnnnnTEK.SET

File type Contents and uses

.CSV Contains ASCII text strings that list the time (relative to the

.SET Contains an ASCII text string listing of the oscilloscope settings;

Screen im

NOTE. The oscilloscope stores these settings until you change them, even if you

push the

trigger) and amplitude values for each of the 2500 waveform data points and math analysis applications.

refer to the TBS1000, TDS2000C and TPS2000 Series Digital

Oscillosc

ages

Import ﬁl type of image ﬁle depends on the application.

Default Setup button.

; you can import .CSV ﬁles into many spreadsheet

opes Programmer Manual to decode strings.

es into spreadsheet and word processing applications;

Saves Image to File

This option lets you save the oscilloscope screen image to a ﬁle named TEKnn

nn.???, where the .??? is the current Saves Image to File format. The

next table lists the ﬁle formats.

File format Extension Comments

BMP BMP

EPSIMAGE EPS Postscript format

JPEG JPG This bitmap format uses a lossy compression

PCX PCX DOS Paintbrush format

RLE RLE

TIFF TIF Tagged Image File Format

This bitmap format uses a lossless algorithm, and is compatible with most word processing and spreadsheet programs; this is the default.

algorithm, and is commonly used by digital cameras and by other digital photographic applications.

Run-length encoding; this format uses a lossless compression algorithm.

Before you can save data to the USB ﬂash drive, you must change the print button to the alternative Save function. To do so, select the Save/Recall ► Save All ► PRINT Button ► Saves Image to File option. The Save LED adjacent to the print button lights to indicate the alternative function.

68 TBS1000 Series Oscilloscopes User Manual

USB Flash Drive and Device Ports

USB Device Port

To save a screen

1. Insert a USB ﬂash drive into the USB Flash Drive p ort.

2. To change the folder d esignated as the current folder, push the Select Folder

option button.

3. Access the screen you want to save.

4. Push the

The oscilloscope saves the screen image and automatically generates the ﬁle name.

To see a list of the ﬁles created by the Save Image To File function, you can access the Utility ► File Utilities menu.

You can use a USB cable to connect the oscilloscope to a PC, or to a PictBridge compatible printer. The USB Device port is on the rear o f the oscilloscope.

image to a USB ﬂash drive, follow these steps:

print (Save) button.

USB Device port

TBS1000 Series Oscilloscopes User Manual 69

USB Flash Drive and Device Ports

Installing th

e PC Com munications Software on a PC

Before you connect the oscilloscope to a PC with Tektronix OpenChoice PC Communications Software, you must download that software from www.tektron

CAUTION. If you connect the oscilloscope to your PC before you install the

software, the PC will not recognize the oscilloscope. The PC will label the oscilloscope as an Unknown Device and not communicate with the oscilloscope. To avoid this, install the software o n your PC before you connect the oscilloscope to your PC.

NOTE. Be sure you have installed the latest version of PC Communications

software.

Software for your oscilloscope is available through the Software ﬁnder on the Tektronix web site.

To install the PC Communications software, follow these steps:

1. Run th appears on the screen.

ix.com/software and install it on your PC.

e OpenChoice Desktop software on the PC. The InstallShield wizard

Connecting to a PC

2. Foll

3. Exit the InstallShield wizard.

After you install the software on your PC, you can connect the oscilloscope to th

NOTE. You must install the software before you connect the oscilloscope to the

PC. (See page 70, Installing the PC Communications Software on a PC.)

To connect the oscilloscope to the PC, follow these steps:

1. Power on the oscilloscope.

2. Insert one end of a USB cable into the USB Device port on the back of the

3. Power on the PC.

4. Insert the other end of the cable into the desired USB port on a PC.

ow the on-screen directions.

ePC.

oscilloscope.

70 TBS1000 Series Oscilloscopes User Manual

USB Flash Drive and Device Ports

5. If a Found New Ha for the Found New Hardware wizard.

Do NOT search for the hardware to install on the web.

6. For a Windows XP systems, follow these steps:

a. If you see the Tektroni

b. When prompted, select the option that tells Windows NOT to connect to

Windows Update, and click Next.

c. In the next window, you should see that you are installing software for

a USB Test and Measurement Device. If you do not see USB Test and Measurement Device software, the OpenChoice Desktop software is not properly installed.

d. Select the option that installs the software automatically (the recommended

option) and click Next.

Windows will install the driver for y our oscilloscope.

e. If you do not see the USB Test and Measurement Device in s tep c, or

if Windows cannot ﬁnd the software driver, the OpenChoice Desktop software is not properly installed.

In these situations, click Cancel to exit the Found New Hardware wizard. Do NOT allow the wizard to ﬁnish.

rdware message appears, follow the on-screen directions

x PictBridge Device dialog box, click Cancel.

Unplug the USB cable from your oscilloscope and install the OpenChoice Desktop software.

Reconnect your oscilloscope to the PC and follow s teps 6a, 6b, 6c, and 6d.

f. Click Finish.

g. If a dialog labeled Test and Measurement Device appears, select what you

would like Windows to do, and click OK.

7. For Windows 2000 systems:

a. When prompted, select the option that tells W

ofknowndriversandclickNext.

b. In the next window, select USB Test and Measurement Device. If you do

not see a USB Test and Measurement Device selection, the OpenChoice Desktop software is not properly installed.

c. In the next window, click Next to allow Windows to install the driver

for your oscilloscope.

Windows will install the driver for y our oscilloscope.

d. If you do not see the USB Test and Measurement Device in step b, or if

Windows cannot ﬁnd the software driver, the software is not properly installed.

indows to display a list

TBS1000 Series Oscilloscopes User Manual 71

USB Flash Drive and Device Ports

In these situat Do NOT allow the wizard to ﬁ nish.

Unplug the USB

Reconnect your oscilloscope to the PC and follow steps 7a, 7b, and 7c.

8. When prompted, click Finish.

9. If Windows asks you to insert a CD, click Cancel.

10. Run the PC Communications software on your PC.

11. If the oscilloscope and PC do not communicate, refer to the PC

Communications online help and documentation.

Connecting to a GPIB System

If you want to communicate between the oscilloscope and a GPIB system, use a TEK-USB-488 adapter and follow these steps:

1. Connect the oscilloscope to a TEK-USB-488 adapter with a USB cable.

The Accessories appendix has information on how to order an adapter. (See page 123, Accessories.)

ions, click Cancel to exit the Found New Hardware wizard.

cable from your oscilloscope, and install the software.

Command Entry

2. Connect the TEK-USB-488 adapter to your GPIB system with a GPIB cable.

3. Push

4. Run your GPIB software on your GPIB system.

5. If t

NOTE. For complete command information, refer to the TBS1000, TDS2000C and

TPS2000 Series Digital Oscilloscopes Programmer Manual, 077-0444-XX.

the Utility ► Option ► GPIB Setup ► Address option button to select the appropriate address for the adapter, or use the multipurpose knob. The default GPIB address is 1.

he oscilloscope and your GPIB system do not communicate, refer to the information on the software for your GPIB system, and to the user manual for the TEK-USB-488 adapter to resolve the problem.

72 TBS1000 Series Oscilloscopes User Manual

USB Flash Drive and Device Ports

Connecting to

aPrinter

Printing a Screen Image

When you connect the oscilloscope to a PictBridge compatible printer, the oscilloscope and printer can be powered on or off. To connect the oscilloscope to a PictBridge

1. Insert one end of a USB cable into the USB Device port on the oscilloscope.

2. Insert the other end of the cable into the PictBridge port on a PictBridge

compatible printer. Refer to the product documentation for your printer to locate t

3. To test the connection, set up the oscilloscope to print as described in the next proc

NOTE. The printer recognizes the oscilloscope only when the printer is powered

on.

If the oscilloscope asks you to connect to a printer and a printer is connected, you need to power on the printer.

compatible printer, follow these steps:

he port.

edure.

To set up a PictBridge compatible printer, follow these steps:

1. Power on the oscilloscope and the printer.

2. Push the Utility ► Options ► Printer Setup ► PRINT Button and select the Prints option.

3. Set the Ink Saver option to On, the default setting.

4. Push the - more - page 2 of 3 and - more - page 3 o f 3 option buttons to set

up the printer. The oscilloscope queries the printer, and only displays options and values that the printer supports.

If you are not sure which setting to choose, select Default for each option.

5. To print a screen image, push the

The oscilloscope takes a few seconds to capture the screen image. The settings of your printer and print speed determine how long it takes to print the data. Additional time may be required according to the format selected.

NOTE. You can use the oscilloscope while the printer prints.

print front panel button.

TBS1000 Series Oscilloscopes User Manual 73

USB Flash Drive and Device Ports

6. If printing fai on the printer, and try again.

NOTE. The oscilloscope stores these settings until you change them, even if you

push the Default Setup button, or you power off the oscilloscope.

NOTE. To stop sending the screen image to the printer, push Abort Printing.

ls, check that the USB cable is connected to the PictBridge port

74 TBS1000 Series Oscilloscopes User Manual

Reference

Acquire

This chapter describes the menus and operating details associated with each front-panel menu button or control.

Push the Acquire button to set acquisition parameters.

Options Settings Comments

Sample

Peak Detect Use to detect glitches and reduce the

Average Use to reduce random or uncorrelated noise

Averages 4, 16, 64, 128

Use to acquire and accurately display most waveforms; this is the default mode

possibility of aliasing

in the signal display; the number of averages is selectable

Select number of averages

Key Points

If you probe a noisy square wave signal that contains intermittent, narrow glitches, the waveform displayed will vary depending on the acquisition mode you choose.

Sample

Sample. Use Sample acquisition mode to acqu

Peak Detect Average

ire 2500 points and display them at

the horizontal scale (seconds/division) setting. Sample mode is the default mode.

Sample acquisition intervals (2500)

• Sample points

Sample mode acquires a single sample point in each interval.

The oscilloscope samples at the following rates:

TBS1000 Series Oscilloscopes User Manual 75

Reference

Maximum of 500 M

S/s for 25 MHz and 40 MHz models

Maximum of 1 GS/s for 60 MHz, 100 MHz or 150 MHz m odels

At 100 ns and faster settings, this sample rate does not acquire 2500 points. In this case, a Digital Signal Processor interpolates points between the sampled points to make a 2500 point waveform record.

Peak Detect. Use Peak Detect acquisition mode to detect glitches as narrow as 10 ns and to limit the possibility of aliasing. This mode is effective when at the horizontal scale setting of 5 ms/division or slower.

Peak Detect acquisition intervals (1250)

• Sample points displayed

Peak Detect mode displays the highest and lowest acquired voltage in each interval.

NOTE. If you set the horizontal scale (seconds/division) setting to 2.5 ms/div or

faster, the acquisition mode changes to Sample because the sample rate is fast enough that Peak Detect is not necessary. The oscilloscop

edoesnotdisplaya

message to tell you that the mode was changed to Sample.

When there is enough waveform noise, a typical peak dete

ct display shows large black areas. The oscilloscope displays this area with diagonal lines to improve display performance.

Typical peak detect display

TBS1000 peak detect display

Average. Use Average acquisition mode to reduce random or uncorrelated noise in the signal you want to display. Data is acquired in sample mode, then a number of waveforms are averaged together.

Select the number of acquisitions (4, 16, 64, or 128) to average for the waveform.

Run/Stop Button. Push the Run/Stop button when you want the oscilloscope to continuously acquire waveforms. Push the button again to stop the acquisition.

76 TBS1000 Series Oscilloscopes User Manual

Reference

Single Button.

Push the Single (single sequence) button when you want the oscilloscope to acquire a single waveform and then stop. Each time you push the Single button, the oscilloscope begins to acquire another waveform. After the oscilloscope detects a trigger it completes the acquisition and stops.

Acquisition mode Single button

Sample, Peak Detect Sequence is complete when one acquisition is acquired

Average

Sequence is complete when the deﬁned number of acquisitions is reached; (See page 75, Acquire .)

Scan Mode Display. You can use the Horizontal Scan acquisition mode (also called Roll mode) to continuously monitor signals that change slowly. The oscilloscope displays wavefo

rm updates from the left to the right of the screen and erasesoldpointsasitdisplaysnewpoints. A moving, one-division-wide blank section of the screen separates the new w aveform points from the old.

The oscilloscope changes to the Scan acq

uisition mode when you turn the Horizontal Scale knob to 100 ms/div or slower, and select the Auto Mode option in the Trigger Menu.

To disable Scan mode, push the Tr i g Menu button and

set the Mode option to

Normal.

topping the Acquisition. While the acquisition is running, the waveform display

is live. Stopping the acquisition (when you push the Run/Stop button) freezes the display. In either mode, the waveform display can be scaled or positioned with the vertical and horizontal controls.

Autorange

WhenyoupushtheAutoRange button, the oscilloscope activates or deactivates the Autorange function. An LED light turns on adjacent to the AutoRange button that indicates when the function is active.

This function automatically adjusts setup values to track a signal. If the signal changes, the setup continues to track the signal. When you power on the oscilloscope, autoranging is always inactive.

Options Comment

Autoranging

Vertical and Horizontal Tracks and adjusts both axes

Vertical Only

Horizontal Only

Undo Autoranging

Activates or deactivates the Autorange function; when activated the adjacent LED light turns on

Tracks and adjusts the Vertical scale; horizontal settings

Tracks and adjusts the Horizontal scal vertical settings

Causes the oscilloscope to recall the previous setup

does not change the

e; does not change the

TBS1000 Series Oscilloscopes User Manual 77

Reference

The following c

onditions cause autorange to adjust settings:

Too many or too few waveform periods for a clear display of the trigger source (excep

t when in Vertical Only)

Waveform amplitude too large or too small (except w hen in Horizontal Only)

Ideal trigger level changes

When you push the AutoRange button, the oscilloscope adjusts controls to produce a usable display of the input signal.

Function Setting

Acquire m

Display format

Display

Horizon

Horizontal view Main

Run/Stop

Horizontal scale (seconds/division)

Trigger coupling

Trigger holdoff

Trigger level Adjusted

Tri

Vertical bandwidth Full

Vertical BW lim it

Vertical coupling

Vertical invert

Vertical scale (volts/division)

ode

persist

tal position

gger mode

Sample

Off

Adjuste

RUN

Adjusted

Minimum

Edg

Off

Adjusted

The following changes to the setup of the oscilloscope deactivate autorange:

Vertical s cale deactivates vertical autoranging

Horizontal scale deactivates horizontal autoranging

Display or remove a channel waveform

Trigger settings

Single sequence acquisition mode

Recall a setup

XY Display format

Persistence

78 TBS1000 Series Oscilloscopes User Manual

Tektronix TBS1042, TBS1152, TBS1062, TBS1022, TBS1102 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual