SSG - DBM Corp
Contents
1. Synthesized Signal Generator Local Operation Section Local Operation The SSG is a laboratory instrument designed to generate a synthesized CW signal with good spectral purity and variable amplitude The instrument is controllable from the front panel or remotely via IEEE 488 LAN and RS 232 The user can set the frequency and amplitude and also turn the output signal off The resolution step size is selected by positioning the cursor at the appropriate digit and then turning the front panel knob Alternatively a step size value can be set independently for the frequency and for amplitude and the knob will then change the value by that step size The IEEE 488 address and LAN IP address are also selectable from the front panel Operating States Power up and Preset Upon power up the instrument is set to the last frequency and amplitude before power was removed and the RF output is turned off The display will momentarily 3 5 sec indicate the model number and the version of the installed firmware Holding the Frequency key for 2 seconds will set the frequency to 50 MHz SSG Operations Manual Era Synthesized Signal Generator Front Panel Key Operation This section describes how to edit the frequency and amplitude in local mode Press either Frequency or Amplitude to select the desired parameter The display pointer moves to the selected parameter and the blinking cursor is positioned at the most recently2. Synthesized Signal Generator alae Confidentially SYN T H E S IZ E D S l G N AL This manual contains proprietary information of dBm LLC It is provided under confidential custody for the sole purpose of specification installation maintenance and operation of dBm test system instruments and equipment and may not be used or disclosed to any person for any other purpose whatsoever No portion of G E N E R ATO R this manual or the information it contains may be reproduced used or disclosed to individuals not having a S S G need to know consistent with its intended purpose without the written permission of dBm LLC Copyright This manual is copyright by dBm LLC and all rights are reserved No portion of this document may be repro duced copied transmitted transcribed stored is a retrieval system or translated in any form or by any means electronic mechnical magnetic optical chemical manual or otherwise without written permission of dBm LLC Disclaimer dBm LLC makes no representation or warranties with respect to the contents hereof and specifically disclaims any implied warranties of merchantability for any particular purpose dBm LLC reserves the right to revise this publication and to make changes from time to time in the content thereof without obligation of dBm LLC to notify any person of such revision or change 2008 dBm LLC All rights reserved All trademarks are the property of their respective holders MAN2001162
3. RST Reset Command The Reset command performs a SSG reset It does not affect the state of the IEEE 488 interface nor any Event Enable Register setting including the Standard Event Status Enable Register settings Synthesized Signal Generator RCL The recall function is used to configure the SSG in one of ten user defined states The recall registers are labeled 0 9 Registers for which the user has not written to will contain default settings The recall function does not disturb the state of the IEEE 488 interface or any Event Enable Register settings SAV The save function is used to store the current SSG configuration in one of ten user defined states The save registers are labeled 0 9 IDN Identification Query The Identification query allows the SSG to identify itself over the system interface The response is composed of four fields Field 1 Manufacturer Field 2 Model Field 3 Serial number Field 4 Firmware version Manufacturer dBm LLC Model SSG lt min frequency gt lt max frequency gt Serial number 12 ASCII characters Firmware level Version number An example response to the IDN query is dBm LLC SSG 10 4000 0306 007 00001 1 18 TST Self Test Query The self test query causes the ASCII character 0 zero to be placed in the Output Queue upon successful completion of a self test OPC Operation Complete Command The Operation Complete command causes the SSG to set the Opera
4. Range 10 to 4000 MHz Resolution 10 Hz below 2000 MHz 20 Hz above 2000 MHz Amplitude The current value for output power Units dBm Range 30 0 to 10 0 dBm Resolution 0 1 dB Output status The current state of the output signal Units n a Default RF OFF Range RF ON or RF OFF Instrument Status Indicators Remote Mode illuminates when in GPIB LAN or RS 232 control MAX illuminates when an over range value is attempted MIN illuminates when an under range value is attempted RF ON illuminates when the Rf output is on RF OFF illuminates when the RF output is off STEP ON illuminates when step mode is active STEP OFF illuminates when step mode is off SET STEP SIZE illuminates in the Step Size menu Remote Address Setup Menu Enter the Remote Address Setup menu by pressing and holding the Rem Local key for 3 seconds Press the Rem Local key again to save values and exit the setup display when finished The Remote Address Setup menu display will show the following Line 1 Configure GPIB xx range is 1 31 Line 2 Configure Ethernet Ea SSG Operations Manual da RE aan Synthesized Signal Generator Setting the GPIB Address With the Remote Address Setup menu visible use the rotary knob to modify the GPIB address When finished press the Rem Local to return to the main menu or press the key to invoke the Ethernet submenu Setting the Ethernet Address After accessing the Remote Addre
5. Configure window In the Client configure window enter the IP address es to match the SSG IP address es In the Client main window set the IP address to match the SSG IP address Press Connect When the link is established the same button will indicate Disconnect and the status window labeled Remote Status will also indicate Connected The client will poll the SSG once the connection is established and display the model number serial number and firmware version at the top of the window The Query button forces the same function to occur SSG Operations Manual Ba Synthesized Signal Generator Controlling the SSG with the Client Upon startup the client will command the SSG to the displayed frequency and amplitude values These values can be modified by typing into the text box by clicking an end arrow on the slider bar or by clicking inside of the slider bar When typing into the text box the new value is accepted when the cursor is moved to another field or by pressing Enter on the PC keyboard The resolution of the slider end arrows is controlled by the Step Size text box For example if the current frequency is set to 12 345 MHz and the step size value is 2 MHz then clicking once on the right end arrow will change the frequency to 14 345 MHz Clicking inside of the slider bar provides a coarse step The frequency change that occurs when clicking inside of the slider bar is controlled by the program and does not c
6. R This icon indicates a warning Failure to follow the instructions given installation procedures and lists error messages here may result in personal injury or damage to the equipment WARNING Appendix B Description and Specifications gives an overview of the SSG technical design and provides technical specifications and verification testing ae ae 7 8 This icon indicates a tip Text marked this way may be an optional procedure for accomplishing a task or a time saving procedure for advanced or familiar users Appendix C Maintenance and Warranty describes the SSG warranty and directs how to return the SSG for repair or calibration Ea SSG Operations Manual dEiBm Synthesized Signal Generator Synthesized Signal Generator Contacting dEBm We encourage you to contact us if you want more information or have any questions or concerns about this or any other dBm product or manual Use any of the following methods Mail dBm 32A Spruce Street Oakland NJ 07436 Telephone 201 677 0008 Fax 201 677 9444 E mail Technical Support Info dbmcorp com www http www dbmcorp com SSG Operations Manual EA ea SSG Operations Manual dd RE am Synthesized Signal Generator Introduction Section Introduction This section introduces you to the Synthesized Signal Generator instrument and describes the features and controls Topics include Front and rear views a Power and cable con
7. dEBm and provided the preventative maintenance procedures are followed Repairs necessitated by misuse of the product are not covered by this warranty No other warranties are expressed or implied including but not limited to implied warranties of merchantability and fitness for a particular purpose dEBm is not liable for consequential damages Please refer to the previous section for contact information and procedures to return the instrument to Baan ES SSG Operations Manual
8. instructions and SSG vertification tests Topic includes System Installation Performance verification SSG Operations Manual i Synthesized Signal Generator Installation Unpacking the SSG Remove the SSG materials from the shipping containers Save the containers for future use The standard SSG shipment includes LS aa Synthesized Signal Generator Initial Inspection Inspect the shipping container s for damage If container is damaged retain it until contents of the shipment have been vertified against the packing list and instruments have been inspected for mechanical and electrical operation If the SSG appears to have been damaged during shipping do not apply power to the unit Contact l Bua immediately WARNING Applying power 1 Place the SSG on the intended workbench and connect the AC power cord to the receptable on the rear of the unit 2 Press the Line on off switch on the rear panel The front panel display should illuminate BA SSG Operations Manual da RE aan Synthesized Signal Generator System verification The following section provides the procedure to verify that the SSG is operating correctly 1 Attach a main AC power cord and set the rear panel main power switch to the up position The front panel display will illuminate 2 Press the Frequency button and hold for 3 seconds to reset the frequency to 50 MHz and the amplitude to 10 dBm 3 Set and meas
9. rates up to approximately 5 MBPS Programming control of the SSG can be implemented by two means 1 Using the SSGControl Application provided by dBm with the instrument or 2 by creating an application such as a test script The SSGControl Application provides a simple user interface to control the SSG Installing the SSG Remote Client on a PC The SSGControl Application can be copied from the provided CD to a directory on a PC Create a directory for example c SSG Client and copy the following files into the directory SSGControl exe Connecting to the SSG To establish a connection from the PC to the SSG connect the two devices to a local area network or connect them directly using an ethernet crossover cable Description of the SSG Remote Client The SSGControl provides a graphical interface to control the SSG from a PC via a LAN connection The client can address multiple SSG instruments by changing the IP address in the control window ea SSG Operations Manual Synthesized Signal Generator Fe dBm SSG Control 1 10 x J MODELH N A SERIALH N A REVE N A diEm l mE SYNTHESIZED SIGNAL GENERATOR Configure Disconnected Reset coa0009 OMHz 30dBm p o 10 dBm FT z Step Size oo e Step Size 00 Control IP Address Remote Status Amplitude Ae Gotout wtf Ae Gotsut Gn SSG Control Window Configure the Client Select the Configure button to invoke the
10. selected digit for that parameter Use the and keys to move the cursor left or right with each key press of the arrow keys The cursor does not move beyond the field of the currently selected parameter Rotate the front panel knob to modify the value Clockwise rotation increases the parameter and counterclockwise rotation decreases the parameter The parameter value will continue to increase or decrease by the amount of the selected resolution until it reaches the maximum or minimum limit of the parameter Rem Local Key The Rem Local key is used to return the instrument to local operation from the remote mode Press and hold the Rem Local key for 3 seconds to invoke the Remote Address Setup menu where the GPIB and LAN addresses are viewed and set Press Rem Local again to save any new values and return to the main menu Frequency Key The Frequency key is used to select the frequency field Holding the Frequency key for 3 seconds causes the frequency to preset to 50 MHz Amplitude Key The Amplitude key is used to select the amplitude field Arrow keys The lt moves the cursor to the left The moves the cursor to the right In the Remote Address Setup Menu the arrow key moves the selected field from the GPIB address to the LAN address The arrow 14 SSG Operations Manual Synthesized Signal Generator keys are also used to move the cursor in the IP address and the submask address RF On Off ke
11. ALLING THE SSG REMOTE CLIENT ON A PC 26 SSG Operations Manual Heol Een SSG Operations Manual Synthesized Signal Generator Conventions Used in This Manual Preface Text Conventions This manual uses the following text conventions This manual contains operation instructions and reference information for the dBm SSG The SSG generates a CW sine wave output with Italic text indicates new terms directories and or filenames variable amplitude Bold Text indicates SSG selections or key presses Monospaced text indicates SSG commands entered through This manual is prepared as a reference source for engineers and remote mode technicians to use the SSG as part of their Development and or a Bold monospaced text indicates SSG responses through Production test effort remote mode The SSG operations manual is divided into the following sections Symbols Section 1 Introduction shows the SSG equipment control and connector locations and describes connector functions The following symbols appear in the manual Section 2 Local Operation describes how to operate the SSG from the front panel Ze f f See also This symbol and its see also text is placed next to subject matter in the manual to tell you where to find more information Section 3 Remote Operation shows how to operate the SSG through the Ethernet IEEE 488 2 and RS 232 connection Appendix A Installation and Troubleshooting describes
12. Rev 1 41 Printed in U S A jenuvy suopendo RF Test Equipment for Wireless Communications Ea SSG Operations Manual dhe aap Synthesized Signal Generator Synthesized Signal Generator PREFACE 5 CONNECTING TO THE SSG 26 INTRODUCTION DESCRIPTION OF THE SSG REMOTE CLIENT 26 CONFIGURE THE CLIENT 27 GENERAL INFORMATION 10 CONTROLLING THE SSG WITH THE CLIENT 28 FRONT PANEL VIEW 10 COMMANDS 29 REAR PANEL CONNECTIONS 11 RS 232 SERIAL INTERFACE OPERATION OVERVIEW 30 START AND SHUTDOWN PROCEDURES 12 STARTING THE SSG 12 INSTALLATION AND TROUBLESHOOTING 31 SHUTTING DOWN THE SSG 12 se SD INSTALLATION 32 LOCAL OPERATION UNP ACKING THE SSG 32 INITIAL INSPECTION 32 OPERATING STATES 13 APPLYING POWER 32 POWER UP AND PRESET 13 SYSTEM VERIFICATION 33 FRONT PANEL KEY OPERATION 14 SPECIFICATIONS 34 REM LOCAL KEY 14 FREQUENCY KEY a MAINTENANCE AND WARRANTY 36 AMPLITUDE KEY 14 eee ARROW KEYS 14 RF ON OFF KEY 15 MAINTENANCE INFORMATION 37 STEP ON OFF KEY 15 ADJUSTMENTS AND CALIBRATION 37 SET STEP KEY 15 REPAIR 37 DISPLAYED PARAMETER FORMATS 16 EQUIPMENT RETURNS 37 MAIN DISPLAY 16 WARRANTY INFORMATION 38 REMOTE ADDRESS SETUP MENU 16 SETTING THE GPIB ADDRESS 17 SETTING THE ETHERNET ADDRESS 17 REMOTE OPERATION 18 GPIB COMMAND SYNTAX 19 TERMINATOR CODES 19 CONCATENATION TERMINATOR 19 SPACES 19 CASE INSENSITIVITY 19 GPIB COMMANDS 20 IEEE 488 2 STATUS REPORTING AND QUERIES 21 MANDATORY IEEE 488 2 COMMANDS 21 LAN OPERATION OVERVIEW 26 INST
13. ablished on either LAN or GPIB the other interface cannot be used until the instrument is cycled through local mode The RS 232 interface is always active The instrument returns to local mode upon pressing the Rem Local key or upon power up When in remote REMOTE MODE is shown in the lower left of the display Era SSG Operations Manual dEBm Synthesized Signal Generator GPIB Command Syntax Terminator Codes When sending data to the SSG any of the following terminator codes are valid e Send EOI at end of Write e Terminate read on EOS e Set EOI w EOS on Write e 8 bit EOS compare Concatenation Terminator Multiple commands on a single line are separated by the semi colon concatenation terminator Example FREQ 1000 POW 12 5 Spaces The ASCII space character may appear after any command or after the concatenation terminator Case Insensitivity Commands and queries may be sent in upper and or lower case characters SSG Operations Manual 19 Synthesized Signal Generator GPIB Commands When addressed to listen the SSG responds to the following commands Function Listener Codes Set Frequency FREQ x x is frequency value Set Output Power POW x RF output on off OUTP on or off Identification Query IDN Reset Command RST Self Test Query return 0 on success TST Operation Complete Command OPC Operation Complete Query OPC Wa
14. e SRE Register bits The SRE is involved in the setting and clearing of the Master Summary Status MSS bit of the Status Byte Register The MSS bit indicates that the SSG has at least one reason for requesting 24 SSG Operations Manual Synthesized Signal Generator service The MSS bit of the Status Byte Register is the inclusive OR of the bitwise combination excluding bit 6 of the Status Byte SB Register and the SRE Register MSS is defined as SB Register bit 0 AND SRE Register bit 0 SB res bit 1 AND SRE Register bit 1 SB eee bit 2 AND SRE Register bit 2 SB uae bit 3 AND SRE Register bit 3 SB ae bit 4 AND SRE Register bit 4 SB je bit 5 AND SRE Register bit 5 SB Boi bit 7 AND SRE Register bit 7 SRE Service Request Enable Query The Standard Event Status Enable query lets the programmer determine the contents of the Service Request Enable Enable Register This register is set to 16 decimal at power on STB Read Status Byte Query The Read Status Byte query lets the programmer read the status byte Bit Description 0 3 1 A 2 z 3 z 4 MAV 5 ESB 6 MSS F x Status Byte Register Bit Assignments SSG Operations Manual Ea Synthesized Signal Generator LAN Operation Overview The SSG can be controlled remotely using its LAN interface The instrument can be connected to any IEEE 802 network It uses TCP IP and achieves transfer
15. ine 3 dBm to 6 dBm Environmental Operating Temperature 0 C to 35 C Shock and Vibration MIL PRF 28800F Type III Class 4 EMI MIL STD 461B RE02 Part 2 and CISPR II SSG Operations Manual ka Control and interface Local interface Front panel keypad amp display Remote interface IEEE 488 2 LAN RS 232 Primary power Voltage 90 264 VAC autoranging Frequency 48 66 Hz Consumption 40 VA maximum Fuse 1A slow blow Physical Ambient operating temp 0 to 35 C Dimensions 10 W x 2 75 H x 10 D Figure 8 SSG Specifications Synthesized Signal Generator Maintenance and Warranty Section Maintenance and Warranty This section describes the SSG maintenance procedures and warranty information Maintenance Information Warranty Information Ea SSG Operations Manual Synthesized Signal Generator Maintenance Information Adjustments and Calibration To maintain optimum measurement performance the SSG should be calibrated every year It is recommended that the SSG be returned to dEBm or to an authorized calibration facility For more information please contact our Customer Service Department at 201 677 0008 Repair The SSG should only be serviced by AHB service personnel or trained customer maintenance personnel using the Ban Service Manual for the SSG For instruments requi
16. it to Continue WAI Clear Status CLS Event Status Enable ESE Event Status Enable Query ESE Event Status Register Query ESR Service Request Enable Command SRE Service Request Enable Query SRE Read Status Byte STB Figure 4 GPIB Commands Query TOONE Default units command FREQ Frequency value MHz POW Output amplitude value dBm OUTP 1 or 0 1 indicates RF on none Figure 5 Other GPIB Query Commands Notes e Mandatory IEEE 488 2 commands begin with an Details about these commands can be found in IEFE Std 488 2 e X represents numeric values from 0 to 9 e Spaces within the command are ignored E SSG Operations Manual Synthesized Signal Generator IEEE 488 2 Status Reporting and Queries The SSG supports IEEE 488 2 status reporting Status is reported using an 8 bit Status Byte and an 8 bit Standard Event Status Register Status Register Bit Assignments Bit Description 0 not used 1 not used 2 not used 3 not used 4 MAV 5 ESB 6 MSS 7 not used Event Status Register Bit Assignments Bit Description 0 Operation Complete 1 Request Control 2 Query Error 3 Device Dependent Error 4 Execution Error 5 Command Error 6 User Request 7 Power On The Device Dependent Error bit is set when the signal or noise is out of range The Command Error bit is set when an unknown command or query is received Mandatory IEEE 488 2 Commands
17. nections Startup and shutdown procedures SSG Operations Manual ea Synthesized Signal Generator GENERAL INFORMATION Front panel view The SSG generates a CW RF output signal with variable amplitude Frequency is controlled through a rotary knob on the front panel The frequency increment size can be set by moving the cursor to the desired digit or by setting a step size using the STEP mode Amplitude is set and varied similarly WLO FREQUENCY AMPLITUDE GOCCOCL Figure 1 Instrument Front Panel View oS For custom SSG units consult additional documentation provided with the instrument Era SSG Operations Manual HEB an Synthesized Signal Generator Rear Panel Connections MANUFACTURED IN USA Em uc F m s PUSE 250v 3A SB RS 232 LAN GPIB Figure 2 Instrument Rear Panel View For custom SSG units consult additional documented provided with the instrument SSG Operations Manual Ea Synthesized Signal Generator Start and Shutdown Procedures Starting the SSG 1 Connect the power cord and press the Line on off switch on the rear panel The instrument will initialize and momentarily display the model number and firmware revision 2 The power on state will be local mode with the last frequency and amplitude values and the RF output will be off Shutting Down the SSG 1 Press the Line on off switch on the rear panel to off EEA SSG Operations Manual
18. orrespond the step size text box ie SSG Operations Manual Commands Synthesized Signal Generator The SSG LAN interface responds to the following ASCII command set which mimics the GPIB commands Function Set Frequency Set Output Power RF output on off Frequency Query Power Query RF Output State Query Reset Code FREQ XXXX XXXXXX Default units are MHz POW XX X Default units are dBm OUTP on off FREQ POW OUTP RST Synthesized Signal Generator RS 232 Serial Interface Operation Overview The RS 232 serial port is configured as follows Baud 9600 Parity none Data Bits 8 Stop Bit 1 Flow control none Connection to the RS 232 port is via a phono jack located on the rear panel CENTER SHIELD A TIP The SSG serial port responds to the following ASCII command set which mimics the GPIB commands Function Code Set Frequency FREQ XXXX XXXXXX Default units are MHz Set Output Power POW XX X Default units are dBm RF output on off OUTP on off Frequency Query FREQ Power Query POW RF Output State Query OUTP Reset RST SSG Operations Manual ea 30 SSG Operations Manual Installation and Troubleshooting Installation and troubleshooting Synthesized Signal Generator If your SSG unit does not appear to be performing as expected vertification tests can determine whether the unit is functioning properly This section describes installation
19. ring service either in or out of warranty contact dEBma Customer Service Department at 201 677 0008 for pricing and instructions before returning your instrument When you call be sure to have the following information available m Model number E Serial number m Full description of the failure condition Note Model and serial number can be found on the rear of the SSG unit next to the the AC outlet Equipment Returns All instruments returned to diEBam for repair must be shipped prepaid Instruments that are eligible for in warranty repair will be returned prepaid to the customer For all other situations the customer is responsible for all shipping charges An evaluation fee may be charged for processing units that are found to have no functional or performance defects For out of warranty instruments Bam will provide an estimate for the cost of repair Customer approval of the charges will be required before repairs can be made For units deemed to be beyond repair or in situations which the customer declines to authorize repair an evaluation charge may be assessed by NBumn SSG Operations Manual ea Synthesized Signal Generator Warranty Information All dEBmm products are warranted against defects in material and workmanship for a period of one year from the date of shipment dEBm will at its option repair or replace products that prove to be defective during the warranty period provided they are returned to
20. ss Setup menu press the gt key to invoke the Ethernet submenu for IP address and submask address setup The Ethernet address submenu appears as follows Line 1 IP 192 168 1 102 Line 2 SM 255 255 255 0 Use the and keys to move the cursor to the desired position The arrow keys will move the cursor within each address field When the cursor is at the end of either the IP address or the submask address pressing the arrow key again moves the cursor to the other address field Once the cursor is in the desired position use the front panel knob to modify the value at the cursor location The decimal points for the IP and submask address are fixed Upon exiting the setup menu using Rem Local key all values are stored Holding the Frequency key while in the Remote setup menu will return the instrument to the main menu and reset the frequency However any modifictaions to the GPIB and LAN address will not be saved A SSG Operations Manual EA Synthesized Signal Generator Remote Operation Section Remote Operation The SSG can be controlled remotely via any of three interfaces GPIB LAN and RS 232 All GPIB commands are compliant with IEEE 488 2 The instrument can function as a talker or a listener but not as a controller The LAN and RS 232 interfaces respond to the same commands as the GPIB The instrument switches to remote mode upon being addressed with a valid command Once communication is est
21. ter bit 2 ESR bit ee ESE Register bit 3 ESR bit eer ESE Register bit 4 ESR bit ae ESE Register bit 5 ESR bit cans ESE Register bit 6 ESR bit ee ESE Register bit 7 ESE Standard Event Status Enable Query SSG Operations Manual Ea The Standard Event Status Enable query lets the programmer determine the contents of the Standard Event Status Enable Register ESR Standard Event Status Register Query The Standard Event Status Register query lets the programmer determine the contents of the Standard Event Status Register The Standard Event Status Register is destructively read that is it is read and cleared with the ESR query Event Status Register Bit Assignments Bit Description 0 Operation Complete 1 Request Control 2 Query Error 3 Device Dependent Error 4 Execution Error 5 Command Error 6 User Request 7 Power On Bit assignments in parentheses are bits that have been assigned by the IEEE 488 2 standard but may not be currently used by the SSG Operation Complete Bit set upon execution of the OPC command Device Dependent Error Bit set when any of the following errors occur Frequency too high Frequency too low Output Power too high Output Power too low Command Error Bit set whenever an unknown command or query is received SRE Service Request Enable Command The Service Request Enable command sets the Service Request Enabl
22. tion Complete bit of the Standard Event Status Register when all operations are finished SSG Operations Manual en 99 SSG Operations Manual LL Ty Synthesized Signal Generator Synthesized Signal Generator OPC Operation Complete Query The Operation Complete query places an ASCII character 1 one into the SSG Output Queue when all operations are finished WAI Wait to Continue Command The Wait to Continue command has no functional affect on the SSG since the SSG implements all commands sequentially No commands are overlapped that is one command must finish before the next command is executed CLS Clear Status Command The Clear Status command clears status data structures The Clear Status command clears all bits in the Standard Event Status Register and its summary ESB bit in the Status Register It does not necessarily clear all bits in the Status Byte Register For example the MAV bit may not be cleared by the CLS command ESE Standard Event Status Enable Command The Standard Event Status Enable command sets the Standard Event Status Enable ESE Register bits The ESE is involved in the setting and clearing of the Event Summary Bit ESB of the Status Byte Register The ESB is the inclusive OR of the bitwise combination of the Standard Event Status Register ESR and the ESE Register ESB is defined as ESR bit 0 AND ESE Register bit 0 ESR bit Tan ESE Register bit 1 ESR bit oer ESE Regis
23. ure the frequency and amplitude at each of the following points 10 MHz 210 MHz 410 MHz 610 MHz 810 MHz 1000 MHz 1500 MHz 2000 MHz 2400 MHz 2750 MHz 3390 MHz The frequency error shall be less than 2 PPM and the amplitude error shall be less than 0 5 dB 4 Set the frequency to 1000 MHz Connect the output to a spectrum analyzer and verify the phase noise complies with the specification Synthesized Signal Generator Specifications Section Specifications Frequency Range 10 MHz 4000 MHz Frequency Resolution 10 Hz up to 1999 99999 MHz 20 Hz for 2000 4000 MHz Frequency Accuracy 2 PPM internal reference or per external reference SSG Operations Manual Ea Frequency update rate 2 ms via LAN or GPIB Settling time 2 msec typical 200 usec for steps less than 10 MHz lt 12 msec at band crossings 1 GHz 2 GHz Spectral Purity Phase Noise at 1 GHz 55 dBc 10 Hz 81 dBc 100 Hz 103dBc 1 kHz 107 dBc 10 kHz 108 dBc 100 kHz 128 dBc 1 MHz 34 SSG Operations Manual dim Synthesized Signal Generator Spurious lt 50 dBc Output Noise floor lt 145 dBm Hz 2nd Harmonic lt 15 dBc 3rd Harmonic lt 25 dBc Output Power Power Range 10 dBm to 30 dBm Power Resolution 0 1 dB Power Accuracy 0 5 dB 20dBm to 10 dBm 0 75 dB lt 20 dBm Impedance 50 ohms External Reference 10 MHz s
24. y The RF ON OFF key toggles between RF output on and RF output off RF ON or RF OFF is displayed STEP On Off key The STEP ON OFF key determines the step size that is used to increment or decrement the frequency and amplitude When step mode is off the parameter resolution is determined by the cursor position and the digit changes by a count of one When step mode is on the parameter changes by the step size amount and the cursor is not displayed The step size for frequency and amplitude are set independently SET STEP key Pressing SET STEP invokes the step size menu Pressing SET STEP again returns to the main menu A frequency step size and an amplitude step size are displayed The lt and keys are used to move the cursor position The Frequency key and the Amplitude key are used to move the cursor between the frequency field and the amplitude field Once the desired cursor position is set the front panel knob is used to modify the step size value With step mode active the parameter will increment or decrement by the selected step size SSG Operations Manual Ea Synthesized Signal Generator Displayed Parameter Formats Main display There are two parameters displayed in the main menu frequency and amplitude In addition there is a Step mode on off indicator and an RF output on off indicator The display is updated each time a value is changed Frequency The current value for center frequency Units MHz
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