Agilent ESG-2000A Users Guide

Notice

Hewlett-Packard to Agilent Technologies Transition

This manual may contain references to HP or Hewlett-Packard. Please note that HewlettPackard's former test and measurement, semiconductor products and chemical analysis businesses are now part of Agilent Technologies. To reduce potential confusion, the only change to product numbers and names has been in the company name prefix: where a product name/number was HP XXXX the current name/number is now Agilent XXXX. For example, model number HP 8648 is now model number Agilent 8648.

Contacting Agilent Sales and Service Offices

The sales and service contact information in this manual may be out of date. The latest service and contact information for your locatio n can be found on the Web at:

http://www.agilent.com/find/assist

If you do not have acce ss to the Inte rnet, contact your field e ngineer. In any corre sponden ce or telephone conversation, refer to your instrument by its model number and full serial number.

Printed in USA July 2004

User’s Guide

HP ESG Series Signal Generators

Serial Number Prefixes:

HP ESG-1000A, US3704 through US3723 HP ESG-2000A, US3704 through US3723 HP ESG-3000A, US3704 through US3723 HP ESG-4000A, US3704 through US3723

HP Part No. E4400-90076

Printed in USA

Print Date: December 1997 Supersedes: June 1997

prior written permission is prohibited, except as allowed under the copyright laws.

1400 Fountaingrove Parkway, Santa Rosa, CA 95403-1799, USA

Contents

1 Preparing for Use

Installing the Signal Generator 1-2

Checking the Shi pment 1-2 Installing Front Handles and Rack Mount Flanges 1-4 Meeting Electrical and Environmental Re quirements 1-5 Adjusting the Display Contrast 1-6 Selecting Inverse Video 1-6 Adjusting the Screen Saver 1-6 Selecting the Signal Generator’s HP-IB Address 1-7 Selecting the Signal Generator’s Programming Language 1-8

Verifying Signal Generator Operation 1-9

Operator’s Check 1-9

2 Using Functions

Setting Frequency and Power Levels 2-2

To Set the RF Frequency 2-2 To Set a Frequency Reference and a Frequency Offset 2-3 To Set the RF Output Power Level 2-4 To Set an Amplitude Reference and an Amplitude Offset 2-4

Setting Up Internally-Generated Amplitude Modulation 2-6

Setting the Carrier Frequency 2-6 Setting the Power Level 2-6 Setting the AM Depth 2-6 Setting the AM Rate 2-7 Turning On Amplitude Modulation 2-7

Setting Up Internally-Generated Frequency Modulation 2-8

Setting the Carrier Frequency 2-8 Setting the Power Level 2-8 Setting the FM Deviation 2-8 Setting the FM Rate 2-9 Turning On Frequ en cy Mo du la tio n 2-9

Contents

Creating a Step Sweep and a List Sweep 2-10

Configuring a Step Sweep 2-10 Turning On Continuous Step Sweep 2-11 Configuring a List Sweep Using Step Sweep Dat a 2-11 Editing List Sweep Points 2-11 Turning On List Sweep for a Single Sweep 2-12

Saving and Recalling an Instrument State 2-13

3 Troubleshooting

If You Encounter a Problem 3-2

• No RF Output? 3-2

• RF Output Power too Low? 3-2

• No Modulation at the RF Output? 3-2

• Can’t Turn Off Sweep Mode? 3-3

• Recalled a Register and Sweep List is Missi ng? 3-3

• All of the Registers Where You Previously Stored Instrument States are

Empty? 3-3

• Saved an Instrument State in a Register but the Register is Empty or Contains the

Wrong State? 3-3

• The Power Supply has Shut Down 3-3

• Incorrect List Sweep Dwell Time? 3-4

• Can’t Turn Off Help Mode? 3-4

• LF OUTPUT Signal is a Sinewave but the RF OUTPUT Signal is a Pulse

Squarewave? 3-4

Error Messages 3-5

The Front Panel Error Queue 3-5 The SCPI Remote Interface Error Queue 3-5

Querying the Error Queu e 3-7

Error Numbers 3 -8

No Error 3-9

Contents

SCPI Standard Error Messages 3-10

Error Message Description 3-10

Command Er ror 3-11

Command Error Message Descriptions 3-11

Execution Error 3-17

Execution Error Message Descriptions 3-17

Device-Specific Error 3-25

Device-Specific Error Message Descriptions 3-25

Query Error 3-28

Query Error Message Descriptions 3-28

ESG Series S ignal Gener ator Instrum ent-Specific Error Messages 3-30

Returning Your Signal Generator to HP 3-50

HP Sales and Service Offices 3-51

4 Front and Rear Panel

Front Panel Overview 4-2

Display Annotation 4-7

Rear Panel Overview 4-11

5 Hardkey and Softkey Reference

AM 5-3

AM Depth 5-3 AM Depth Couple Off On 5-4

Contents

AM Dual-Sine Ampl Ratio 5-4 AM Off On 5-5 AM Path 1 2 5-5 AM Rate 5-6 AM Source 5-7 AM Start Rate 5-8 AM Stop Rate 5-9 AM Sweep Time 5-9 AM Sweep Trigger 5-10 AM Tone 1 Rate 5-10 AM Tone 2 Rate 5-11 AM Waveform 5-11 Bus 5-12 Dual-Sine 5-12 Ext 5-12 Ext 1 AC-Coupled 5-13 Ext 1 DC-Coupled 5-14 Ext 2 AC-Coupled 5-15 Ext 2 DC-Coupled 5-15 Immediate 5-16 Internal 5-16 Noise 5-17 Ramp 5-17 Sine 5-17 Square 5-18 Swept-Sine 5-18 Triangle 5-18 Trigger In Polarity Neg Pos 5-19 Trigger Key 5-19 Trigger Out Polarity Neg Pos 5-20

Ampl 5-21

ALC Off On 5-21 Ampl Offset 5-22 Ampl Ref Set 5-22 Ampl Ref Off On 5-23 Atten Hold Off On 5-24 Do Power Search 5-24

Contents

Power Search Manual Auto 5-25

Amplitude 5-27

Arrow Keys 5-29

Display Contrast Keys 5-31

FM 5-33

Bus 5-33 DCFM/DC Dual-Sine 5-34 Ext 5-34 Ext 1 AC-Coupled 5-35 Ext 1 DC-Coupled 5-35 Ext 2 AC-Coupled 5-36 Ext 2 DC-Coupled 5-36 FM/ FM Dev 5-37 FM Dev Couple Off On 5-38 FM Dual-Sine Ampl Ratio 5-38 FM Off On 5-39 FM Path 1 2 5-40 FM Rate 5-41 FM Source 5-42 FM Start Rate 5-43 FM Stop Rate 5-44 FM Sweep Time 5-44 FM Sweep Trigger 5-45 FM Tone 1 Rate 5-45 FM Tone 2 Rate 5-46 FM Waveform 5-46 Immediate 5-47 Internal 5-47 Noise 5-48 Ramp 5-48 Sine 5-48 Square 5-49

ΦM Cal 5-34

ΦM5-37

Contents

Swept-Sine 5-49 Triangle 5-49 Trigger In Polarity Neg Pos 5-50 Trigger Key 5-51 Trigger Out Polarity Neg Pos 5-51

Freq 5-53

Adjust Phase 5-53 Freq Multiplier 5-54 Freq Offset 5-55 Freq Ref Off On 5-56 Freq Ref Set 5-56 Mode 1 Optimize <10kHz Offset 5-57 Mode 2 Optimize >10kHz Offset 5-57 Optimize Phase Ref Set 5-58

Φ Noise 5-58

Frequency 5-59

Help 5-61

Hold 5-63

Incr Set 5-65

LF Out 5-67

Bus 5-67 DC 5-68 Dual-Sine 5-68 Ext 5-69 Function Generator 5-69 Immediate 5-70 Internal 5-70 LF Out Amplitude 5-71 LF Out Freq 5-71 LF Out Off On 5-72 LF Out Period 5-72 LF Out Source 5-73

Contents

LF Out Start Freq 5-74 LF Out Stop Freq 5-75 LF Out Sweep Time 5-76 LF Out Sweep Trigger 5-76 LF Out Tone 1 Freq 5-77 LF Out Tone 2 Ampl % Of Peak 5-78 LF Out Tone 2 Freq 5-79 LF Out Waveform 5-79 LF Out Width 5-80 Noise 5-80 Pulse 5-81 Ramp 5-81 Sine 5-82 Square 5-82 Swept-Sine 5-83 Triangle 5-83 Trigger In Polarity Neg Pos 5-84 Trigger Key 5-85 Trigger Out Polarity Neg Pos 5-85

Local 5-87

Mod On/Off 5-89

Mode 5-91

Numeric Keypad 5-93

Phase Modu lation 5-95

ΦM Dev 5-95 ΦM Dev Couple Off On 5 -97 ΦM Dual-Sine Ampl Ratio 5-97 ΦM Off On 5-98 ΦMPath12 5-99 ΦM Rate 5-100 ΦM Source 5-101 ΦM Start Rate 5-102 ΦM Stop Rate 5-103 ΦM Sweep Time 5-103

Contents

ΦM Sweep Trigger 5-104 ΦM Tone 1 Rate 5-104 ΦM Tone 2 Rate 5-105 ΦM Waveform 5-105

Bus 5-106 DCFM/DC Dual-Sine 5-106 Ext 5-107 Ext 1 AC-Coupled 5-107 Ext 1 DC-Coupled 5-108 Ext 2 AC-Coupled 5-108 Ext 2 DC-Coupled 5-109 FM/ Immediate 5-110 Internal 5-110 Noise 5-111 Ramp 5-111 Sine 5-111 Square 5-112 Swept-Sine 5-112 Triangle 5-112 Trigger In Polarity Neg Pos 5-113 Trigger Key 5-114 Trigger Out Polarity Neg Pos 5-114

ΦM Cal 5-106

ΦM Normal High BW 5-109

Power Switch 5-115

Preset 5-117

Pulse 5-127

Ext2 DC-Coupled 5-127 Internal Pulse 5-128 Internal Square 5-128 Pulse Off On 5-129 Pulse Period 5-129 Pulse Rate 5-130 Pulse Width 5-130 Pulse Sourc e 5-131

Contents

Recall 5-133

Delete All Regs in Seq [n] 5-133 Delete All Sequences 5-133 Delete Seq[n] Reg[ nn] 5-134 Recall Reg 5-134 Select Seq 5-135

Return 5-137

RF On/Off 5-139

Save 5-141

Add Comment To Seq[n] Reg[nn] 5-141 Clear Text 5-142 Delete All Regs in Seq [n] 5-142 Delete All Sequences 5-143 Delete Seq[n] Reg[ nn] 5-143 Editing Keys 5-143 Editing Mode Insert Replace 5-144 Save Seq[n] Reg[nn] 5-144 Select Reg 5-145 Select Seq 5-145

Sweep/List 5-147

# Points 5-147 Ampl 5-148 Ampl Start 5 -148 Ampl Stop 5-149 Bus 5-149 Configure List Sweep 5-150 Configure Step Sweep 5-150 Delete File 5-151 Delete Item 5-151 Delete Row 5-151 Dwell Type List Step 5-151 Edit Item 5-152 Ext 5-152 Freq 5-153

Contents

Freq&Ampl 5-153 Freq Start 5-154 Freq Stop 5-154 Goto Bottom Row 5-154 Goto Middle Row 5-155 Goto Row 5-155 Goto Top Row 5-155 Immediate 5-156 Insert Item 5-156 Insert Row 5-156 Load From Selected File 5-157 Load List From Step Sweep 5-157 Load/Store 5-157 Manual Mode Off On 5-158 Manual Point 5-158 Off 5-159 Page Down 5 -159 Page Up 5-159 Point Trigger 5-160 Preset List 5-160 Single Sweep 5-160 Step Dwell 5-161 Store to File 5-161 Sweep 5-162 Sweep Direction Down Up 5-162 Sweep Repeat Single Cont 5-163 Sweep Trigger 5-163 Sweep Type List Step 5-163 Trigger In Polarity Neg Pos 5-164 Trigger Key 5-164 Trigger Out Polarity Neg Pos 5 -165

Trigger 5-167

Utility 5-169

All 5-169 Binary 5-170 Black Pixels Screen Test 5-170

Contents

Brightness 5-170 Catalog Type 5-171 Clear Error Queue(s) 5-171 Clear Text 5-171 Copy File 5-172 Delete All Binary Files 5-172 Delete All Files 5-173 Delete All List Files 5-173 Delete All State Files 5-173 Delete File 5-174 Diagnostic Info 5-174 Display 5-174 Editing Keys 5-175 Editing Mode Insert Replace 5-175 Error Info 5-175 Help Mode Single Cont 5-176 HP8648A/B/C/D 5-176 HP-IB Address 5-177 HP-IB/RS-232 5-177 Instrument Adjustments 5-177 Instrument Info/Help Mode 5-178 Inverse Video Off On 5-178 List 5-178 Memory Catalog 5-179 Mod Status Info Off On 5-179 Off 5-179 Page Down 5-179 Page Up 5-180 Power On Last Preset 5-1 80 Power On/Preset 5-180 Preset Language 5-181 Preset Normal User 5-181 Recall Ref Osc Setting 5-182 Receive Pace None Xon 5-182 Reference Oscillator Adjustment 5-182 Ref Osc Coarse 5-183 Ref Osc Fine 5-183 Remote Languag e 5-183

Contents

Reset RS-232 5-183 Reverse Power Protect ion Normal HP8648 5-184 RS-232 Baud Rate 5-185 RS-232 Echo Off On 5-185 RS-232 Pace 5-185 RTS/CTS 5-186 RTS/CTS Pacing 5-186 RTS On 5-187 Save User Preset 5-187 SCPI 5-188 Screen Saver Delay 5-188 Screen Saver Mode 5-189 Screen Saver Off On 5-189 State 5-190 Step/Knob Ratio 5-190 Store Ref Osc Setting 5-190 Transmit Pace None Xon 5-191 View Next Error Message 5-191 View Previous Error Message 5-192 White Pixels Screen Test 5-192

6 Options and Accessories

Signal Generator Options 6-2

Front Handles (Option 1CN) 6-2 Rack Mount Flanges without Handles (Option 1CM) 6-2 Rack Mount Flanges with Handles (Option 1CP) 6-2 Three Year Warranty (Option W30) 6-2 Move All Front Panel Connectors to Rear Panel (Option 1EM) 6-3 High Stability Timebase (Option 1E5) 6-3 Delete Standard Manual Set (Option 0B0) 6-3 Extra Manual Set (Option 0B1) 6-4 Assembly-Level Service Guide (Option 0BW ) 6-4 Component-Level Informatio n Package (Option 0BV) 6-5 Assembly-Level Service Guide and Component-Level Information Package

(Option 0BX) 6-5 User’s Guide - Traditional Chinese for Taiwan (Option AB0) 6-5

Contents

User’s Guide - Korean (Option AB1) 6- 6 User’s Guide - Chinese (Option AB2) 6-6 User’s Guide - German (Option ABD) 6-6 User’s Guide - Spanish (Option ABE) 6-6 User’s Guide - Japanese (Option ABJ) 6-7

Signal Generator Accessories 6-8

Transit Case (HP Part Number 9211-1296) 6-8 Remote Interface (HP 83300A) 6-8 RS-232 Cable Kit 6-8

Upgrade and Retrofit Kits 6-9

Firmware Upgrade Kit 6-9 Firmware Upgrade Kit with Documentation 6-9 Analog to Digital Retrofit Kit 6 -9

7Operation

8 Safety and Regulatory

Safety Note s 8-2

Instrument Markings 8-3

General Safety Considerations 8-4

Statement of Compliance 8-5

Warranty 8-6

Assistance 8-7

Certification 8-8

Declaration of Conformity 8-9

Contents

Compliance with German Noise Requirements 8-10

9 Specifications

HP ESG Series Signal Generators Specifications 9-2

Frequency 9-2 Sweep Modes 9-3 Internal Reference Oscillator 9-4 Output 9-4 Spectral Purity 9-7 Frequency Modulation 9-8 Phase Modulation 9-10 Amplitude Modulation at fc > 500 kHz 9-11 Pulse Modulation 9-12 Internal Modulation Source 9-13 LF Out (Internal Modulation Source) 9-14 External Modulation Inputs 9-14 Simultaneous Modulation 9-15 Remote Programming 9-15 ISO Compliant 9-15 General 9-16 Accessories 9-16 Options 9-17

Index

1 Preparing for Use

This chapter contains procedures that show you how to install your signal generator, and how to perform a functional check to verify signal generator operation.

1-1

Preparing for Use

Installing the Signal Generator

This section contains procedures for properly installing your signal generator:

• checking the shipment

• installing front handles and rack flange kits

• meeting electrical and environmental requirements

• adjustin g t he display

• selecting the signal generator’s HP-IB address

• selecting the programming language

Checking the Shipment

1. Inspect the shipping container for damage.

Look for signs of damage such as a dented or torn shipping container or cushioning material that shows signs of unusual stres s or compacti ng .

2. Carefully remove the content s from the shipping cont ainer and verify that your or der is

complete. Refer to Table 1-1 for a list of items that are shipped standard with the signal generator and for a list of options that you may also have ordered.

1-2

Table 1-1. Shipment Verification List

Part Number Item Description Option

Unique to Country AC Power Cable Standard

5063-9227 Front Handle Kit 1CN 5063-9214 Rack Flange Kit (without handles) 1CM 5063-9221 Rack Flange Kit (with handles) 1CP

Preparing for Use

Installing the Signal Generator

E4400-90076 User’s Guide

(part of manual set E4400-90075)

E4400-90077 Programming Guide

(part of manual set E4400-90075)

E4400-90078 Quick Reference Guide

(part of manual set E4400-90075)

E4400-90079 Calibration Guide

(part of manual set E4400-90075) E4400-90075 Additional Manual Set OB1 E4400-90008 Service Guide 0BW, 0BX E4400-90015 Component Level Information Guide 0BV, 0BX E4400-90024 User’s Guide, Chinese for Taiwan AB0 E4400-90023 User’s Guide, Korean AB1 E4400-90022 User’s Guide, Chinese AB2 E4400-90027 User’s Guide, German ABD E4400-90026 User’s Guide, Spanish ABE E4400-90025 User’s Guide, Japanese ABJ

Standard

1-3

Preparing for Use

Installing the Signal Generator

Installing Front Handles and Rack Mount Flanges

You can attach handles to the front of the signal generator to facilitate transportation of the i nstrument. Handles are available in a kit which ca n be ordered when the signal generator is purchased (Option 1CN), or at any time afterward. Assembly inst ruc ti ons are i ncl ude d wit h the kit. The kit part number is listed in Table 1-2.

You can also rack mount the signal generator. Hardware is available in kits to install rack mount flanges on the signal generator without or with handles. These kits can be ordered when the signal generator is purchased (Options 1CM and 1CP), or at any time afterward. Assembly instructions are included with the kits. The kit par t numbers are listed in Table 1 -2.

Table 1-2. Front Handle and Rack Mount Flange Kits

Option Description HP Part Number

Option 1CN Front Handle Kit 5063-9227

Option 1CM Rack Mount Kit without Handles 5063-9214

Option 1CP Rack Mount Kit with Handles 5063-9221

Providing Adequate Ventilation

CAUTION Ventilation Requirements: When installing the product in a cabinet, the

convection into and out of the product must not be restricted. The ambient temperature (outside the cabinet) must be less than the maximum operating temperature of the product by 4° C for every 100 watts dissipated in the cabinet. If the total power dissipated in the cabinet is greater than 800 watts, then forced convection must be used.

Cooling holes are lo cat ed on t he sides and bottom of the instrument cover and the rear panel of the instrument. Do not allow these holes to be obstructed as they allow air flow through the signal generator.

1-4

Preparing for Use

Installing the Signal Generator

Meeting Electrical and Environmental Requirements

Line Settings

CAUTION: This product has an autoranging line voltage input. Be sure that the supply voltage is within

the specified range.

The available AC power source must meet the following requirements:

Voltage:

• 100/115 volts nominal (90-132 volt range)

• 230/240 volts nominal (198-254 volt range) Frequency:

• for 100/115 volts: 50/60/400 Hz nominal

• for 230/240 volts: 50/60 Hz nominal Power:

• 200 watts maximum

Verify that the po wer cable i s not da maged and tha t the power s ource sock et outle t provides a protective earth contact.

WARNING This is a Safety Class 1 Product (provided with a protective earthing ground

incorporated in the power cord). The mains plug shall only be inserted in a socket outlet provided with a protective earth contact. Any interruption of the protective conductor inside or outside of the product is likely to m ake the product dangerous. Intentional interruption is prohibited.

CAUTION Always use the three-prong AC power cord supplied with this product. Failure to

ensure adequate earth grounding by not using this cord may cause product damage.

Environment

This product is designed for use in the following environmental conditions:

• indoor use

• < 15,000 feet (4,572 meters) altitude

•0° to 55° C temperature, unless specified differently

• maximum relative humidity 80% for temperatures up to 31° C, decreasing linearly to 50% relative humidity at 40° C

1-5

Preparing for Use

Installing the Signal Generator

CAUTION: This product is designed for use in INSTALLATION CATEGORY II and POLLUTION

DEGREE 2, per IEC 1010 and 664 respectively.

WARNING If this product is not used as specified, the protection provided by the

equipment could be impaired. This product must be used in a normal condition only (in which all means for protection are intact).

Cleaning the Signal Generator

Clean the instrument cabinet using a damp cloth only.

Adjusting the Display Contrast

You can adjust the contrast of the display by pressing the decrease contrast key

or the increase contrast key . These keys are located on the front

panel below the display. Pressing the decrease contrast key and holding it down causes the display

background to gradually darken in comparison to the text on the display. The minimum contrast setting is not a completely black display. Some contrast between the background and the text will still be visible.

Pressing the increase contrast key and holding it down causes the display background to gradually brighten in comparison to the text on the display. If the background does not appear to change, it is probab ly set to the maximu m contrast .

Selecting Inverse Video

The normal display mode for the signal generator is dark text on a light background. To change to inverse video (light text on a dark background), press

Utility, Display and set Inverse Video Off On to On. Inverse video is a persistent

state; it is not affected by an instrument preset or by a power cycle.

Adjusting the Screen Saver

You can increase the life expectancy of the signal generator’s display light by turning on the screen saver. Leaving the display lit for long periods of time or turning the display on and off frequently decreases the life of the bulb. With the screen saver on, the display light is turned off after a defined period of time with no input to the front panel. The display light turns on again when any front panel key is pressed or when a remote command is sent.

1-6

Preparing for Use

Installing the Signal Generator

The screen saver is set to off at the factory. You can turn it on by pressing Utility,

Display, Screen Saver Off On. Each time you press Screen Saver Off On the

selection toggles between

Off and On.

You can ad just the screen saver mode to turn the light on and off or to turn both the light and text on and off. Press toggle between

Light Only and Light&Text. Setting the mode to Light Only turns the

Utility, Display, Screen Saver Mode. You can

display light off but leaves the text visible at a low intensity. To prevent the text from burning the display if you are le aving the display unchanged for lon g periods of time, set the mode to

Light&Text. This mode turns off the display light and the

text. The screen saver delay i s set to 1 hour at the facto ry. You can view and change the

delay by pressing

Screen Saver Delay in the same menu. The current screen saver

delay is displayed in the softkey label and also in the active entry area. To change the delay, enter a new value using the numeric keypad and then press

Enter, or

rotate the front panel knob. The acceptable range of delay values is 1 through 12 hours in 1 hour increments.

The screen saver settings do not change when

Preset is pressed, nor when power

to the instrument is cycled.

Selecting the Signal Generator’s HP-IB Address

The signal generator’s HP-IB address is set to 1 9 at t he f actory. You ca n vi ew an d change the address by pressing HP-IB address is displayed in the softkey label and also in th e active entry area. T o change the address, enter a new value using the numeric keypad and then press

Enter, or rotate the front panel knob. The acceptable range of addresses is 0

through 30. The HP-IB address is a persisten t state; it is not affect ed by an instrume nt preset or

by a power cycle.

Utility, HP-IB/RS-232, HP-IB Address. The current

1-7

Preparing for Use

Installing the Signal Generator

Selecting the Signal Generator’s Programming Language

The default programming language for the signal generator is Standard Commands for Programmable Instruments (SCPI). You can change this language selection by pressing Language menu allows you to select between HP 8656/57-compatible language, HP 8648-compatible language, and SCPI language. Press the softkey for the selection that you desire.

You can also change the language selection by sending the appropriate command over HP-IB. Refer to the programming guide for instructions for changing the language over HP-IB.

You can set the signal generator to default to a selected language as a persistent state (remains unchanged after an instrument preset or power cycle). Press

Power On/Preset, Preset Language. The Preset Langua ge menu allow yo u to selec t

between SCPI, the HP 8656/57-compatible programming language, and HP 8648-compatible language. Press the softkey for the selection that you desire.

Utility, HP-IB/RS-232, Remote Language. The Remote

Utility,

1-8

Preparing for Use

Verifying Signal Generator Operation

The operator’s check is appropriate as a daily functional check by users, or whenever the integrity of the signal generator is in question. Use the operator’s check to verify prop er operation of the signal g enerator. The operator’ s check does not ensure performanc e to specifications. To verify specific ations, refe r to the calibration guide.

Operator’s Check

Perform the following tasks in order:

1. Power On the Signal Generator and Check for Error Messages

This procedure verifies that the signal generator powers up and that the internal instrument check identifies no errors.

1. Turn power on to the signal generator by pressing the power switch. The green LED will light. Let the instrument warm up for one hour.

2. Cycle the power to the signal generator. The green LED should again be lit and the instrument will perform a check.

3. When the display is lit, check to see if the ERR annunciator is turned on.

4. If the ERR annunciator is turned on, review the error messages in th e queue by pressing

Utility, Error Info. The first error message in the queue will be shown in the text area

of the display. Refer to Chapter 3, “Troubleshooting,” for information about the error message.

If there is more than one error message (each message will be designated as 1 of n), press the

5. When you have resolved all of the error messages, press the messages. Then restart this procedure at step two.

Note: For instruments with Option 1E5, ERROR 514, Reference Oven Cold will occur whenever the signal generator is first connected to AC line power. The

OVEN COLD annunciator and the ERR annunciator will both turn on. The OVEN COLD annunciator will automatically clear after approximately 5 minutes. The

error queue cannot be cleared, however , u ntil the OVEN COLD annuncia tor has turned off.

View Next Error Message softkey until you have seen all of the messages.

ClearErrorQueue(s) to delete

1-9

Preparing for Use

Verifying Signal Generator Operation

2. Verify Maximum Specified Powe r is Avai lable at the Maximum Frequency

This procedure verifies that there are no unleveled power indications or error messages at the maximum specified frequency and power level.

1. Calibrate the power meter with the power sensor. (Refer to the power meter’s manual

for assistance.)

2. Connect the power sensor to the signal generator’s RF OUTPUT connector as shown

in Figure 1-1.

Figure 1-1. Operator’s Check Equipment Setup

3. Preset the signal generator to the factory-defined conditions: a. Press b. Press the front panel

Utility, Power On/Preset and toggle Preset until Normal is highlighted.

Preset key.

4. Set the signal generator to its maximum specified frequency: a. Press

Frequency.

b. Use the numeric keypad to enter the signal generator’s maximum specified

frequency as shown in Table 1-3.

c. Terminate your entry by pressing the

5. Set the signal generator to its maximum specified power level: a. Press

Amplitude.

b. Use the numeric keypad to enter the signal generator’s maximum specified power

level as shown in Table 1-3.

c. Terminate your entry by pressing the

1-10

GHz softkey.

dBm softkey.

6. Togg le the front p anel RF On/Off key to turn on RF power to the RF OUTPUT

connector. The display RF ON annunciator will turn on.

7. Verify that the power meter reads the maximum specified output power including the

power level accuracy limits.

8. Check to see if the UNLEVEL or ERR display annunciators have turned on. If these

annunciators are on, refer to the service guide for troubleshoo ting information.

Table 1-3. Frequency and Power Level Limits

Preparing for Use

Verifying Signal Generator Operation

Instrument

Model

Maximum

Specified

Frequency

Maximum

Specified Power

Power Level

Accuracy

Limits

HP ESG-1000A 1 GHz +13 dBm ±0.7 dB HP ESG-2000A 2 GHz +10 dBm ±0.7 dB HP ESG-3000A 3 GHz +10 dBm ±1.0 dB HP ESG-4000A 4 GHz +7 dBm ±1.0 dB

1. The values provided are confidence levels only; they are not specifications.

1-11

Preparing for Use

Verifying Signal Generator Operation

1-12

2 Using Functions

This chapter contains procedures that show you how to use some of the major functions of your signal generator including setting frequency and power levels, setting up modulations, creating step and list sweeps, and saving and recalling instrument states.

2-1

Using Functions

Setting Frequency and Power Levels

Using these procedures, you will learn how to:

• set the RF frequency

• set a frequency reference and a frequency offset

• set the RF output power level

• set an amplitude reference and an amplitude offset

To Set the RF Frequency

1. Turn power on to the signal generator: press the power switch, , so that the green

LED is on. The signal generator will perform an internal check.

2. Press the green

conditions.

NOTE: You can change the preset conditions to a user-defined instrument state. However, for the

purpose of these examples, use the factory-defined preset state (the softkey in the Utility menu must be set to Normal).

3. Observe the frequency area of the display (in the upper left-hand corner). It should

display the maximum specified frequency of your signal generator.

4. The signal generator is set to output an RF signal, however the

set to

On before the RF signal is available at the RF OUTPUT connector. Press

RF On/Off. Notice that the display annunciator changes from RF OFF to RF ON. The

maximum specified frequency is now being output at the RF OUTPUT connector.

5. Change the frequency to 700 MHz by pressing

is now displayed in the active entry area of the display. Using the numeric keypad, enter

700 and then press the MHz terminator softkey. Th e new 700 MHz RF frequency is now

displayed in the frequency area of the display and also in the active entry area.

6. Fr eque ncy is still the active function until you press another front panel f unc tion key.

Change the frequency again by pressing the up arrow key once. Each press of the up arrow key increases the frequency by the value set for the value is displayed in the active entry area.

The down arrow works like the up arrow. Practice stepping the frequency up an d down in 1 MHz increments. Use the necessary.

Preset key. The signal gen e rator w ill ret urn t o a s et of facto ry-d e fined

Preset Normal User

RF On/Off key must be

Frequency. The current RF frequency

Incr Set key. The increment

Incr Set key to change the increment value to 1 MHz, if

2-2

Using Functions

Setting Frequency and Power Levels

7. You can also adjust the RF frequency using the front panel knob. As long as f requency

is the active function (the frequency is displayed in the active entry area), the front panel knob will increase and decrease the RF frequency. Use the front panel knob to adjust the frequency back to 700 MHz.

To Set a Frequency Reference and a Frequency Offset

The following procedure sets the RF output fr equ ency as a reference frequency to which all other frequency parameters are relative. The frequency initially shown on the display will be 0 Hz (the frequency output by the hardware minus the reference frequency.) Although t he display cha nges, the freq uency output doe s not change. Any subsequent frequency changes are shown as incremental or decremental to 0 Hz.

1. Press Preset to r e turn the signal g e nerator to the factory-defined instrument state.

2. Set the RF frequency to 700 MHz.

3. Turn on frequency reference mode and set the current output frequency (700 MHz) as

the reference value. Press frequency output by the hardware, 700 MHz, minus the reference value, 700 MHz). Notice that the REF indicator is turned on and the

4. Set the

RF OFF to RF ON. The RF frequency at the RF OUTPUT connector is 700 MHz.

5. Increment the output frequency by 1 MHz. Press the up arrow key. The frequency

display changes to show 1 MHz (the frequency output by the hardware, 700 MHz + 1 MHz, minus the reference frequency, 700 MHz) and the output frequency changes to 701 MHz.

6. Enter a 1 MHz offset. Press the

keypad and pressing th e (the frequency output by the hardware, 701 MHz, minus the reference frequency, 700 MHz, plus the offset, 1 MHz.) Notice that the OFFSET indicator is turned on. The frequency at the RF OUTPUT connector is still 701 MHz.

RF On/Off key to On. Notice that the display annunciator has changed from

Freq, Freq Ref Se t. The frequency displayed is 0 Hz (the

Freq Ref softkey has toggled to On.

Freq Offset softkey and enter 1 MHz using the numeric

MHz terminator softkey. The f requency displ ay sho ws 2 MH z

2-3

Using Functions

Setting Frequency and Power Levels

To Set the RF Output Power Level

1. Press Preset to r e turn the signal g e nerator to the factory-defined instrument state.

2. Observe the amplitude area of the display (in the upper middle of the disp lay). It should

display −135 dBm. This is the normal preset RF output power level.

3. The signal generator is set to output an RF signal, however the

set to

On before the RF signal is available at the RF OUTPUT connector. Press

RF On/Off. Notice that the display annunciator changes from RF OFF to RF ON. The

RF signal is now being output at a −135 dBm level at the RF OUTPUT connector.

4. Change the power level to −20 dBm. Press

displayed in the active entry area of the display. Using the numeric keypad and the

key, enter −

power is now displayed in the amplitude area of the display and also in the active entry area.

5. Am plitude is still the active function until you press another front panel function key.

You can also change the amplitude using the up and down arrow keys and the front panel knob. Practice changing the amplitude using these methods also.

20 and then press the dBm softkey. The new −20 dBm RF output

Amplitude. The current power level is now

RF On/Off key must be

To Set an Amplitude Reference and an Amplitude Offset

The following procedure sets the RF output power as an amplitude reference to which all other amplitude parameters are relative. The amplitude initially shown on the display will b e 0 dB ( the power output by t he ha rd ware mi nus t he re feren ce power). Although the display changes, the output power does not change. Any subsequent power changes are shown as incremental or decremental to 0 dB.

1. Press Preset to r e turn the signal g e nerator to the factory-defined instrument state.

2. Set the RF output power to −20 dBm.

3. Turn on amplitude reference mode and set the current output power (−20 dBm) as the

reference value. Press 0 dB (the power output by the hardware, −20 dBm, minus the reference value,

−20 dBm.) Notice that the REF indicator is turned on and the toggled to

4. Set the

RF OFF to RF ON. The power at the RF OUTPUT connector is −20 dBm.

5. Use the up arrow key to increase the output power by 10 dB. The amplitude displa y

changes to show 10 dB (the power output by the hardwar e, −20 dBm + 10 dBm, minus the reference power, −20 dBm) and t he output power changes to −10 dBm.

2-4

On.

RF On/Off key to On. Notice that the display annunciator has changed from

Ampl, More (1 of 2), Ampl Ref Set. The amplitude displayed is

Ampl Ref softkey has

Using Functions

Setting Frequency and Power Levels

6. Enter a 10 dB offset. Press the Ampl Offset softkey and enter 10 dB using the numeric

keypad. The amplitude display shows 20 dB (the power output by the hardware,

−10 dBm, minus the reference power, −20 dBm, plus the offset, 10 dB). Notice that the OFFS indicator is turned on. The power at the RF OUTPUT connector is still −10 dBm.

2-5

Using Functions

Setting Up Internally-Generated Amplitude Modulation

Using this procedure, you will learn how to generate an amplitude-modulated signal with the following characteristics:

• carrier frequency set to 1340 kHz

• power level set to 0 dBm

• AM depth set to 90%

• AM rate set to 10 kHz

Setting the Carrier Frequency

1. Press Preset to r e turn the signal g e nerator to the factory-defined instrument state.

2. Press the front panel

normal preset value for frequency is displayed in the active entry area.

3. Enter 1340 kHz using the numeric keypad and pressing the

new carrier frequency is shown in the frequency area of the display. You should see

1.340 000 00 MHz.

Frequency key. Frequency becomes the active function and the

kHz terminator softkey. The

Setting the Power Level

1. Press the front panel Amplitude key. Amplitude becomes the active function and the

normal preset value for amplitude is displayed in the active entry area.

2. Enter 0 dBm using the numeric keypad and pressing the

new power level is shown in the amplitude area of the display. You should see

0.00 dBm.

dBm terminator softkey. The

Setting the AM Depth

1. Press the front panel AM key. The first level menu of softkeys is displayed.

2. Press the

preset value for AM depth is displayed in the active entry area.

3. Enter 90% using the numeric keypad and pressing the

AM depth is displayed below the second line of the softkey.

AM Depth softkey. AM depth becomes the active function and the normal

% terminator softkey. The new

AM Depth softkey. You should see 90.0 % in the

2-6

Using Functions

Setting Up Internally-Generated Amplitude Modulation

Setting the AM Rate

1. In the same AM menu, press the AM Rate softkey. AM rate becomes the active function

and the normal preset value for AM rate is displayed in the active entry area.

2. Enter 10 kHz using the numeric keypad and pressing the

new AM rate is displayed below the the second line of the softkey.

AM Rate softkey. You should see 10.0000 kHz in

kHz terminator softkey. The

Turning On Amplitude Modulation

The signal generator is now configured to output a 0 dBm, amplitude-modulated carrier at 1340 kHz with the AM depth set to 90% and the AM rat e set to 10 kHz. The shape of the waveform is a sinewave (notice that sine is the default for the

AM Waveform softkey). Follow these remaining steps to output the

amplitude-modulated signal.

1. In the same AM menu, press the AM Off On softkey. AM toggles from Off to On.

Notice, also, that the AM display annunciator is turned on indicating that you have enabled amplitude modulation.

2. Press the front panel

changes from RF OFF to RF ON. The modulated signal is now available at the RF OUTPUT connector.

RF On/Off key to toggle RF on. Notice that the display annunciator

2-7

Using Functions

Setting Up Internally-Generated Frequency Modulation

Using this procedure you will configure the signal generator to output a frequency-modulated signal with the following characteristics:

• carrier frequency set to 104.9 MHz

• power level set to 0 dBm

• FM deviation set to 75 kHz

• FM rate set to 10 kHz

Setting the Carrier Frequency

1. Preset the signal generator to normal preset conditions.

2. Press the front panel

normal preset value for frequency is displayed in the active entry area.

3. Enter 104.9 MHz using the numeric keypad and pressing the

The new carrier frequency is shown in the frequency area of the display. You should see 104.900 000 00 MHz.

Frequency key. Frequency becomes the active function and the

MHz terminator softkey.

Setting the Power Level

1. Press the front panel Amplitude key. Amplitude becomes the active function and the

normal preset value for amplitude is displayed in the active entry area.

2. Enter 0 dBm using the numeric keypad and pressing the

new power level is shown in the amplitude area of the display. You should see

0.00 dBm.

dBm terminator softkey. The

Setting the FM Deviation

1. Press the front panel FM/ΦM key. The first level menu of FM sof tkeys is displayed.

2. Press the

preset value for FM deviation is displayed in the active entry area.

3. Enter 75 kHz using the numeric keypad and pressing the

new FM deviation is displayed below the in the second line of the softkey.

FM Dev softkey. FM deviation becomes the active function and the normal

kHz terminator softkey. The

FM Dev softkey. You should see 75.0000 kHz

2-8

Using Functions

Setting Up Internally-Generated Frequency Modulation

Setting the FM Rate

1. In the same FM menu, press the FM Rate softkey. FM rate becomes the active function

and the normal preset value for FM rate is displayed in the active entry area.

2. Enter 10 kHz using the numeric keypad and pressing the

new FM rate i s displayed below the the second line of the softkey.

FM Rate softkey. You should see 10.0000 kHz in

kHz terminator softkey. The

Turning On Frequency Modulation

The signal generator is now configured to output a 0 dBm, frequency-modulated carrier at 104.9 MHz with the FM deviation set to 75 kHz and the FM rate set to 10 kHz. The shape of the waveform is a sinewave (notice that sine is the default for the remaining steps to output the frequency-modulated signal.

1. In the same FM menu, press the FM Off On softkey. FM toggles f rom Off to On. Notice,

2. Press the front panel

FM Waveform softkey - pr ess More (1 of 2) to see the softkey). Follow these

also, that the FM display annunciator is turned on indicating that you have enabled frequency modulation.

RF On/Off key to toggle RF on. Notice that the display annunciator

changes from RF OFF to RF ON. The modulated signal is now available at the RF OUTPUT connector.

2-9

Using Functions

Creating a Step Sweep and a List Sweep

Using this procedure, you will learn two ways to set up the signal generator to sweep a defined set of points. You will create a step sweep and then you will use these points as the basis for a new lis t sweep.

In the first procedure, you will create a step sweep with the following ten equally spaced points:

• frequency range from 525 MHz to 600 MHz

• power level from −20 dBm to 0 dBm

• dwell time 500 ms at each point

In the second procedure, you will take the step sweep points and edit several points to change the sweep informat ion.

Configuring a Step Sweep

1. Press Preset to r e turn the signal g e nerator to the factory-defined instrument state.

2. Press the front panel

Toggle the

3. Press the

that you will use to create the sweep points.

4. Change the start frequency of the step sweep. Press the

525 MHz using the numeric keypad and pressing the

5. Change the stop frequency of the step sweep. Press the

600 MHz using the numeric keypad and pressing the

6. Set the power level for the start of the step sweep. Press the

-20 dBm using the numeric keypad and pressing the

7. Set th e power level for the end of the step sweep. Press the

0 dBm using the numeric keypad and pressing the

8. Set the number of sweep points. Press the

front panel knob until the number 10 is displayed.

Sweep Type List Step softkey to Step.

Configure Step Sweep softkey. Another menu is displayed with softkeys

Sweep/List key. The first level of sweep softkeys is displayed.

Freq Start softkey. Enter

MHz terminator softkey.

Freq Stop softkey. Enter

MHz terminator softkey.

Ampl Start softkey. Enter

dBm terminator softkey.

Ampl Stop softkey. Enter

dBm terminator softkey.

#Points softkey. Enter 10 by rotating the

9. Set the dwell time at each point. Press the

numeric keypad and pressing the

2-10

msec terminator softkey.

Step Dwell softkey. Enter 500 ms using the

Creating a Step Sweep and a List Sweep

Turning On Continuous Step Sweep

1. Press Return to move up one menu level.

Using Functions

2. Press the

either the frequency, amplitude, or frequency and amplitude data. Press the softkey. Selecting this softkey returns you to the previous menu and turns the sweep function on.

3. Press the

that the SWEEP display annunciator is turned on indicating that the signal generator is sweeping.

4. Press the front panel

changes from RF OFF to RF ON. The swept RF signal is now available at the RF OUTPUT connector.

Sweep softkey. Another menu is displayed showing you choices for sweeping

Freq&Ampl

Sweep Repeat Single Cont softkey to toggle from Single to Cont. Notice

RF On/Off key to toggle RF on. Notice that the display annunciator

Configuring a List Sweep Using Step Sweep Data

1. Press the Sweep Type List Step softkey to toggle from Step to List.

2. Press the

you will use to create the sweep points. Notice that the display shows the current list data (when no list has been previously created, the default is one point, set to the signal generator’s maximum frequency, −135 dBm, with a dwell time of 2 ms).

3. Press

The points you defined in the step sweep are automatically loaded into the list.

Configure List Sweep softkey. Another menu is displayed wi th softkey s that

More (1 of 2), Load List From Step Sweep, Confirm Load From Step Sweep.

Editing List Sweep Points

1. Change the dwell time for point 1 to 100 ms. Press the right arrow key twice until the

dwell time is highlighted. Press becomes the active function. Enter 100 ms using t he nume ric keypad and pressi ng the

msec terminator softkey. Notice that the next item in the table (in this case the

frequency value for point 2) becomes hi ghli ghted aft er pressi ng the t erminato r softk ey.

2. Change the frequency for point 4 to 560 MHz. Press the down arrow key two times until

the frequency is highlighted. Press the becomes the active function. Enter 560 MHz using the numeric keypad and pressing the

MHz terminator softkey.

3. Add a new point between points 7 and 8. Press the down arrow until any column in the

point 8 row is highlighted. Press the placed between points 7 and 8, creating a new point 8, and renumbering the successive points.

More (2 of 2), Edit Item. The dwell time for point 1

Edit Item softkey. The frequency for point 4

Insert Row softkey. A copy of point 8 has been

2-11

Using Functions

Creating a Step Sweep and a List Sweep

4. Create a new point between points 10 and 11. Use the arrow keys to highlight the

frequency for point 11. Press t he is placed at point 11 and the frequency item previously occupying that position has shifted down to point 12. The power and dwell time items do not shift down. Press the

Edit Item softkey. Enter 700 MHz using the numeric keypad and pressing the MHz

terminator softkey.

NOTE: An informational ERR annunciat or is turned on at this time in dicating that the frequency

and power lists are of unequal size. You will correct that problem in the following steps. The annunciator will not turn off until you clear the error queue in the Utility menu.

Insert Item softkey. Notice that a new frequency item

The power for point 11 should now be highlighted. Press the press the the

Edit Item softkey and enter 1 dBm using the numeric keypad and pressing

dBm terminator softkey. A new power item is placed at point 11 and the power

Insert Item softkey , the n

item previously occupying that position has shifted down to point 12. The dwell time for point 11 should now be highlighted. Press the

Insert Item softkey.

The dwell time from the previous point 11 has been copied into the new point 11. A new dwell time item is placed at point 11 and the dwell time item previously occupying that position has shifted down to point 12.

Turning On List Sweep for a Single Sweep

1. Press Return to move up one menu level.

2. Notice that the

You do not need to change it.

3. Press the

that the SWEEP display annunciator is turned off. The sweep will not occur until it is triggered.

4. Press

Single Sweep. The signal generator will sweep the points in your list once.

Notice that the SWEEP display annunciator is turned on during the sweep.

5. Change the sweep trigger to occur when you press the front panel

More (1 of 2), Sweep Trigger. Another menu is displayed showing you choi ces for

triggering a sweep. Press the

Sweep softkey is still set to sweep both frequency and amplitude data.

Sweep Repeat Single Cont softkey to toggle from Cont to Single. Notice

Trigger key. Press

Trigger Key softkey.

6. Press

More (2 of 2), Single Sweep to arm the sweep. Notice that the ARMED display

annunciator has turned on.

7. Press the front panel

Trigger key. The signal generator will sweep the points in your list

once and the SWEEP display annunciator is turned on during the sweep.

2-12

Using Functions

Saving and Recalling an Instrument State

Using this procedure, you will learn how to save instrument settings to a memory register and to recall the settings.

1. Press Preset to r e turn the signal g e nerator to the factory-defined instrument state.

2. Set up the signal generator with the following changes: a. Set th e freq uency to 800 MHz. b. Set the amplitude to 0 dBm. c. Enable amplitude modulation (

3. Save this instrument state in the signal generator memory in sequence 1, memory

register 01. Press t h e fr ont p anel sequence number becomes the active function. The signal generator will display the last sequence that you have used. Set the sequence to 1 using the arrow keys.

Press the function. The signal generator will either display the last register used [accompanied by the text: (in use)] or, if no registers are in use, will display register 00 [accompanied by the text: (available)]. Use the arrow keys to select register 01.

4. Press the frequency, amplitude, and modulation changes you made have been stored in signal generator memory.

5. Press

6. Recall your instrument state. Press the front panel

Select Seq softkey shows sequence 1. (This is the last sequence that you have used.)

You do not need to change the sequence. Press recalled in sequence 1 becomes the active function. Press the up arrow key once to select register 1. Notice that your stored instrument settings have been immediately recalled.

Select Reg softkey. The register number in sequence 1 becomes the active

Save Seq[1] Reg[01] softkey. The current instrument settings including the

Preset to return the signal ge nerator to the factory-defined instrument state.

AM display annunciator is on).

Save key and then press the Select Seq softkey. The

Recall key. Notice that the

RECALL Reg. The register to be

2-13

Using Functions

Saving and Recalling an Instrument State

2-14

3 Troubleshooting

This chapter contains instructions for troubleshooting problems you may encounter during operation of the signal gene rat or, it explains error messages you might see, and it explains how to return your signal generator to HP for service.

3-1

Troubleshooting

If You Encounter a Problem

If the signal generator is not operating as you expected, look for help in the following list of symptoms and possible solutions. If you do not find a solution here, refer to the service guide.

• No RF Output?

The front panel RF On/Off key must be set to On before the RF signal is available at the RF OUTPUT connector. Check the annunciator on the display. If it reads

RF OFF, press the RF On/Off key once to toggle the RF output on.

• RF Output Power too Low?

If the RF output power seems too low, look for an OFFSET or REF indicator in the amplitude area of the display.

OFFSET tells you th at an amplitude offset has been set. An am plitude offset

changes the value shown in the amplitude area of the display but does not affect the output power. The amplitude displ ayed i s equal to th e cu rrent power o utput b y the signal generator hard ware plus the value f or the of fset . To eliminate the of fset , press

Ampl, Ampl Offset. Enter 0 using the numeric keypad and press the dB

terminator s oftkey.

REF tells you that the amplitude reference mode is turned on. When this mode is

on, the displayed amplitude value is not the output power level; rather, it is the current power output by the signal generator hardware minus the reference value set by the the

Ampl Ref Set softkey. To exit the reference mode, press Ampl and t oggle

Ampl Ref softkey to Off. You can then reset the output power to the desired

level.

• No Modulation at the RF Output?

Although you can set up and enable various modulations, the RF carrier is modulated by the enabled modulation only when you have also set

On. Check the annunciator on the display. If it reads MOD OFF, press the Mod On/Off key once to toggle the modulation on.

Mod On/Off to

3-2

Troubleshooting

If You Encounter a Problem

• Can’t Turn Off Sweep Mode?

In the sweep mode menu you can choose to set the sweep to various sweep types or to turn sweep off. Press

Sweep/List, Sweep and choose Off from the sweep

mode selections.

• Recalled a Register and Sweep List is Missing?

Sweep information is not stored as part of the instrument state in a storage register. Only the current step and list sweep is a vailable to the signal generator and it cannot be stored nor will it survive a factory preset.

• All of the Registers Where You Previously Stored Instrument

States are Empty?

The save/recall registers are backed-up by a battery when AC power to the signal generator is not connec ted. The bat tery may need to be repla ced. To verify that t he battery has failed, turn power off line power to the signal generator and unplug it. Then plug in the instrument and cycle power on. If either error message

−700 is stored in the error message queue, your battery has failed. Refer to the

−311 or

service guide for battery replacement instructions.

• Saved an Instrument State in a Register but the Register is

Empty or Contains the Wrong State?

If you have intentionally, or unintentionally, selected a register number that is greater tha n 99, the signal generator will automatically select register 99 to save your instrument state. If the register number you intended to use is empty or contains the wrong instrument state, recall register 99 as the instrument state may be saved there.

• The Power Supply has Shut Down

If the power supply is not working, it requires repair or replacement. There is no user-replaceable power supply fuse. Refer to the service guide for instructions.

3-3

Troubleshooting

If You Encounter a Problem

• Incorrect List Sweep Dwell Time?

If the signal generator does not dwell for the correct period of time at each sweep list point, first check the sweep list dwell values for accuracy. Press

Configure List Sweep and the sweep list values will be displayed. Edit the dwell

Sweep/List,

values if they are incorrect. If the list dwell values are correct, check to see if the

is set to

Step. When Step is selected, the signal generator wil l sweep the list points

Dwell Type List Step softkey

using the dwe ll time set for step sweep rather th an the sweep list dwell values. To view the step swee p dwell t ime, press set for the

• Can’t Turn Off Help Mode?

Step Dwell softkey.

Configure Step Sweep and observe the value

There are two help modes (single and continuous) available on the signal generator. In single mode (the factory preset condition) when you press the

Help

key , h elp text i s provi ded f or your next key pr ess. Now pre ss any key an d you wi ll exit the help function and the function of the key you pressed is also executed. When you are in continuous help mode, when you press the

Help key, help text is

provided for your next key press and that key’s function is also executed (except for the again. To change from continuous to single mode, press

Instrument Info/Help Mode and toggle the Help Mode Single Cont softkey to Single.

• LF OUTPUT Signal is a Sinewave but the RF OUTPUT Signal

Preset key). You will stay in this help mode until you press the Help key

Utility,

is a Pulse Squarewave?

The LF OUTPUT connector wi ll out put a signa l where t he fr equency and sh ape is set by the internal source as it is being used by a modulation. However, if you are generating a pulse squarewave, the LF OUTPUT signal is correctly output as a sinewave. That sinewave is later squared by the modulator to generate the pulse modulation.

3-4

Troubleshooting

Error Messages

If an error condition occurs in the signal generator, it will always be reported to both the front panel display error queue and the SCPI (remote interface) error queue. These two queues are viewed and managed separately.

The Front Panel Error Queue

This queue is designed in a circular (rotating) fashion. It can hold up to 30 error messages. If the queue is full, and additional error messages arrive, the oldest errors are lost. The previous ly read messa ges are not cleare d from the queue; they remain in the queue until they are overwritten by a new error message.

The front panel error queue information can be accessed by pressing

Info. From the Error Info menu, you may choose from View Previous Error Message

, View Next Error Message, or Clear Error Queue(s). You can also use the

Utility, Error

RPG and the arrow keys to review the messages/ If there are any unviewed messages in the front panel error queue, the

ERR

annunciator will be activated on the signal g enerator’s display. you can optional ly rotate the RPG or use the arrow keys to view the error messages. To empty the queue, press

Utility, Error Info, Clear Error Queue(s).

There are some special error types called permanent errors. These include

unlock, ovencold, hi/lo, etc. Permanent errors remain in the error queues

until the error condit ion is cl eared. Pre ssing

Utility, Error Info, Clear Error Queue(s)

will empty the front panel error queue, but the permanent errors will be re-reported if the error condition(s) still exist.

The SCPI Remote Interface Error Queue

This queue is construct ed in a linear first-in/first-out fashion. It can hold up to 30 error messages. As errors and events are detected, they are placed in the queue. Unlike the front panel error queue, errors in this queue are not overwritten by the latest incoming error messages. If the queue overflows, the last error in the queue is replaced with the error:

3-5

Troubleshooting

Error Messages

-350,Queue overflow

When the queue overflows, the least recent errors remain in the queue, and the most recent error is discarded. Reading an error from the head of the queue removes that error from the queu e, and opens a posit ion in the tail of the queue for a new error, if one is subsequently detected.

When all the errors have be en read from the queue, further error q ueries will return:

0,No error

The SCPI query SYSTem:ERRor? is used to view messages in the SCPI error queue. The error queue will be cleared when any of the following occur (IEEE

488.2, section 11.4.3.4):

• upon power up

• upon receipt of a *CLS command

• upon reading the last item from the queue

In the SCPI error queue, the permanent errors are re-reported after the message 0, No error is read using the SYSTem:ERRor? query and after the *CLS command is executed.

3-6

Troubleshooting

Querying the Error Queue

The queue query message is a request for the next entry from the instrument’s error queue. This queue contains an integer that can range from -32768 to 32767. Negative error numbers are reserved by the SCPI standard and are defined in this section. Positive error numbers are instrument-dependent. An error value of zero indicates that no error or event has occurred.

The signal generator responds to the

SYSTem:ERRor? (or STATus:QUEue?)

query using the following form: <error number>, <error description> The <error number> is a unique error descriptor. Certain standard error numbers

are described in this section. The <error description> is a short description of the error, (optionally) followed by additional information regarding the error. Short descriptions of the standard error numbers are described in this section. The information that follows the error message may contain corrective actions that should be followed to correct the error condition.

The <device-dependent info> section of the response may contain information which will allow you to determine th e exact error and context. For example:

-131, Invalid suffix;FREQuency:CENT 2.0E+5 dBmV

The maximum string length of <error description> plus <device-dependent info> is 255 characters. The <error description> will be sent exactly as indicated in this document, including case.

If there has been no error, that is, if the queue is empty, the signal genera tor will respond with:

0, No error

If there has been more than one error, the instrument will respond with the first one in its queue. Subsequent responses to the queue until it is empty.

SYSTem:ERRor? will continue with

3-7

Troubleshooting

Error Numbers

The system-defined error numbers are chosen on an enumerated (“1 of N”) basis. The SCPI-defined erro r numbers and t he <error_ descript ion> por tions of t he error query response are list ed here. The first error described in each cla ss (for example,

-100, -200, -300, -400) is a “gene ric” error. In selectin g the proper error numbe r to report, mor e specific error codes are preferred.

3-8

Troubleshooting

No Error

This message indicates that the error queue contains no errors. Error Number Error Description [description/explanation/examples]

No Error

No error

The queue is empty. Every error in the queue has been read or the queue was purposely cleared by power-on or

*CLS.

3-9

Troubleshooting

SCPI Standard Error Messages

Error Message Description

The list of error messages in this chapter describes all of the SCPI error messages associated with signal gener at or operation. A sample error message description is provided below to help you understand how information will be presented in this section.

-222

Data out of range;value clipped to lower limit.

Indicates that t he user has entered a deviatio n, depth or internal source frequency that is beyond the specified limits.

The following list explains each element of the sample error message l i sting shown above.

• SCPI Error Number - The standard SCPI error number (-22 2 in this example). Standard SCPI error numbers are always negative, with the exception of 0, No error.

• SCPI Error Message - The SCPI error message is Data out of range; in this example.

• Detailed Description - The information that appears after the semicolon (;) provides more detail as to the exact nature of the error. In this example, value clipped to lower limit tells you that you have entered a value outside the allowable r ange and the signal generator has changed the value so that it falls within the allowable limits. If no detailed description exists, it will be omitted from the error mess age.

• Explanation/Action Required - The text that appears below each error message listing contains an explanation of the er ror message and, in some cases, corrective actions that should be followed in order to correct the error condition. Though this information is not shown on the signal generator’s display, it can be found in the following section.

3-10

Troubleshooting

Command Error

An error number in the range [-199 to -100] indicates that an IEEE 488.2 syntax error has been detected by the instrument’s parser. The occurrence of any error in this class will cause the command error bit (bit 5) in the event status regist er (IEEE 488.2, section 11.5.1) to be set. If this bit is set, one of the f ollowi ng event s has occurred:

• An IEEE 488.2 syntax er ror has been detected by the parser. That is, a control-to-device message was received which is in violation of the IEEE 488.2 standard. Possible violations include a data element which violates device listening formats o r whose type is unacceptable to the device.

• An unrecognized header was received. Unrecognized headers include incorrect device-specific headers and incorrect or unimplemented IEEE 488.2 common commands.

Events that generate co mmand errors will not gen erate execution errors, device-specific errors, or query errors; see the error definitions in this chapter.

Command Error Message Descriptions

This section lists the signal generator’s command error messages and their associated descriptions.

Error Number Error Description [description/explanation/examples]

-100

-101

-102

Command error

This is a generic syntax error for devices that cannot detect more specific errors. The code indicates only that a command error as defined in IEE 488.2, 11.5.1.1.4 has occurred.

Invalid character

A syntactic command contains a character which is invalid for that type. For example, a header containing an ampersand, SETUP&. This error might be used in place of error numbers

-114, -121, -141 and some others.

Syntax error

An unrecognized command or data type was encountered. For example, a string was recei ved when the device does not accept strings.

3-11

Troubleshooting

Command Error

-103 Invalid separator

The parser was expectin g a separator and encounter ed an illegal character. For examp le, the semicolon was omitted after a program message unit.

-104

-105

-108

-109

-110

Data type error

The parser recognized a data element that is not allowed. For example, numeric or string data was expected, but block data was encountered.

GET not allowed

A Group Execute Trigger was received within a program message (see IEEE 488.2, 7.7). Correct the HP-IB controller program so that the

GET does not occur within a line of HP-IB

program code.

Parameter not allowed

More parameters were received than expected for the header. For example, the parameter, so receiving

Missing parameter

*ESE common command only accepts one

*ESE 0,1 is not allowed.

Fewer parameters were received than required for the header. For example, the parameter, so receiving

Command header error

*ESE common command requires one

*ESE is not allow ed.

-111

-112

3-12

An error was detected in the header. This message is used when the device cannot detect the more specific errors described for errors -111 through -119.

Header separator error

A character which is not a legal header separator was encountered while parsing the header.

Program mnemonic too long

The header contains more than twelve characters (see IEEE

488.2, 7.6.1.4.1).

-113 Undefined header

The header is syntactically correct, but it is undefined for this specific device. For example, device.

Troubleshooting

Command Error

*XYZ is not defined for any

-114

-120

-121

-123

-124

Header suffix out of range

The value of a header suffix attached to a program mnemonic makes the header invalid.

Numeric data error

This error, as well as errors -121 through -129, are generated when parsing a data element which appears to be numeric, including non-decimal numeric types. This particular error message is used if the device cannot detect a more specific error.

Invalid character in number

An invalid character for the data type being parsed was encountered. For example, an al pha in a decim al numeric or a “9” in octal data.

Exponent too large

The magnitude of an exponent was greater than 32000 (see IEEE 488.2, 7.7.2.4.1).

Too many digits

The mantissa of a decimal-numeric data element contained more than 255 digits excluding leading zeros (see IEEE 488.2,

7.7.2.4.1).

-128

-130

Numeric data not allowed

A legal numeric data element was r ece ived, b ut th e devi ce does not accept one in this position for the header.

Suffix error

This error, as well as errors -131 through -139, are generated when parsing a suffix. This particular error message is used if the device cannot detect a more specific error.

3-13

Troubleshooting

Command Error

-131 Invalid suffix

The suffix does not fol low th e synt ax de scr ib ed in IEEE 488.2,

7.7.3.2, or the suffix is inappropriate for this device.

-134

-138

-140

-141

-144

Suffix too long

The suffix contained more than twelve characters (see IEEE

488.2, 7.7.3.4).

Suffix not allowed

A suffix was encountered after a numeric element which does not allow suffixes.

Character data error

This error, as well as errors -141 through -149, are generated when parsing a characte r data elemen t. This parti cular error message is used if the device cannot detect a more specific error.

Invalid character data

Either the character data element contains an invalid character or the particular element received is not valid for the header.

Character data too long

The character data element contains more that twelve characters (see IEEE 488.2, 7.7.1.4).

-148

-150

-151

3-14

Character data not allowed

A legal character data element was encountered where prohibited by the device.

String data error

This error, as well as errors -151 through -159, are generated when parsing a string data element. This particular error message is used if the device cannot detect a more specific error.

Invalid string data

A string data element was expected, but was invalid (see IEEE

488.2, 7.7.5.2). For example, an

END message was received

before the terminal quote character.

-158 String data not allowed

A string data element was encountered, but not allowed by the device at th is point in the parsing.

Troubleshooting

Command Error

-160

-161

-168

-170

-171

Block data error

This error, as well as errors -161 through -169, are generated when parsing a block data element. This particular error message is used if the device cannot detect a more specific error.

Invalid block data

A block data element was expected, but was invalid (see IEEE

488.2, 7.7.6.2). For example, an

END message was received

before the end length was satisfied.

Block data not allowed

A legal block data el ement was encoun tered, but not allowed by the device at this point in the parsing.

Expression data error

This error, as well as errors -171 through -179, are generated when parsing an expression data element. This particular error message is used if the device cannot detect a more specific error.

Invalid expression

-178

-180

The expression data element was invalid (see IEEE 488.2,

7.7.7.2). For example, unmatched parentheses or an illegal character.

Expression data not allowed

A legal expression data was encountered, but was not allowed by the device at this point in parsing.

Macro error

This error, as well as errors -181 through -189, are generated when defining a macro or executing a macro. This particular error message is used if the device cannot detect a more specific error.

3-15

Troubleshooting

Command Error

-181 Invalid outside macro definition

Indicates that a macro parameter placeholder ($<number) was encountered outside of a macro definition.

-183

-184

Invalid inside macro definition

Indicates that the program message unit sequence, sent with a

*DDT or a *DMC command, is syntactically invalid (see IEEE

488.2, 10.7.6.3).

Macro parameter error

Indicates that a command inside the macro definition had the wrong number or type of parameters.

3-16

Troubleshooting

Execution Error

An error number in the range [-299 to -200] indicates that an error has been detected by the instrument’s execution control block. The occurrence of any error in this class will cause the execution error bit (bit 4) in the event status register (IEEE 488.2, section 11.5.1) to be set. If this bit is set, one of the f ollowi ng event s has occurred:

• A <PROGRAM DATA> element following a header was evaluated by the device as outside of its legal input range or is otherwise inconsistent with the de vice’s capabilities.

• A valid program message could not be properly executed du e to some device conditio n.

Execution errors will be reported by the device after rounding and expression evaluation oper ations have been comple ted. Rou nding a numeric d ata ele ment, f or example, will not be rep orted as an exec ution error. Events that generat e execution errors will not generate command errors, device-specific errors, or query errors; see the error definitions in this chapter.

Execution Error Message Descriptions

This section lists the signal generator’s execution error messages and their associated descriptions.

Error Number Error Description [description/explanation/examples]

-200

-201

Execution Error

This is a generic syntax error for devices that cannot detect more specific errors. The code indicates only that an execution error as defined in IEEE 488.2, 11.5.1.1.5 has occurred.

Invalid while in local

Indicates that a command is not executable while the device is in local mode due to a hard local control (see IEEE 488.2,

5.6.1.5). For example, a device with a rotary switch receives a message which would change the switch’s state, but the device is in local so the message cannot be executed.

3-17

Troubleshooting

Execution Error

-202 Settings lost due to rtl

Indicates that a setting associated with a hard local cont ro l (see IEEE 488.2, 5.6.15) was lost when the device changed to LOCS from REMS or to LWLS from RWLS.

-210

-211

-212

-213

-214

Trigger error

Indicates that a GET, *TRG, or a triggering signal could not be executed due to an error.

Trigger ignored

Indicates that a GET, *TRG, or triggering signal was received and recognized by the device, but was ignored because of device timing considerations. For example, the device was not ready to respond.

Arm ignored

Indicates that a n a rmi ng signal was received and reco gni zed by the device but was ignored.

Init ignored

Indicates that a request for a measurement initiation was ignored as another measurement was already in progress.

Trigger deadlock

Indicates that a trigger source for the initiation of a measurement is set to query is received . Th e measu rement cannot begi n unti l a received, but the

GET and a subsequent measurement

GET is

GET would cause an INTERRUPTED error.

-215

-220

3-18

Arm deadlock

Indicates that t he arm source fo r the init iation of a mea surement is set to The measurement cannot begin until a

GET would cause an INTERRUPTED error. Parameter error

GET and a subsequent measurement query is received.

GET is received, but the

Indicates that a program data element related error has occurred. This particular error mes sage is used if the device cannot detect a more specific errors described for errors -221 through -229.

-221 Settings conflict

Indicates that a legal program data element was parsed but could not be executed d ue t o the cur re nt device state (see IEEE

488.2 11.5.1.1.5).

Troubleshooting

Execution Error

-222

-223

-224

-225

-226

Data out of range

Indicates that a legal program data element was parsed but could not be execut ed because the interprete d value was outs ide the legal range defined by the device (see IEEE 488.2

11.5.1.1.5).

Too much data

Indicates that a lega l program data element of block, expres sion or string type was received that contained more data than the device could handle due to memory or related device-specific requirements.

Illegal parameter value

Used where exact value, from a list of possibilities, was expected.

Out of memory

The device has insufficient memory to perform the requested operation.

Lists not same length

Attempted to use LIST structure having individual LISTs of unequal length.

-230

-231

Data corrupt or stale

Possibly invalid data. A new reading was started but not completed since last access.

Data questionable

Indicates that the measurement accuracy is questionable.

3-19

Troubleshooting

Execution Error

-232 Invalid format

Indicates that a legal program data element was parsed but could not be executed because the data format or structure is inappropriate. For example, when loading memory tables or when sending a

SYSTem:SET parameter for an unknown

instrument.

-233

-240

-241

-250

Invalid version

Indicates that a legal program data element was parsed but could not be executed because the version of the data is incorrect to th e device. This part icular e rror is used when f ile or block data elements are recognized by the instrument, but cannot be executed for reasons of version incompatibility. For example, a non- supported file version or a non- supported instrument version.

Hardware error

Indicates that a legal program command or query could not be executed because of a hardware problem in the device. The definition of what constitute s a hardware p roblem is compl etely device-specific. This error is used when the device cannot detect the more specific errors described for errors -241 through -249.

Hardware missing

Indicates that a legal program command or query could not be executed because of missi ng de vice hardware. For example, an option was not installed.

Mass storage error

-252

3-20

Indicates that a mass storage error has occurred. This message is used when a device cannot detect the more specific errors described for errors -251 through -259.

Missing media

Indicates that a legal program command or query could not be executed because of missing media, for instance no disk in the disk drive. The definition of what constitutes missing media is device-specific.

-253 Corrupt media

Indicates that a legal program command or query could not be executed because of corrupt media, for instance a bad disk or incorrect disk format. The definition of what constitutes corrupt media is device-specific.

Troubleshooting

Execution Error

-254

-255

-256

-257

Media full

Indicates that a legal program command or query could not be executed because the media was f ull. For ex ampl e, there is was no space left on the disk. The definition of what constitutes full media is device-specific.

Directory full

Indicates that a legal program command or query could not be executed because the media directory was full. The definition of what constitutes a full media directory is device-specific.

File name not found

Indicates that a legal program command or query could not be executed because the file name on the device media could not be found. For example, an attempt was made to read or copy a nonexistent file. The definition of what constitutes a file not being found is device-specific.

File name error

Indicates that a legal program command or query could not be executed because a file name on the device media was in error. For example, an attempt was made to copy to a duplicate filename. The defi ni ti on of what constitutes a file na me e rr or is device-specific.

-258

-260

Media protected

Indicates that the device or user has attempted to write to a read-only memory subsystem (msus). The definition of a protected media is device-specific.

Expression error

Indicates that an expression data element-related error occurred. This error message is used when the device cannot detect the more specific errors described for errors -261 through -269.

3-21

Troubleshooting

Execution Error

-261 Math error in expression

Indicates that a syntactically legal expression program data element could not be executed due to a math error. For example, a divide-by-zero was attempted. The definition of a math error is device-specific.

-270

-271

-272

-273

Macro error

Indicates that a macro-related execution error occurred. This error message is used when the device cannot detect the more specific errors described for errors -271 through -27 9.

Macro syntax error

Indicates that a syntactically legal macro program data sequence, written in a ccordance with IEEE 488.2, 10 .7.2, could not be executed due to a syntax error within the macro definition (see IEEE 488.2, 10.7.6.3).

Macro execution error

Indicates that a syntactically legal macro program data sequence could not be executed due to an error within the macro definition (see IEEE 488.2, 10.7.6.3).

Illegal macro label

Indicates that the macro label defined in the *DMC command was a legal string syntax, but could not be accepted by the device (see IEEE 488.2, 10.7.3 and 10.7.6.2). For example, the label was too long, the same as a common command header, or contained invalid header syntax.

-274

-275

3-22

Macro parameter error

Indicates that the macro definition improperly used a macro parameter placeholder (see IEEE 488.2, 10.7.3).

Macro definition too long

Indicates that a syntactically legal macro program data sequence could not be executed because the string or block contents were too long for the device to handle (see IEEE

488.2, 10.7.6.1).

-276 Macro recursion error

Indicates that a syntactically legal macro program data sequence could not be executed because the device found it to be recursive (see IEEE 488.2, 10.7.6.4).

Troubleshooting

Execution Error

-277

-278

-280

-281

-282

Macro redefinition not allowed

Indicates that the macro label defined in the

*DMC command

could not be executed because the macro label was already defined (see IEEE 488.2, 10.7.6.4).

Macro header not found

Indicates that a syntactically legal macro label in the

*GMC?

query could not be executed because the header was not previously defined.

Program error

Indicates that a downloaded program-related execution error occurred. This error message is used when the device cannot detect the more specific errors described for errors -281 through -289. The sy ntax used in a prog ram and the mechanism for downloading a program is device-spec if ic .

Cannot create program

Indicates that an att empt t o cr eat e a pr ogr am was unsuccessful. This may be due to insufficient memory.

Illegal program name

-283

-284

Indicates that the name used to reference a program was invalid. For example, rede fining an existing program, del eting a nonexistent program, or in general, referencing a nonexistent program.

Illegal variable name

Indicates that an attempt was made to reference a nonexistent variable.

Program currently running

Indicates that certain operation related to programs may be illegal while the program is running. For example, deleting a running program may be illegal.

3-23

Troubleshooting

Execution Error

-285 Program syntax error

Indicates that a syntax error appears within a downloaded program. The syntax use d when par sing a down loaded pr ogram is device-specific.

-286

-290

-291

-292

-293

-294

Program runtime error

Indicates that a runtime error was detected in a downloaded program.

Memory use error

Indicates that a user req ues t has dir ectly or indir ectl y caused an error relate d to memory o r <data_handles>. This is not the same as “bad” memory.

Out of memory

A downloaded program required more memory than was available in the instrument.

Referenced name does not exist

A downloaded program attempted to access an undefined element (a variable, constant, filename, etc.).

Referenced name already exists

A downloaded program attempted to define an element (a variable, constant, filename, etc.) that had alr eady been define d.

Incompatible type

3-24

Indicates that the type or structure of a memory item is inadequate.

Troubleshooting

Device-Specific Error

An error number in the range [-399 to -300] or [1 to 32767] indi cates that the instrument has detected an error which is not a command error, a query error, or an execution error; some device operations did not properly complete, possibly due to an abnormal hardwar e or firmwar e conditi on. These codes are also us ed for self-test response errors. The occurrence of any error in this class will cause the device-specific error bit (bit 3) in the event status register (IEEE 488.2, section

11.5.1) to be set.

NOTE: For positive error number descriptions see the section titled “ESG Series Signal

Generator Instrument-Specific Error Messages.”

The meaning of positive error codes is device-dependent and may be enumerated or bit mapped. The <error_me ssa ge> str ing for positive error codes is not defined by SCPI. The occurrence of any error in this class will cause the device-specific error bit (bit 3) in the event status register (IEEE 488.2, section 11.5.1) to be set. Events that generate device-specific errors will not generate command errors, or query erro rs; see the other error defi nitions in this section.

Device-Specific Error Message Descriptions

This sectio n lists the signal generator’s device-specific error messages and their associated descriptions.

Error Number Error Description [description/explanation/examples]

-300

-310

-311

Device-specific error

This is a gener ic d evice- depende nt er ror for d evice s t hat cannot detect more specific errors. The code indicates only that a device-dependent er ror as define d in IEEE 488.2 , 1 1.5.1.1.6 has occurred.

System error

Indicates that an e rror , termed “ system error” by the devi ce, has occurred.

Memory error

Indicates that an error was detected in the device’s memory.

3-25

Troubleshooting

Device-Specific Error

-312 PUD memory lost

Indicates that the protected user data saved by the *PUD command has been lost.

-313

-314

-315

-320

-321

-330

Calibration memory lost

Indicates that non-volatile calibration data has been lost.

Save/recall memory loss

Indicates that the non-volatile data saved by the *SAV? command has been lost.

Configuration memory lost

Indicates that non-volatile configuration data saved by the device has been lost. The meaning of this error is device-dependent.

Storage fault

Indicates that the firmware detected a fault when using data storage. This error is not an indication of physical damage or failure of any mass storage element.

Out of memory

Indicates that an internal operation needed more memory than was available.

Self-test failed

-340

-350

3-26

Indicates that the device has detected a failure during its self-test procedure.

Calibration failed

Indicates that the device has detected a failure during its calibration procedure.

Queue overflow

This is a specif ic cod e en tered into the queue in li eu of t he code that caused the error. This message indicates that there is no more room in the queue and an error occurred but was not recorded.

-360 Communication error

This is the generic co mmunic ati on err or for devic es tha t cannot detect the more specific errors described for errors -361 through -363.

Troubleshooting

Device-Specific Error

-361

-362

Parity error in program message

Indicates that the parity bit was not correct when data was received (for example, an incorrect parity bit on a serial port).

Framing error in program message

Indicates that a stop bit was not detected when data was received (for example, a baud rate mismatch).

3-27

Troubleshooting

Query Error

An error number in the range [-499 to -400] ind icates that the output queue con trol of the instrument has detected a problem with the message exchange protocol described in IEEE 48 88.2, cha pter 6 . The occurr ence o f any e rror i n thi s clas s will cause the query error bit (bit 2) to be set in the event status register (IEEE 488.2, section 11.5.1). These errors correspond to message exchange protocol errors described in IEEE 488.2, 6.5. If a query error occurs one of the following is true:

• An attempt is being made to read data from the output queue when no output is either present or pending.

• Data in the output queue has been lost.

Events that generate query errors will not generate command errors, execution errors, or device-specific errors; see the other error definitions in this section.

Query Error Message Descriptions

This section lists the signal generator’s query error messages and their associated descriptions.

Error Number Error Description [description/explanation/examples]

-400

-410

-420

Query Error

This is a generic query error for dev ices that can not detect more specific errors. The code indicates only that a query error as defined in IEE 488.2, 11.5.1.1.7 and 6.3 has occurred.

Query INTERRUPTED

Indicates that a condition causing an INTERRUPTED query error occurred (see IEEE 488.2, 6.3.2.7). For example, a query was followed by

DAB or GET before a response was completely

sent.

Query UNTERMINATED

Indicates that a condit ion caus ing an UNTERMINATED query error occurred (see IEEE 488.2, 6.3.2.2). For example, the device was addressed to talk and an incomplete program message was received.

-430

3-28

Query DEADLOCKED

Troubleshooting

Query Error

Indicates that a condition causing a DEADLOCKED query error occurred (see IEE E 488.2, 6.3.1.7) . For exampl e, both t he input buffer a nd the output bu f fer are fu ll an d the device cannot continue.

-440

Query UNTERMINATED after indefinite response

Indicates that a query was received in the same program message after a query requesting an indefinite response was executed (see IEEE 488.2, 6.3.7.5).

3-29

Troubleshooting

ESG Series Signal Generator Instrument-Specific Error Messages

Some instrument-spec ific error messages inco rporate the negative or “generic” SCPI error number with the addition of device-dependent/instrument-specific (ESG Series signa l gen erato r -s pecif ic) in formati on fo ll owing t he se mico lon i n the error message.

A positive error number indicates that the instrument has detected an error within the HP-IB sy stem, within the instrument’s firmware or hardware, during the transfer of block data, or during calibration.

Error Number Error Description [description/explanation/examples]

-100

-102 Syntax error;Bad HP compatibility language

Command error;R0:No standby mode allowed.

Indicates that, in HP 8656/57 compatibility mode, R0 was received via HP-IB. This command is not supported by the compatibility mode.

Command error;Remote active function DN/UP not available.

Indicates that, in HP 8656/57 compatibility mode, either DN or

UP was received via HP-IB. These comma nds are not supported

by the compatibility mode.

Command error;LO: No low bandwidth ALC mode allowed.

Indicates that, in HP 8656/57 compatibility mode, LO was received via HP-IB. This command is not supported by the compatibility mode.

character <character>.

Indicates that, in HP 8656/57 compatibility mode, illegal language input was received.

3-30

Troubleshooting

ESG Series Signal Generator Instrument-Specific Error Messages

Syntax error;Bad HP compatibility language

token <token>.

Indicates that, in HP 8656/57 compatibility mode, a known command or termination specifier was received when it was not expected. For example, a termination specifier was received with no currently active function.

-213

Init ignored;Unable to sweep due to sweep being in an error state. The sweep error should be fixed.

Indicates that the numbe r of lis t, power, and/or dwell points are in conflict, or a serious system error has occurred in list/sweep. A previous error report should have described the error that is stalling list/sweep.

Init ignored;Cannot initiate sweep in manual mode.

Indicates that the manual mode is on and therefore the instrument cannot sweep.

Init ignored;Sweep is already initiated.

Indicates that the list/sweep is currently initiated and sweeping, therefore the command is not legal according to SCPI.

Init ignored;Sweep is already continuously initiated.

Indicates that the list/sweep is continuously initiated and sweeping, therefore the command is not legal according to SCPI.

-221

Settings conflict;Frequency list and dwell list are of unequal size. Set one list equal to size one, or make their sizes equal.

Indicates that the fr eque ncy list has more than one element and the dwell list has more than one element, and they are not of equal size. If any of the frequency, power, or dwell lists have more than one element, they must al l have the same number of elements. A list of a si ngle element is the sa me as a lis t of equal size with the single element repeated the necessary number of times.

3-31

Troubleshooting

ESG Series Signal Generator Instrument-Specific Error Messages

Settings conflict;Frequency list and power list

are of unequal size. Turn one list off, set one to size one, or make their sizes equal.

Indicates that the fr eque ncy list has more than one element and the power list has more than one element, and they are not of equal size. If any of the frequency, power, or dwell lists have more than one element, they must al l have the sam e number of elements. A list of a single element is the same as a list of equal size with the single element repeated the necessary number of times.

Settings conflict;Power list and dwell list are of unequal size. Set one to size one, or make their sizes equal.

Indicates that the dwell list has more than one element and the power list has more than one element , and they are not of equ al size. If any of the frequency, power, or dwell lists have more than one element, they must all have the same number of elements. A list of a single element is the same as a list of equal size with the single element repeated the necessary number of times.

Settings conflict;The selected external trigger setting conflicts with the previous setting.

Indicates that the external trigger has been set t o positive edge for one trigger source and negative edge for another trigger source.

3-32

Troubleshooting

ESG Series Signal Generator Instrument-Specific Error Messages

Settings conflict;FM2/PM2 value set greater

than FM1/PM1 value. FM1/PM1 changed to match FM2/PM2 value.

The deviation of FM2/PM2 must always be less than or equal to the deviation settings for FM1/PM1. This error will be reported to the queue when FM1/PM1 is enabled and FM2/PM2 is also enabled and an adjustment to either FM2/PM2 deviation causes the FM2 or PM2 deviation to be greater than the FM1 or PM1 devia ti on. I t wil l al so be reported when FM2/PM2 is being turned on, and the last FM1/PM1 deviation setting is less than the current FM2/PM2 deviation setting. In both cases the FM1/PM1 deviation will be adjusted to match the FM2/PM2 deviation.

Settings conflict;FM1/PM1 value set less than FM2/PM2 value. FM2/PM2 changed to match FM1/PM1 value.

The deviation of FM2/PM2 must always be less than or equal to the deviation settings for FM1/PM1. This error will be reported to the queue when FM2/PM2 is enabled and FM1/PM1 is also enabled and an adjustment to either FM1/PM1 deviation causes the FM1 or PM1 deviation to be less than the FM2 or PM2 deviation. It will also be reported when FM1/PM1 is being turned on, and the last FM2/PM2 deviation settin g is greater th an the current FM1/ PM1 deviation setting. In both cases the FM2/PM2 deviation will be adjusted to match the FM1/PM1 deviation.

Settings conflict;Enabled mod source conflicts with previously enabled mod source. Previous mod disabled.

The signal generator has three sources: INT, EXT1, and EXT2 that are shared by t he FM1/PM1, AM1/AM2, FM2/PM2, pulse (INT and EXT2), and burst envelope (EXT1 only). Eac h source can only be used by one of the modulations at a time. If a source is being used by an active modulation, and a request for the source is made by another modulation, the first modulation will be turned off, the second modulation will be turned on.

3-33

Troubleshooting

ESG Series Signal Generator Instrument-Specific Error Messages

Settings conflict;FM & PM not allowed.

Indicates that t here i s a ha rdware confl ict between FM and PM. The most recently requested modulation will be turned on, the previous modulation will be turned off.

-222

Settings conflict;Pattern repeat is changed to continuous because data source is external.

Indicates that, while in non-bursted data generation, Pattern Repeat wa s in Single mode and data source was selected to be External. For non-bursted data generation using an external data source, Pattern Repeat must be in Continuous mode. To continue data transmission, Pattern repeat has been changed to Continuous mode.

Data out of range;value clipped to lower limit.

Indicates that an input value is below the minimum value allowed. Examples are: frequency setting, ref er enc e, or of f se t; output power; power reference and offset; modulation depth, deviation, or modulation source frequency; number of points and start/stop values for list mode; sequence or register values (save/reca ll); dwell time.

Data out of range;value clipped to upper limit.

Indicates that an input value is above the maximum value allowed. Examples are: frequency setting, ref er enc e, or of f se t; output power; power reference and offset; modulation depth, deviation, or modulation source frequency; number of points and start/stop values for list mode; sequence or register values (save/reca ll); dwell time.

3-34

Data out of range;Synthesizer: Frequency out of bounds.

Indicates that the instrument received an internal request for a frequency outside of its supported frequency range. Report the circumsta nces to the factory.

Troubleshooting

ESG Series Signal Generator Instrument-Specific Error Messages

Data out of range;Manual point exceeds list

sizes. Limiting to maximum point.

Indicates that the sweep/list manual point has been reassigned to a smaller number value due to the longest list decreasing in size or being turned off. Its new value is the length of the longest enabled list (frequency or power).

-223

Data out of range;Manual point exceeds frequency list size. Limiting to maximum point.

Data out of range;Manual point exceeds power list size. Limiting to maximum point.

Indicates that the sweep/list manual point has been reassigned to a smaller number value due to the longest list shrinking, or being turned off. Its new value is the length of the power list, which is the longest enabled list .

Too Much Data;The number of list points exceeds the maximum allowed.

Indicates that a SCPI list has been entered that is longer than the maximum allowed length, which is also the maximum number of step points; too many points were given for a frequency, amplitude, or dwell time list. This error can also be caused by attempting to copy items in the list editor when the list is already at its maxi mum length.

-230

Data corrupt or stale;RAM copy of <filename>.

The non-volatile RAM copy of a file is either corrupt or is out of date with the EEPROM m aster copy (if one exists). The system automatically re-initializes the file from EEPROM (if appropriate) or from a default algorithm. A potential cause is a failing backup battery.

3-35

Troubleshooting

ESG Series Signal Generator Instrument-Specific Error Messages

Data corrupt or stale;EEPROM copy of

<filename>.

The EEPROM copy of a file is either co rrupt or otherwise unusable. The system automatically updates the non-volatile RAM copy of the EEPROM copy using a defaul t i nit ia li za ti on. The actual E EPROM file is le ft as it is. Report this proble m to the factory.

-231

-241

Data questionable;RAM copy of <filename>.

Indicates that the non-volatile RAM copy of a file has a correctable error. The system automatically performs the correction. A potential cause is a failing backup battery.

Data questionable;EEPROM copy of <filename>.

Indicates that the EEPROM copy of a file has a correctable error. The system automatically performs the correction. A potential cause is a failing EERPOM. Report this problem to the factory.

Hardware missing; <card_name>

Indicates that a test communication to a hardware card failed. The instrument is most likely not functional. Contact the nearest HP Sales and Service office.

Hardware missing; Installed option boards do not match configuration information.

Indicates that a set of option boards have been installed that do not match the information that was given to the instrument as part of the installation. If this is the result of a custo mer installed option, the wrong option was specified during installation. If this is seen at any oth er time, the likely cause is an EEPROM failure on the option ca rd.

3-36

Troubleshooting

ESG Series Signal Generator Instrument-Specific Error Messages

-250 Mass storage error; EEPROM write timeout on

<filename>.

Indicates that the system was not able to program new data to an EEPROM. The system is still functional, but files w ritten to EEPROM (such as updated calibration data) may be lost when the instrument’s line power is cycled. Contact the nearest HP Sales and Service office.

-253

-254

Corrupt media;User File System

Indicates that the main memory area used for storing instrument states and sequences as well as other data files is corrupt. The system will automatically clear and reconfigure this memory area. A potential ca use is a fa il ing backup battery. Another potential cause could be the loss of line power to the instrument in the middle of a write operation.

Corrupt media;<media_name>

Indicates that a source media (possibly EEPROM) for a data file is corrupt. This error is usually seen in conjunction with errors concerning a certain file.

Media full; Unable to delete saved state from non-volatile memory. No instrument state change.

Indicates that the state memory subsystem STATE: was unable to delete a register. You must free some memory by deleting a file or register using Catalog. Afterwards, try again.

Media full; Save a state register ignored.

Indicates that the state memory subsystem STATE: did not have enough room to save a register. You must free some memory by deleting a file or register using Catalo g. Afterwards, try again.

Media full; Save a state register failed. State marked available.

Indicates that the state memory subsystem STATE: did not have enough room to save a register, so the register was lost and is now m arked available. You must free some memory by deleting a file or register using Catalog. Afterwards, try again.

3-37

Troubleshooting

ESG Series Signal Generator Instrument-Specific Error Messages

-256 File name not found;The internal list file was

not found. There is no list data to return

Indicates that the DWEL_FILE, FREQ_FILE, or POW_FILE has been lost, so a new one will have to be created. These files are the persistent information for list/sweep mode. They contain the dwell list, the frequency list, or the power list. Invoking the list editor will recreate the missing file to a length of one element.

-257

File name error;Delete empty sequence <sequence_name>. Delete sequence ignored.

Indicates that the u ser ha s attempte d to delet e a sequence which is empty (all registers unused). This is informational only. T ypically this error is reported (several times) when the “Delete All Sequences” command is executed.

File name error;Delete a non-saved state register. Delete register ignored.

Indicates that the user has attempted to delete a state which is empty (unused). This is informational only.

File name error;Directory does not support extenders.

Indicates that an extender, which is specified by an @ sign followed by a memory subsystem name, has been specified for an explicit memory subsystem which does not allow the notation. Only the default

(:) memory subsystem allows

extenders.

File name error;Empty filename

Indicates that a filename of “ “ was specified. This is not a legal filenam e.

3-38

File name error;Illegal extender

Indicates that an illegal memory subsystem name was used after the

File name error;Illegal filename character

@. Supported values are @STATE and @LIST.

Indicates that an illegal character was used within a filename.

\, :, @ and all non-printable ASCII characters are illegal in

filenames.

Troubleshooting

ESG Series Signal Generator Instrument-Specific Error Messages

File name error;Only one “:” is allowed.

Indicates that only one colon is allowed in any filename specificat ion. The text before the colon is a user memory subsystem. The valid user choices are and

LIST:.

:, DEFAULT:, STATE:,

-286

-310

File name error;Only one “@” is allowed.

Indicates that only one @ is allowed in any filename specification. It sp ecifi es t he me mory subsyst em tha t a user file actually resides in.

Program runtime error;Floating-Point Exception

Indicates that a floating- point math error (such as a divide by zero) has been detected. The system will attempt to recover automatically. Report the circumstances to the nearest HP Sales and Service office.

System error;RS232 buffer overflow: character lost.

Indicates that the RS232 buffer has been exceeded. The most recent character has been dropped.

System error;Cannot change manual point until list mode error condition cleared.

An error is keeping the sweep/list from being able to set the frequency and/or power. Until the problem is addressed, the manual point cannot be changed.

-311

System error;Unable to determine which attenuator is installed.

Indicates that an invalid attenuator ide nti fi ca tion code has been detected. Possible causes include a loose attenuator control cable. The instrument will likely not produce the proper output power levels. Report this error to the factory.

Memory error;Unable to configure Save Recall registers from non-volatile memory. Save Recall registers re-initialized.

Indicates that saved states are no longer usable. Delete explicitly using Catalog.

3-39

Troubleshooting

ESG Series Signal Generator Instrument-Specific Error Messages

-315 Configuration memory lost;Persistent state

preset. Using factory defaults.

Indicates that the persistent state has been forced to return to factory preset values.

-321

Configuration memory lost;Persistent state version is bad. Using factory defaults.

Indicates that the persistent state version is not recognized as valid and is assumed to be corrupt. The persistent state is reinitialized with the fa ctory preset values.

Configuration memory lost;Persistent state checksum is bad. Using factory defaults.

Indicates that the persistent state is corrupt and had to be reinitialized with the fa ctory preset values.

Out of memory;Unable to verify instrument state file.

Indicates that an inst rume nt st ate fi le cou ld not be acce ss ed and verified because of insuf fici ent memor y. Reduce the size of any sweep lists and try again.

Out of memory;Memory catalog failed.

Indicates that ther e is not enough me mory to complete a catalog listing. Reduce the size of any sweep lists and try again.

Out of memory;Unable to display timeslot window.

3-40

Indicates that the instrument was unable to create part of the graphical user interface due to an inability to allocate memory (possibly due to fragmentation). Please report the circumstances to the factory. The instrument is still functional.

Out of memory;Unable to display protocol window.

Troubleshooting

ESG Series Signal Generator Instrument-Specific Error Messages

Out of memory;Unable to display format window.

Out of memory;Cannot uncompress file.

Indicates that a STATE: file cannot be uncompressed because there is not enough memory to run the decompression algorithm. Recall will fail and there will be no instrument state change. Reduce the size of any sweep lists and try again.

Out of memory;Cannot precalculate frequencies. Try fewer frequencies.

Indicates that memory was exhausted during frequency precalculation (used to speed the process of sweep/list mode). List mode cannot run until either fewer frequencies have been supplied or more memory becomes available and the same set of frequencies are sent again,

:FREQ:MODE LIST is executed. Out of memory;Object Memory Area

FREQ:MODE CW is executed , or

Indicates that memory was exhausted during instrument power-on. Report the circumstances to the factory.

Out of memory;List formation

The device was unable to allocate space for a lookup table, suc h as for list mode precalculation. List mode cannot run until either fewer frequencies have been supplied or more memory becomes available and the same set of frequencies are sent again,

FREQ:MODE CW is executed, or :FREQ:MODE LIST is

executed.

Out of memory;Display system out of memory. An abnormal display may result. Memory consumption should be reduced.

There was not eno ugh memory i n the sy stem t o properl y update the display. Some inconsistencies may be seen. The size of any list/sweep should be red uced, and the sourc e should be preset to clear up any inconsistencies. Report the circumstances to the nearest HP Sales and Service office.

3-41

Troubleshooting

ESG Series Signal Generator Instrument-Specific Error Messages

Out of memory;Unable to check Data Generator

memory.

There was not enough memory in the system to properly complete the data gene rator memory test. This does NOT impl y a data generator memory failure. Check all other error messages to identify possible causes, discontinue list/sweep mode to free some memory, and repeat the test.

-330

Self-test failed;Power supply self-test failure

Indicates that the self-test for a p art i cul ar power supply voltage has failed. The instrument is likely not functional. Contact the nearest HP Sales and Service office.

Self-test failed;EEPROM header checksum error <card_name>.

Indicates that the c ar d ident ific ation header for a ha rdwa re car d is incorrect. If the card is not properly i dentifi ed, the instrument is likely to be non-function al. Contact the nearest HP Sales and Service office.

Self-test failed;Data Generator Memory Test @ 0x____

Indicates that the data generator memory failed. Modulation data produced by the data generator may not be correct. However, if an

Unable to check Data Generator Memory

error was also seen, t his r esult is not concl usive . The addr ess of the first loc ation that failed is repor ted. Contact the nearest HP Sales and Service office.

Self-test failed;Burst Generator Memory Test @ 0x____

3-42

Indicates that the burst generator memory failed. Modulation data produced by the burst generator may not be correct. However, if an

Unable to check Burst Generator Memory

error was also seen, t his r esult is not concl usive . The addr ess of the first loc ation that failed is repor ted. Contact the nearest HP Sales and Service office.

Troubleshooting

ESG Series Signal Generator Instrument-Specific Error Messages

Self-test failed;Bad address position @ 0x____

Indicates that the data generator memory failed. Modulation data produced by the data generator may not be correct. An address that appe ared to have a failed addr ess line was reported. Contact th e nearest HP Sales and Service office.

-430

201

208

Self-test failed;Chips ___, ___ aliased @ 0x____

Indicates that the data generator memory failed. Modulation data produced by the data generator may not be correct. An address that appeared to be aliased across multiple memory chips has been reported. Contact the nearest HP Sales and Service office.

Query DEADLOCKED

Indicates that a SCPI output queue has filled preventing further SCPI command executi on, and the re is no more roo m left in the corresponding SCPI i npu t q u eue to acc ept a query to read from the output queue. The system automatically discards output to correct the deadlock.

Bad file number;Unable to check Data Generator memory.

Indicates that the instrument was not able to generate the pattern necessary to perform the data generator memory test. This does NOT imply a data generator memory failure. Report the proble m to the factory.

I/O error;Unable to delete saved state from non-volatile memory. No instrument state change.

Indicates that a STATe: file could not be deleted due to the file not being found, file corruption, or another file-related problem. If the file is displayed by a memory catalog, delete it explicitly.

I/O error;Save a state register ignored.

Indicates that a STATe: file could not be saved due to insufficient space, file corruption, or another related problem.

3-43

Troubleshooting

ESG Series Signal Generator Instrument-Specific Error Messages

I/O error;Delete empty sequence

<sequence_name>. Delete sequence ignored.

Indicates that the user has attempted to delete a sequence that is empty. This error message is information al only. Typically, this error is reported s everal times when the “Delete Al l Sequences ” command is executed. If the file is displayed by Catalog, delete explicitly.

214

I/O error;Delete a non-saved state register. Delete register ignored.

Indicates that the user has attempted to delete an unused (empty) state. This error message is informational only.

I/O error;Trailing zero found in <filename>. Fixing...

Indicates that a compressed state file has a zero at its end. This is a sign of file corruption. The device fixes the problem by concealing the zero such that it no longer triggers an error message. The file may be corrupt or unusable.

I/O error;Unable to recall from non-volatile memory. No instrument state change.

Indicates t hat the state file is not readable and the recall was aborted.

Not owner;Unable to delete saved state from non-volatile memory. No instrument state change.

Indicates that the user has attempted to write to a read-only memory subsystem.

501

3-44

Attenuator hold setting over range;Frequency change forced attenuator adjust.

Indicates that the firmware has changed the attenuator setting because, while in attenuator hold mode, a change in frequency setting has forced the ALC beyond its range.

Troubleshooting

ESG Series Signal Generator Instrument-Specific Error Messages

Attenuator hold setting over range;Power set to

lower limit.

Indicates that the firmware has changed the power setting to a value other than the requested value due to the fact that, while in attenuator hold mode, the user has requested a power setting that is below the ALC range for the attenuator setting. The power has been set to the lower limit.

508

509

511

512

Attenuator hold setting over range;Power set to upper limit.

Synthesizer unlocked

Indicates that the synthesizer is unlocked. Service may be needed.

Output Section input overdrive

Internal error: report to factory.

Output unleveled

Indicates that the instrument’s output is unleveled.

Reference unlocked

Indicates that the instrument’s reference is unlocked. If an external reference is connected, check the frequency and power. It is possible for this to occur during a poor connection/disconnection of an external reference. If this error reoccurs when no external reference is connected, the instrument may require service.

513 Het VCO unlocked

Indicates that the VCO used to generate output frequencies below 250 MHz is unlocked. The instrument may require service.

3-45

Troubleshooting

ESG Series Signal Generator Instrument-Specific Error Messages

514 Reference Oven cold

Indicates that the r eferenc e oven is not at the re quired ope rating temperature. This is norma l if th e instr ument has been power ed down for a while. If the error persists, the instrument may require service.

515

517

600

Reference board: 10 Mhz reference signal bad or missing

Calibration failure;DCFM DC overrange

Indicates that t he i nstru ment was un able to pe rform a DCFM or DC

ΦM calibration due to the input signal being outside of the

offset range that can be calibrated for.

Calibration failure;Upgrade calibration failed. Data not stored.

Indicates that the calibration stage of the instrument upgrade was not executed successfully. The calibration data has not been stored. The upgrade is not functional. Contact the nearest HP Sales and Service office.

RPP has tripped.

601

3-46

Indicates that the reverse power protection circuit has been triggered. Repeate d tripp ing of t his cir cuit can cause damage to the instrument.

Power search failed.

Indicates that, while executing power search, the level meter circuit failed to return a meaningful value. This event indicates that the power is in a range that the leveling loop cannot properly level. The power will be set to the last properly lev eled power.

ESG Series Signal Generator Instrument-Specific Error Messages

605 DSP FW download failed.

Indicates that the instrument’s firmware was unable to successfully initialize the internal DSP. Report the circumstances to the nearest HP Sales and Service office.

Troubleshooting

606

607

608

615

617

DSP times out.

Indicates that the DSP failed to respond within the appropriate amount of time. Report the circumstances to the nearest HP Sales and Service office.

DSP returns error.

Indicates that the DSP is in an indeterminate state. Report the circumstances to the nearest HP Sales and Service office.

DSP in use by other process.

Indicates that the DSP is in an indeterminate state. Report the circumstances to the nearest HP Sales and Service office.

New wave shape changes limit for internal frequency;frequency changed to new limit.

When using the internal modulation source, the upper limit varies for the different wavef orms. If the us er changes the waveform when the internal source frequency is higher than that allowed for the new waveform, the frequency for the source will be changed, and the user informed of that change with this message.

Configuration error; Data Generator Memory configuration does not match installed board.

This indicates that the memory configuration for an option board does not match th e known me mory limi ts of the board. I f this error has occurred as the result of a customer-installed option, uninstall all op tions and the n reinstall the correct options. If the error persists, contact the factory.

Configuration error; Installed option boards do not match configuration information.

This indicates that the option boards have not been properly installed in t he ins trument . Verify that the correct opt ion boa rds have been installed in the correct slots. Reinstall the correct option. If th e error persists, contact the factory.

3-47

Troubleshooting

ESG Series Signal Generator Instrument-Specific Error Messages

Configuration error; Invalid Data Generator

memory configuration.

This indicates that the memory configuration for an option board does not match the known memory limits of any supported option board. If this error has occurred as the result of a customer-installed option, uninstall all options and then reinstall the correct options. If the error persists, contact the factory.

700

Configuration error; Invalid option board configuration.

This indicates that an inva li d combination of option boards has been configured. If this error has occurred as the result of a customer-installed option, uninstall all options and then reinstall the correct options. If the error persists, contact the factory.

State Save Recall Error;Recall aborted. Unable to recall the state from non-volatile memory.

This indicates that the st ate file was n ot readable, so the recall was aborte d. If state file exists, delete explicitly using th e memory catalog.

State Save Recall Error;Recalled state has a bad checksum. No instrument state change.

This indicates that the st ate file was co rrupt or out- of-date, so the recall was ign ored. If s tate file e xists, del ete expl icitly u sing the memory catalog.

State Save Recall Error;Recall data different from FW revision. No instrument state change.

3-48

Indicates that an attempt was made to recall a state that was saved with an incompatible version of the instrument firmware. This typically occurs when a state file is copied from an instrument with a newer version of fi rmware to an instrument with an older version of firmware. Newer versions of instrument firmware ca n read older state files.

Troubleshooting

ESG Series Signal Generator Instrument-Specific Error Messages

State Save Recall Error;Recall non-saved state

Indicates that a recall was attempted for a state register that is unused. If state file exists, delete explicitly using catalog.

State Save Recall Error;Delete sequence <sequence_name> ignored.

Indicates that a STATE: file in a sequence that is being deleted could not be deleted due to the file not being found, data corruption, etc. If stat e file exists, delete explic itly using the memory catalog.

State Save Recall Error;The state file is from a different firmware revision that does not support comments.

Indicates that an attempt was made to write a comment to a state file revision that does not support comments. Comments in saved state files are not supported by the A.01.00 and A.01.01 releases of the instrument firmware.

3-49

Troubleshooting

Returning Your Signal Generator to HP

If you are returning your signal generator to HP for servicing, fill out and attach a blue repair tag to the instrument. Repair tags are located at the end of this chapter.

Include as much information as possible about the problem: record any error messages that appeared on t he disp lay, and include performance test resu lts or any other specific data on the performance of the signal generator.

Ship the instrument in the original factory packaging materials, if they are available. If not, use similar packaging to properly protect the instrument.

Return the instrument to the nearest HP sales and service office. A list of sales and service offices follows on the next page.

3-50

HP Sales and Servic e Off i ces

US FIELD OPERATIONS

Troubleshooting

HP Sales and Service Offices

Headquarters

Hewlett-Packard Company 19320 Pruneridge Avenue Cupertino, CA 95014, USA (800) 752-0900

Atlanta Annex

Hewlett-Packard Co. 2124 Barrett Park Drive Kennesaw, GA 30144 (404) 648-0000

Headquarters

Hewlett-Packard S.A. 150, Route du Nant-d’Avril 1217 Meyrin 2/Geneva Switzerland (41 22) 780.8111

Headquarters

Hewlett-Packard Company 3495 Deer Creek Rd. Palo Alto, CA 94304-1316 (415) 857-5027

California, Northern

Hewlett-Pac kard Co. 301 E. Evelyn Mountain View, CA 94041 (415) 694-2000

Illinois

Hewlett-Pac kard Co. 545 E. Algonquin Rd. Arlington Heights, IL 60005 (847) 342-2000

EUROPEAN FIELD OPERATIONS

France

Hewlett-Pack ard France 1 Avenue Du Canada Zone D’Activite De Courtaboeuf F-91947 Les Ulis Cedex France (33 1) 69 82 60 60

INTERCON FIELD OPERATIONS

Australia

Hewlett-Pac k ard Australia Ltd. 31-41 Joseph Street Blackburn, Victoria 3130 (61 3) 895-2895

California, Southern

Hewlett-Packard Co. 1421 South Manhattan Ave. Fullerton, CA 92631 (714) 999-6700

New Jersey

Hewlett-Packard Co. 150 Green Pond Road Rockaway, NJ 07866 (201) 586-5400

Germany

Hewlett-Packard GmbH Hewlett-Packard Strasse 61352 Bad Homburg v.d.H Germany (49 6172) 16-0

Canada

Hewlett-Packard (Canada) Ltd. 17500 South Service Road Trans-Canada Highway Kirkland, Quebec H9J 2X8 Canada (514) 697-4232

Colorado

Hewlett-Packard Co. 24 Inverness Place, East Englewood, CO 80112 (303) 649-5512

Texas

Hewlett-Packard Co. 930 E. Campbell Rd. Richardson, TX 75081 (214) 231-6101

Great Britain

Hewlett-Packard Ltd. Eskdale Road, Winnersh Triangle Wokingham, Berkshire RG41 5DZ England (44 734) 696622

China

China Hewlett-Packard Co. 38 Bei San Huan X1 Road Shuang Yu Shu Hai Dian District Beijing, China (86 1) 256-6888

Japan

Hewlett-Packard Japan, Ltd. 9-1 Takakura-Cho, Hachioji Tokyo 192, Japan (81 426) 60-2111

Singapore

Hewlett-Packard Singapore (Pte.) Ltd. 150 Beach Road #29-00 Gateway West Singapore 0718 (65) 291-9088

Taiwan

Hewlett-Packard Taiwan 8th Floor, H-P Building 337 Fu Hsing North Road Taipei, Taiwan (886 2) 712-0404

3-51

Troubleshooting

HP Sales and Service Offices

3-52

4 Front and Rear Panel

This chapter contains descriptions of the keys and connectors and other hardware on the front and rear panel s. It also descr ibes which info rmation is disp layed in the various parts of the display.

4-1

Front and Rear Panel

Front Panel Overview

1. EXT 1 INPUT Connector

This female BNC input connector acce pts a 1 Vpeak signa l for FM, For all these modulations, When AC-coupled inputs are selected for FM, will light if the peak input vol ta ge di ffers from 1.0 V by more than 3%. The input impedance is 50 your signal generator with Option 1EM, this input is relocated to a rear panel, female BNC connector.

2. EXT 2 INPUT Connector

This female BNC input connector acce pts a 1 Vpeak signa l for FM, pulse modulation. With FM, deviation or depth. With pulse modulation, +1 V is on and 0 V is off. When AC-coupled inputs are selected for FM, light if the peak input voltage differs from 1.0 V by more than 3%. The input impedance is 50 your signal generator with Option 1EM, this input is relocated to a rear panel, female BNC connector.

4-2

±1 Vpk produces the indicated deviation or depth.

Ω. The damage levels are 5 V

ΦM, or AM, ±1 Vpk produces the indicated

ΦM, or AM, HI /LO annuncia tors will

Ω. The damage levels are 5 V

ΦM, and AM.

ΦM, or AM, HI/LO annunciators

and 10 Vpk. If you configure

rms

ΦM, AM, and

and 10 Vpk. If you configure

rms

3. Help Key

Press this hardkey for a shor t textual description of the function of the f ron t panel hardkeys and softkeys. Press any other key and you will be returned to normal instrument operation.

4. Trigger Key

Press this hardkey to trigger a step or list sweep.

5. LF OUTPUT Connector

This female BNC connector is the output connector for modulation signals generated by the LF source funct io n gene rator. You can also outp ut si gna ls where the frequency and shape are set by the internal source as it is being used by a modulation. For pulse modulation, however, the internal source is a sinewave which is later squared by the modulator to generate the pulse squarewave. This output is capable of drivi ng 3.5Vpk into a 50 generator with Option 1EM, this input is relocated to a rear panel, female BNC connector.

Front and Rear Panel

Front Panel Overview

Ω load. If you configure your signal

6. Mod On/Off Key

This hardkey toggles all modulation signals on and off. Although you can set up and enable various modulation states, the RF carrier is not modulated until

Mod On/Off is set to On. An annunciator is always turned on in the display to

indicate whether modulation is turned on or off.

7. RF OUTPUT Connector

This female Type-N connector is the output connector for RF signals. The source impedance is 50 > 2 GHz maximum. The reverse power protection circuit will trip, however, at nominally 1 watt. If you configure your signal generator with Option 1EM, this output is relocated to a rear panel female Type-N connector.

8. RF On/Off Key

This hardkey toggles the RF signal on and off at the RF OUTPUT connector. An annunciator is alwa ys tur n ed on in the display to indicate whet her RF is turned on or off.

Ω. The damage levels are 50 Vdc, 50 W at ≤ 2 GHz, and 25 W at

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9. Numeric Keypad

10. Arrow Keys

Front and Rear Panel

Front Panel Overview

The numeric keypad consists of the digit keys (0 through 9), a decimal point key, and a backspace key, . The backspace key has dual functions for both backspacing and for chang ing the sign of a value to posi tive or negativ e. Use these keys at any time when the active function requires a value input.

The up and down arrow keys increase or decrease a numeric value. You can also use these keys to scroll through displayed lists to select items. The left and right arrow keys choose the highlighted digit in the active function display, which is modified by the up and down arrow keys. You can also use these keys in a list to select items in a row.

11. Return Key

Return key moves you from your current softkey menu to the softkey menu

The that precedes it. It wi ll back up th rough the menus of the curr ent hardke y until you reach the first menu of that key.

12. Display Contrast Decrease Key

Pressing the decrease contrast key and holding it down causes the display background to gradually darken in comparison to the text on the display.

13. Display Contrast Increase Ke y

Pressing the increase contrast key and holding it down causes the display background to gradually brighten in comparison to the text on the display.

14. Local Key

Press this key to return th e signal gene rator to local (front panel) control from remote operation.

15. Preset Key

Press this key to set the signal gener ator to a known state (either the factory-defined state or a user-defined state).

16. Standby LED

This yellow LED lights when the instrument is in standby condition. In standby, the power switch is off but the instrument is s till connec ted to t he ma ins ci rcu it by way of the p ower cord.

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17. Line Power LED

18. Power Switch

19. Display

20. Hold Key

Front and Rear Panel

Front Panel Overview

This green LED lights when power is cycled on to the signal generator.

Pressing this hardk ey turns power to t he signal gener ator either o n (green LED on) or to standby (yellow LED on).

The LCD display provides information on the current instrument state such as modulation status, frequency and amplitude settings, status indicators, and error messages. Softkey labels corresponding to their adjacent keys are located on the right-hand side of the display.

21. Softkeys

22. Knob

23. Amplitude Key

24. Frequency Key

Press this hardkey to de-activate the current active function and blank the softkey menu. Once

Hold is pr essed, the f ront panel kno b, the ar row keys, and t he numeric

keypad have no effect. To return to normal operation, press any front panel hardkey.

Press a softkey to activate the function indicated by the label on the display directly to the left of the softkey.

The knob increases or decrea ses a numeri c valu e. Any of the values t hat can be set through the numeric keypad or the step keys can also be set using the knob.

Press this hardkey to activate the power level amplitude function so that you can change the amplitude of the RF output.

Press this hardkey to activate the frequency function so that you can change the frequency of the RF output.

25. Save Key

This hardkey lets you save up to 100 different instrument states in a combination of 100 memory registers and 10 register sequences.

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Agilent ESG-2000A Users Guide

Specifications and Main Features

Frequently Asked Questions

User Manual