User`s Manual
Contents
1. esses e shes 32 Power Sweep Submenu nnen ee sns 32 List Sweep SUBMENU nerede ortie QUERER p C ADI hervatte dndiek 34 Modulation Submenu eneen enen he rris 35 Pulse Mod Submenu 5 2 error cern a par EERREA CHR TER Er C ua pd vrl qu Ed ne DER UAR vane neten 36 Amplitude Mod Submenu eenen ennen ev nennen EES 36 Frequency Mod Submenu ennen eeen denen EERE EEE nnn 37 Reference Submenu serersrsnrnnmm steenen NERPdUR d necNdnEPrCETEUENSUUU EET E DNE 37 Trigger Submenu ieee edt eX SR URSI E Cop U REDE PERS b RN NEUE ENTER SN UN 38 LF OUTPUT SUDMERW zeeer teeta brekers heee 39 LAN Configuration Submenu anneer eneen eneen 39 Display Settings Submenu nonnen eneen ennen enen eneen 40 Default Settings Submenu vennen eeen veenman eneen eeens 41 o Programming th Unit S s oe eee ee eee ee as we da AO ipi RUE dade eee 42 Usma Sockets 2 M M a 42 Using and Configuring VXI 11 ssseusessssseer nmn 43 UC SCPE 43 USING TeInSE LAN mennen weende eenden 44 6 Battery Operation B3 Option nennen eeen eneeennnnnnnnnnn nnen 45 7 Extended Power Range PE PE2 Options ooo eneen eenen vennen 48 8 Maintenance and Warranty Information oo 49 Adjustments and Calibration annees eenen eene nns 49 REDA ENERO renesse nonr nende deinde nde 49 SteV antenne T TU 49 Warranty Information ccc ccccc cece eeee2. m to select the active digit The resolution step size is selected by positioning the cursor at the appropriate digit and then turning the front panel rotary knob Main Menu Display The Main Menu Display is invoked my pressing the menu key The main menu contains eleven submenus as shown below 30 Figure 9 Overview of the submenus available on the display Use the up and down arrow keys p n or the rotary knob on the front panel to scroll the main menu The arrow on the left displays the selected position To enter a submenu move the arrow displayed at the left of the menu points to the desired menu position and press the menu key 31 Frequency Sweep Submenu After accessing the Frequency Sweep menu first of three displays allows to enter the start and stop frequency by using the o m keys to select the digits and using the rotary knob to increase and decrease their values Use thep n arrow to move between the several displays that contain settable sweep parameters On the second display the number of points and the on and off time can be entered On the third screen select the sweep mode between LI Near LOGarithmic and RANDom Also select the repetition mode between I NFinite and 1 single repetition Start the sweep by pressing the RF On Off button The submenus can always been exited without starting the sweep by pressing the menu key Number of Points per Sweep On dwell time Off time Swee
3. Device Name INSTRO Serial Firmware Sue Figure 4 Network Configuration Submenu Perform Firmware Upgrade A firmware upgrade of the unit can be done directly via the GUI Make sure you are connected to the right device and have the correct binary ready Then go to Controller Update Firmware and select the appropriate binary that you have received from BNC or downloaded from the BNC website The update will take a few seconds and after completion the device will reboot Reconnect to the device and continue using the device Store and Revoke Instrument States Ten different memory states are available to store the Frequency Power pairs By clicking on the Memory Settings button the currently saved memory settings are displayed and can be modified as shown in Figure 5 To modify or enter a state click on the appropriate line and enter Frequency in Hz and Power in dBm Memory lis used as default state when the unit is powered up The 10 memory states can be accessed via the RF on off button on the front panel Press the RF on off button for about three seconds until the memory setting is displayed on the screen Release the button and browse through the ten memory states by pressing the RF on off button quickly To select the currently displayed memory state press the RF on off button and hold it for 12 another three seconds The instrument settings are updated from memory and the display now shows
4. Units Hz Range 9 000 to 6 100 000 000 Hz 835 6 resp 20 000 000 000 Hz 845 Resolution O 1 Hz Amplitude The current value for output power Units dBm Range 70 0 to 25 0 dBm option PE PE2 150 0 to 25 0 dBm Resolution O 1 dB Phase lock External reference disabled not locked or locked to pre set value and enabled modulation settings Range 1 to 220 MHz Connectivity Status indication The current LAN IP address of the instrument or USB TMC connection identifier Rear Panel Connections 1 RJ 45 host connector Used for connecting with a controller such as a PC or Labtop 2 USB Device Used for connecting with a controller such as a PC or Labtop Communication via USB TMC protocol 3 USB Host Used for connecting USB devices such as Memory sticks or USB TMC power meters 4 FM PM MOD IN connector This BNC input connector accepts a 0 to 2 V peak signal for FM modulation The damage level is 4 Vrms 5 REF IN connector Female BNC connector accepts a TTL or 5 to 15 dBm sine signal from an external reference oscillator that is within 1 ppm of the programmed reference frequency The nominal input impedance is 50 ohm 6 TRIG IN connector Female BNC connector accepts a TTL signal from an external trigger source The input impedance is 1Mohm 7 AM PULSE MOD IN connector This BNC input connector accepts TTL signal for pulse modulation respectively analog voltage for AM The damage level is 5 Vrms
5. 6 extended power range 100 to 11 dBm PE for 845 extended power range 90 to 13 dBm PE2 for 835 6 extended power range 130 to 13 dBm PE2 for 845 extended power range 120 to 13 dBm RM 19 rack mount kit Front Panel Overview The front panel contains a status display a RF output female N type connector and a RF on off key Figure 1 The LCD screen shows information on the current function Information includes status indicators frequency and amplitude settings current connectivity status and error messages Figure 1 Front Panel View 835 3 RF On Off button The ON OFF key toggles between RF output on and RF output off The green light is indicating whether the RF output is enabled light on or not RF 50 connector This female N type connector 835 6 respectively female SMA connector 845 provides the output for generator signals The impedance is 50 ohm The reverse power damage level is 30 dBm maximum The maximum allowed DC level is 10 V Displayed Parameter Formats Main LCD display There are two parameters displayed in the main menu frequency in Hz 1 line and RF amplitude in dBm 2 line On the 3 line the lock status to an external reference source or enabled modulation format is displayed The 4 line provides remote connectivity status of the controlled source The display is updated each time a value is changed Frequency The current value for center frequency
6. 8 REF OUT connector Female BNC connector is for an output of the internal 10 MHz reference frequency which has a nominal output level greater than 0 dBm and an output impedance of 50 ohm 9 FUNCT OUT connector Female BNC connector is used as a multiple purpose output It can be programmed as trigger output as video output during pulse modulation and as output for the low frequency function generator 10 Power switch The power switch disconnects the signal generator from the DC input completely including the internal high stability reference After switching on this switch the signal generator enters into standby with the OCXO warming up and RF out switched off The red power LED option HC only on the front panel is turned on 11 DC IN power receptacle The power receptacle accepts a two pin plug from the external 6 V DC power adapter 2 Getting Started System Requirements To ensure that your signal generator operates correctly with the graphical user interface you must have a computer with at least the minimum system requirements to run one of the supported operating systems Operating system Windows 2000 SP4 XP SP2 Vista or Windows 7 Ethernet Port 10 100 1000M Ethernet Unpacking the unit Remove the materials from the shipping containers Save the containers for future use The standard package includes 1 Synthesized Signal Generator 1 Ethernet Cable 1 Universal DC power adapter 1 Software amp Manual CD
7. A A A A LF Comet PPC 1093 Y IYI Y Y Py Vvily Amplitude A A A A 1 e o o ve Y YIII IY Shape Sine C Triangle C Square 5 Vpp P Connection established to 192 168 1 46 via LAN Figure 7 LF OUT tab 27 Combined Modulation The table below shows what modulation types can be active simultaneously All modulation can be combined with frequency and power sweeps For FM PM some timing restrictions apply Check programmer s manual for further details Table 1 Possible combinations of internal and external modulation and the internal LF generator output m INT EXT INT INT FM P M YES YES INTERNA YES YES YES YES AM INTERNA YES YES YES PULSE INTERNA LF Generator 28 4 Local Operation HC Option With the HC option the instrument is controllable directly from the front panel Moreover simultaneous control via front panel and GUI is possible The HC option adds keys and a rotary knob to the front panel Figure 8 shows the front panel view with HC option RF 50 Q RF on off R lt O Figure 8 HC Front Panel View gt MENU a LI RF On Off button The ON OFF key toggles between RF output on and RF output off The green light is indicating whether the RF output is enabled light on or not RF 50 connector This female N type connector provides the output for RF Signals The impedance is 50 ohm The damage l
8. Initial Inspection Inspect the shipping container for damage If container is damaged retain it until contents of the shipment have been verified against the packing list and instruments have been inspected for mechanical and electrical operation Starting the unit This section describes installation instructions and verification tests Applying Power 1 Place the unit on the intended workbench and connect the appropriate DC power supply to the receptacle on the rear of the unit Make sure you use the included DC power supply The unit requires 6 V DC at 3 A maximum Using other supplies may lead to malfunction and damage 2 Press the Line on off switch on the rear panel The front panel display will illuminate The instrument will initialize and momentarily display the model number firmware revision and product serial number The display will then switch to the factory default display setting showing preset frequency 100 MHz and power 0 0 dBm phase lock status internal reference and instrument connectivity status IP or USB identifier Connecting to LAN Connect the unit to your local area network LAN or directly to your PC Labtop using the Ethernet cable By default the instrument is configured to accept its dynamic IP number from the DHCP server of your network If configured properly your network router will assign a dynamic IP number to the instrument which automatically will be displayed on the screen Your instru
9. LAN and an IP address must be assigned to the signal generator either manually or by using DHCP client service Your system administrator can tell you which method to use Most current LAN networks use DHCP DHCP Configuration If the DHCP server uses dynamic DNS to link the hostname with the assigned IP address the hostname may be used in place of the IP address Otherwise the hostname is not usable Using Sockets LAN Sockets LAN is a method used to communicate with the signal generator over the LAN interface using the Transmission Control Protocol Internet Protocol TCP IP A socket is a fundamental technology used for computer networking and allows applications to communicate using standard mechanisms built into network hardware and operating systems The method accesses a port on the signal generator from which bidirectional communication with a network computer can be established Sockets LAN can be described as an internet address that combines I nternet Protocol IP with a device port number and represents a single connection between two pieces of software The socket can be accessed using code libraries packaged with the computer operating system Two common versions of socket libraries are the Berkeley Sockets Library for UNI X systems and Winsock for Microsoft operating systems 42 Your signal generator implements a sockets Applications Programming Interface API that is compatible with Berkeley socket for UNIX system
10. complete list TRIG TYPE NORM Repeat INIT CONT ON Execute single entry TRIG TYPE POIN Gated TRIG TYPE GATE Trigger Source Olf IMMediate Useevey fi 1 255 event C RF on off pushbutton KEY delay tiggerby 0 us C LAN Trigger BUS Trigger im C Extemal Trigger EXT emal P Connection established to 192 168 1 46 via LAN Figure 6 TRIGGER tab 26 LF OUT Control The rear panel output FUNCT OUT can be programmed using the LF OUT tab Figure 7 The FUNCT OUT output can be used as x Video output of the internal pulse modulation signal x Trigger output X Output of the low frequency generator In the GUI select which output to be used and enable it by pressing the ON OFF button The low frequency generator can output sine wave triangle or a square wave The frequency can be set from 1 Hz to 5 MHz The amplitude of the sine wave and triangle can be set for the sine wave and the triangle If square wave is selected the output is not affected by the amplitude settings and gives constant 5 Volts peak peak amplitude The output impedance for sine and triangle wave output is 50 ohms for square wave trigger and pulse modulation video it is high impedance CMOS and TTL logic compatible File Controller View Info Q I 5 a zc CONTROL CW SWEEP MODULATION REFERENCE TRIGGER LF OUT LF Output LF Generator 7 C PULM Video Out Frequency TRIG Out A A A
11. made For units deemed to be beyond repair or in situations where the customer declines to authorize repair an evaluation charge may be assessed by Berkeley Nucleonics 50 BNC Company Contact Information 51 Berkeley Nucleonics Corp 2955 Kerner Blvd San Rafael CA 94901 Tel 415 453 9955 Fax 415 453 9956 info berkeleynucleonics com www berkeleynucleonics com About the Company Berkeley Nucleonics Corporation is a leading manufacturer of precision electronic instrumentation for test measurement and nuclear research BNC has its corporate headquarters in San Rafael California with several additional manufacturing facilities and sales offices located throughout the United States
12. the CW parameters RENEE Frequency H 2200000000 0000 Frequency 2200000000 0000 Power 0 5 Figure 5 Memory Settings Submenu In option HC instruments all settings are individually controlled the RF on off button does not provide this function Using Toolbars 34 I n this Software Version there are two Toolbars available Standard toolbar Close the Application Connect 13 Disconnect Save to Memory Network Configuration Reset System Restart Controller Rescan devices Connect Disconnect Network Configuration device selection Basic CW Operation The unit is a laboratory instrument designed to generate a synthesized CW signal with good spectral purity and variable amplitude To seta desired frequency relative phase and amplitude click to the CW tab Figure 6 The desired frequency phase and power can be set by clicking on the up and down arrows above and below each digit The frequency is settable in steps of 0 001 Hz the phase is settable in steps of 0 1 deg and the power in steps of 0 1 dB The RF ON OFF button turns the RF power on and off The green LED in the RF ON button indicates that the RF output is enabled The Save to Memory button allows you to save the current frequency power pair to be stored in one of the ten internal memory states 14 OUMA a CONTROL CW SWEEP MODULATION REFERENCE TRIGGER LF OUT Frequency GHz MHz KHz Hz mHz A A A A
13. the off time can be also be O no off time When auto is selected the off time is automatically adjusted such that during switching transients the output is disabled and the sum of dwell and off time are at least 1 0 ms Under repetition mode you can select how many times the sweep should be executed by entering 1 to N times or select infinite Selecting Rand will sweep the frequencies in a random manner until terminated by user In all cases the frequency returns to the CW frequency as soon as the sweep is terminated Start and stop the sweep by pressing the ON OFF button The switching transient between frequency steps depends on the step size and if internal bands of the synthesizer are crossed Typical switching transients are lt 10 lt s for a lt 100 MHz step no band crossing and lt 50 lt s for arbitrary steps at output frequencies gt 143 MHz Transients of 100 lt s can be noticed for arbitrary steps at output frequencies lt 143 MHz Transients of 400 lt s occur only when switching from above 400 MHz to a frequency below 400 MHz Frequency Linear Sweep Sweeps linearly from start to stop frequency in constant steps Frequency step size is f stop f start number of points If start lt stop then negative frequency steps are performed Frequency Log Sweep Sweeps logarithmically from start to stop frequency in a given number of points per decade Frequency Random Sweep The output frequency is selected ra
14. v PM Deviation A A A A OE 0 vo B P Connection established to 192 168 1 46 via LAM Figure 4 MODULATI ON tab for internal frequency and phase modulation Reference The unit can be locked to an external frequency reference by connecting to the external reference input in the rear panel To enable the external reference go to the REFERENCE tab Figure 14 Click Use ext reference and enter the reference frequency The reference frequency must be between 1 and 230 MHz and precisely known The lock status is shown as Locked green color or Not Locked red color Make sure that your reference has the required accuracy of 1 5 ppm 24 File Controller View Info Ouma N CONTROL CW SWEEP MODULATION REFERENCE TRIGGER LF OUT Enable 10 MHz Reference Output Use ext Reference External Reference A A A A A A A A A o e e e o o mre Y Yy Y YIIVITYILLYTIVTTN Locked P Connection established to 192 168 1 46 via LAN Figure 5 REFERENCE frequency setting Using the Trigger options Figure 15 The unit supports internal and external triggering for frequency power and list sweeps To set the trigger options go to the TRIGGER tab as shown in Figure 6 Various trigger sources are available a the trigger key which is the RF on off button b LAN SCPI c external input at the rear panel currently shared with the pulse modulation input The external TRIGGER input should be a TTL lo
15. A A A A A A A A A A 1 2 o ojo ojojo oj ojo Y Y Y Y Y Y Y Y Y Y Y Y Y Y A Save to Memory Jot t T5 o aom EE De Virvily Y P Connection established to 192 168 1 46 via LAN Figure 6 CW tab Sweeps Besides the basic CW operation the unit supports several frequency and power sweeping modes Sweep parameters can be set in the SWEEP tab Figure 7 Select frequency power or list sweep by clicking on the FREQ SWEEP POWER SWEEP or LIST SWEEP tab respectively Frequency Sweep Figure 7 To start a frequency sweep a enter start and stop frequency in Hz unit b enter the number of points or points per decade c enter the dwell time in milliseconds min dwell time is 50 microseconds d enter the off time in microseconds e select the sweep mode as linear or log additionally click random if random sequence is desired f select the repetition mode enter number of repetitions or choose infinite g select the ALC mode on hold or off Generally ALC on is used If very short dwell times 1 2 ms are needed the ALC can be set to hold This 15 way the ALC loop is disabled during the sweep The ALC voltages are calibrated before the sweep to maintain high level accuracy during the sweep h press the on off button The time resolution is 200 ns Note that the sum of the dwell time and the off time must be greater or equal 1 0 ms The dwell time must be at least 50 lt s
16. BINC Models 835 845 User Manual Berkeley Nucleonics Corporation Tel 415 453 9955 info berkeleynucleonics com Fax 415 453 9956 www berkeleynucleonics com Contents de ANEFOOWERON M M 4 General Features and Functions oenen eenen enen ennen 4 ODTONS zen 4 Front Panel OVERVIEW ns vereezrrenenmivorwseers verkent VI URS Drs ae KWRE nekeer nti indeed 5 Rear Panel Connections onee nnn 7 2 GEEENG eel a e ei nee ee ee ee 8 System Requirements ee ee oes ees te xu n EURO YR RRaYwievFRFC FA xr RM dd aksen ene 8 Unpacking the UNIE cm 8 CAE PSD CCU IN nennen entre tete bede de otd dee gelaten 8 Starting the unit ooo eee ee eee eee eese meses enne nnns 8 Applying POW CP ARTHRR 8 Connecting to EAN T 8 Direct connectivity to host via Ethernet cable no router e 9 Connecting though USBTMC cece eee hehehe emnes 9 Installing the Remote Client nennen nnn 9 Troubleshooting the LAN Interconnection eee 10 Shutting DOWN ET 10 3 Using the Graphical User Interface GUI nennen 11 Start the GUL eem 11 Simultaneously controlling Multiple Signal Generators from one PC 11 Network Configuration oade eeen enen enen eve
17. ax and functions Using SCPI The Standard Commands for Programmable Instrumentation SCPI provides a uniform and consistent language to control programmable test and measurement devices in instrumentation systems The SCPI Standard is built on the foundation of I EEE 488 2 Standard Codes and Formats It requires conformance to IEEE 488 2 but is pure software standard SCPI syntax is ASCII text and therefore can be attached to any computer test language such as BASIC C or C It can also 43 be used with Test Application Environments such as LabWindows CVI LabVIEW or Matlab SCPI is hardware independent SCPI strings can be sent over any instrument interface It works equally well over GPIB RS 232 VXI bus or LAN networks Please see the Programmer s Manual for detailed description of supported SCPI commands Using Telnet LAN Telnet provides a means of communicating with the signal generator over the LAN The Telnet client run on a LAN connected computer will create a login session on the signal generator A connection established between computer and signal generator generates a user interface display screen with gt prompts on the command line Using the Telnet protocol to send commands to the signal generator is similar to communicating with the signal generator over LAN You establish a connection with the signal generator and then send or receive information using predefined commands SCPI comma
18. between 1 Hz and 10 kHz Enable modulation by pressing the RF On Off button Exit the submenu by pressing the menu key 37 Figure 15 Amplitude Modulation submenu Frequency Mod Submenu In the Frequency Mod submenu the external frequency modulation can be accessed Enable modulation by pressing the RF On Off button Exit the submenu by pressing the menu key Figure 16 Frequency Modulation submenu Reference Submenu After accessing the Reference menu use the p n arrow keys to move the cursor between the ON OFF entry and the reference frequency entry Use the rotary knob to toggle between ON and OFF or to change reference frequency to the desired value respectively The display shows up as follows Reference ON OFF Ref Frequency Figure 17 Reference submenu Confirm the setting by exiting the menu pressing the menu key Trigger Submenu After accessing the Trigger menu use the p n o m arrow keys to move cursor between the various menu entries Use the rotary knob to toggle the selected entry value or to change selected digit The display shows up as follows Trigger Source Continues Figure 18 Trigger submenu Trigger Slope Retrigger on off immediate Trigger delay Select SOURce I MMediate EXTernal BUS SCPI command KEY RF on off button Select SLOPe POSitive NEGative Select CONTinuous ON OFF ON means that the trigger is re armed after each trigger occurance Select RETR
19. e RF key to save the configuration don t if you want to discard your changes Press the menu key to exit the LAN submenu Display Settings Submenu After accessing the Display Configuration menu use the rotary knob to change the display contrast as required Press the menu key to save and exit the Display Settings submenu 40 Figure 22 Display settings submenu Default Settings Submenu After accessing the Default Configuration menu use the rotary knob to Settings submenu Figure 23 Default settings submenu Figure 24 Save startup settings Figure 25 Restore startup settings 41 5 Programming The signal generator can be remotely programmed via a 10 100 1000Base T LAN interface and LAN connected computer using one of several LAN interface protocols The LAN allows instruments to be connected together and controlled by a LAN based computer LAN and its associated interface operations are defined in the IEEE 802 2 standard The units support the following LAN interface protocols 1 Socket based LAN proprietary function calls defined in the dynamic link library DLL provided with the instrument used for general programming using the LAN interface under Windows operating system 2 VXI 11 SCPI version 1999 commands firmware 2 0 upwards 3 Telephone Network TELNET TELNET is used for interactive one command at a time instrument control For LAN operation the signal generator must be connected to the
20. e amount of time if your PC is configured to work with an external DHCP server In some cases the connection may even fail completely Use a fixed IP instead Make sure that your software firewall enables the software to setup a TCP IP connection within the LAN Under Windows XP you can do that like this Open Control Panel under Settings in your Start menu Then go to Windows Firewall Click on Exceptions and then add Program If the Software is in this list choose it and click OK otherwise you have to browse for the path to the Software Finally close all open dialogs with OK Now your Windows Firewall is ready Shutting Down Press the Line on off switch on the rear panel to off 10 3 Using the Graphical User Interface GUI The graphical user interface provides an intuitive control of the unit It runs under any Windows operating system Make sure the software is installed correctly and the computer s firewall configured properly The dynamic link library DLL uses the Microsoft NET framework Start the GUI Double click the shortcut that will appear on your desktop after the software has been successfully installed After start the software will automatically detect existing instruments In the CONTROL tab the detected Devices are listed Clicking on one of the devices will instantly establish connection Clicking on a different device will disconnect the old device and connect to the selected device By clickin
21. e internal battery is supplying the power until it is exhausted Table 2 Operating modes equipped with internal battery External power supplying power disconnected adaptor Power Switch Normal Battery operation operation until discharged Charging when fully Completely powered off charged A standby 2 Notes 1 The unit will switch off automatically when the battery is discharged It is recommended that the power switch be turned to the OFF position when the battery is fully discharged 45 2 Termination of charging is automatic the unit will then enter standby mode The power adaptor can be left connected for any length of time During operation the approximate remaining battery capacity is indicated by the battery symbol visible in the upper right corner of the display i mn Bn NN M 5 3 g B j E T ul Figure 26 CW Display with Battery Symbol Hints for maximizing the battery running time 1 Fully charge the unit before use For this toggle the power switch to ON and then OFF again while the unit is powered by the external power adaptor This will initiate a new charge cycle 2 Charging time of a completely discharged battery can be up to 6 hours The battery will only be charged when the unit power switch is in the OFF position 3 Batteries should always be charged at room temperature Charging the unit at very low or at elevated temperatures may result in early te
22. eeeeeeeeeeeeeeeeeeeeeeeeeeeneneeeetetaeananegs 49 1 Introduction to the BNC Microwave Signal Generators Your BNC Signal generator kit contains the following items X X X X Mainframe Universal power adaptor AC 100 240V with UK US EU plugs Ethernet Cable Manuals amp software CD It is strongly recommended to use the original power adaptor as supplied with the device to guarantee safety and reliable operation General Features and Functions The BNC Microwave Signal Generators offer x 835 6 9 kHz to 6100 MHz frequency range settable to 6400 MHz 845 10 MHz to 20 000 MHz frequency range settablefrom 9 kHz to 20 500 MHz 30to 13 dBm power levelled range 835 6 extendable to 100 and 130 dBm with option PE and PE2 respectively x 20to 13 dBm 845 extendable to 90 and 120 dBm with option PE and PE2 respectively x Modulation capabilities for FM PM AM and pulse modulation X Fast frequency power and list sweeps x Light weight optional internal rechargeable batteries option B3 x 3 inch status LCD x Long term support Software upgrades firmware and PC based are available to download You can also call our technical specialists for support You can continue to use both of these services free of charge for the lifetime of the product x USB 2 0 device and host interface X Universal LAN interface X 18 months calibration cycle Options B3 internal rechargeable battery PE for 835
23. evel is 30 dBm maximum The maximum allowed DC level is 10 V Rotary knob Varies the value at a cursor position maked by the symbol Moves the entry cursor within the various submenus Menu Key This is a multifunction key The key is used to enter and leave all the submenus displayed on the screen pn o m Keys These keys are used to move cursor within the screen menus LAN LED illuminates as soon a remote connection via LAN is active Power LED illuminates when system is powered up 29 Displayed Parameter Formats This section describes how to edit the frequency and amplitude and how to invoke the remaining functions in local mode CW Display The Main or CW Display is shown after the instrument has successfully booted and is ready The four line display has the following format Frequency Power Ref Frequency IP Address The currently active display position is shown by the cursor underline symbol 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 counter clockwise 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 Use the up and down keys p n on the front panel to switch between frequency and power Use the left and right arrow keys
24. file must be a 4 column CSV file with the following syntax on each line 18 frequency in Hz power in dBm dwell time in s off time in s Note the four entries in each line must be separated by a semicolon Figure 10 shows a valid list file with four points displayed in Microsoft Excel Each line describes one list point The first line must contain all for entries in any other line entries may be omitted Lists may contain up to 10 000 lines The dwell time must be at least 50 s The off time may be set to zero if the output is not to be disabled during transients The sum of dwell time and off time must at least 1 0 ms Transient times depend on the frequency steps and are typically less than 10 s for a 100 MHz step The number of repetitions determines how many times the lists will be executed File Controller View Info OMAN CONTROL Cw SWEEP MODULATION REFERENCE TRIGGER LF OUT FREQ SWEEP POWER SWEEP LIST SWEEP Swept Parameter 5 r Indexing Iv Frequency f Up C Down C Random P Connection established to 192 168 1 46 via LAN Figure 9 LIST SWEEP tab 19 20 E Microsoft Excel list_4entries_2Gd E ple Edt wew Insert Format Tools Data Window Help ijo rm 4 OSR SAY sam a fg ta dm A B el Ye Reply with changes End Re 2400000000 10 2500 500 2420000000 55 sd Suu 2440000000 1B 4500 SUD 2460000000 15 5 2500 SUL Figure 10 CSV
25. file with four points 1 column frequency in Hz 2 power in dBm 3 dwell time in Ps 4 off time in Ps Values must be separated by semicolon List Editor Device List RAM List Editor EET SES Frequency He Power pylori Time pge Time v Stare d xd Device List Memory List D null List 1 null File Name Delete all Delete selected p pen list file csv Gave list file csv Figure 1 List Editor Modulation Control The unit provides various modulation capabilities that can be accessed by the MODULATION tab Figure 2 PULSE MODULEATI ON On the left the internal pulse modulation can be preset and started with the ON OFF button Enter pulse width and modulation period in milliseconds as required Note that pulse width accuracy is approx 0 1 Ps For external pulse modulation the ext Pulse Enable must be checked I nvert the polarity of the external video signal by checking Inverse Polarity AMPLI TUDE MODULATI ON The internal AM can be enabled by pressing the ON OFF button in the AM portion of the submenu Modulation depth can be selected from 1 to 99 96 AM modulation rate can be set from 1 Hz to 50 kHz The internal function generator is used to provide the modulation signal External AM can be enabled with ext AM Enable ANGLE MODULATI ON The frequency and phase modulation settings can be accessed by selecting tab FM PM Figure 12 and Figure 13 For external angle modulati
26. g on the Refresh button a scan for new devices is started Alternatively the IP address of an instrument can also be typed directly at the lower right of the CONTROL tab This may be necessary if the instrument is working in a LAN environment where broadcast massages are blocked and the GUI auto detect function may fail Simultaneously controlling Multiple Signal Generators from one PC You can easily control multiple units from a single computer over the LAN connection but you need to start a separate GUI for every instrument Network Configuration If your network does not have a DHCP server or a static IP address is preferred you can set an IP address network mask and default route The address and mask settings are required The default route is not strictly necessary but enables network communication between the test set and devices on a subnet other than that to which it is immediately attached The network features can be used on the local area network even if no default route specified as 0 0 0 0 is configured The Network Configuration button allows configuring the LAN settings as shown in Figure 4 Using a DHCP dynamic host configuration protocol server can be enabled or a static IP can be entered by user The device name can be modified as desired The unit serial number and firmware revision are displayed on the bottom 11 Network Configuration A MV use DHCP IP Adress 32168141 Gateway 3215811
27. gic signal The following trigger parameters can be defined a trigger delay 50 lt s to 10 sec in 1 lt s resolution predefined delay after trigger signal arrives The trigger delay uncertainty is 2 lt s b trigger modulo N 1 to 255 defines every Nth trigger event to be used c trigger active edge positive or negative e trigger type single point complete sweep or gated 25 Confirm settings and arm trigger by pressing the Apply button As soon as a sweep is programmed the output is disabled while the trigger is expected Upon arrival of the trigger the sweep is executed after given trigger delay Any trigger signal arriving during execution of the sweep will be ignored If single sweep has been selected the sweep will be executed only once as soon as first trigger signal arrives As soon as the sweep is completed the frequency will return to the preset CW frequency If repeat sweep is selected the sweep will be executed every time the trigger Signal arrives After the sweep is completed the frequency the RF output is disabled until next trigger arrives With trigger type the user can select the trigger either to execute only a single point from the sweep or the complete sweep When gated is selected the sweep is only executed while the trigger signal is high Q ED A a CONTROL CW SWEEP MODULATION REFERENCE TRIGGER LF ouT Trigger Mode Trigger Parameter C Single INIT CONT OFF Am Eyecute
28. he sweep by pressing the RF On Off button The submenu can always been exited without starting the sweep by pressing the menu key Repetition ALC on off 34 Figure 12 Displays shown for the list sweep configuration Important note All sweeps must be started with the RF on off button on green light illuminated otherwise no signal will be output during the sweep Modulation Submenu After accessing the Modulation menu use the p n arrow keys to select the desired submenu entry Press the menu key to enter the selected submenu Choose EXIT to return to the main menu Pulse Modulation Amplitude Modulation Frequency Modulation 35 36 Figure 13 Modulation submenu Pulse Mod Submenu In the Pulse Mod submenu the pulse modulation can be accessed Use the p n arrow keys to move the cursor to the parameter that you want to change Use the m and rotary knob to modify the parameters On line 1 select between INT internal pulse generator and EXT external input If internal modulation INT is selected go to line 2 to change pulse width to desired value and go to line 3 to change pulse modulation frequency Enable modulation by pressing the RF On Off button Exit the submenu by pressing the menu key Figure 14 Pulse Modulation submenu Amplitude Mod Submenu In the Amplitude Mod submenu the internal amplitude modulation can be accessed Use the rotary knob to set the modulation rate
29. igger OFF ON IMMediate OFF means that any trigger event during execution of list is ignored 38 Enter DELAY trigger delay in microseconds Press the RF On Off button to arm the trigger Exit the menu by pressing the menu key LF OUTPUT Submenu In the LF OUTPUT Submenuthe FUNCT OUT output at the rear panel of the instrument can be configured Press the RF On Off button to turn the output on and off Exit the menu by pressing the menu key On the first screen the source for the FUNCT OUT can be selected Choose LFG for the low frequency generator TRIG to enable the internal trigger output and PULM to enable the pulse video output If LFGis selected use the p arrow to proceed to the second display Select waveform between sine triangle or square Then enter the desired output frequency and voltage amplitude Figure 19 Displays shown in the LF OUTPUT submenu LAN Configuration Submenu After accessing the LAN Configuration menu use the p n arrow keys to move cursor between IP address and submask address Use the rotary knob to change selected digit The display shows up as follows 39 Figure 20 LAN configuration submenu display 1 Once you have done changes as required press the menu key to continue the configuration to the second display The display shows up as shown below Figure 21 LAN configuration submenu display 2 Use the rotary knob either enable x or disable DHCP Finally press th
30. lists Safety FCC notice This equipment has been tested and found to comply with the limits for a Class A device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area may cause harmful interference in which case the user will be required to correct the interference at his or her own expense CE notice The 835 3 Signal Generator meets the intent of the EMC directive 89 336 EEC and have been designed to EN61326 Class A Emissions and I mmunity standard The 835 3 also meets the intent of the Low Voltage Directive and have been designed to meet the IEC 61010 1 2001 safety requirements for electrical equipment control and laboratory use standard Warranty Information All BNC instruments are warranted against defects in material and workmanship for a period of one year from the date of shipment BNC will 49 at its option repair or replace products that prove to be defective during the warranty period provided they are returned to BNC and provided the preventative maintenance procedures are followed Repairs necessitated by misuse of the prod
31. ment is now ready to receive remote commands Direct connectivity to host via Ethernet cable no router If you want to connect the instrument directly to your computer without router in the LAN you must use an Ethernet cable with crossover not required if your computer has Gigabit Ethernet To work properly the network card NIC of your computer shall be set to a fixed I P beginning with 169 xxx xxx xxx In general connection with a NIC that is configured to use DHCP is also possible but depending on the configuration the connection may take several minutes After a short time the instrument will detect that no DHCP server is present and assign itself a default IP number 169 254 5 5 The instrument now must show 169 254 5 5 on the display Should the IP not appear after more than 30 seconds leave the LAN cable in place and turn the instrument off and then on again and retry Connecting though USBTMC Connect the unit to the PC using the USB cable The PC must be configured with a VI SA runtime environment NI or Agilent or comparable If connected properly the VI SA will detect the 835 6 and you can use VI SA Write to send the IDN query and use VI SA Read to get the response The USBTMC protocol supports service request triggers and other GPIB specific operations The remote client graphical user interface will detect all attached devices automatically I nstalling the Remote Client The graphical user interface
32. ndomly between start and stop frequency The number of different output frequencies is determined by the number of points selected by the user Power Sweep Figure 8 To run a power sweep enter start and stop power in dBm unit the number of steps dwell and off time in milliseconds Dwell time is at least 50 s the sum of 16 the dwell and off time must be at least 400 lt s When auto is selected the off time is automatically adjusted such that during switching transients the output is disabled and the sum of dwell and off time are at least 400 s Select if the sweep should be run a predefined number of times enter desired number or infinite times selecting infinite Select ALC settings Start and stop the sweep by pressing the ON OFF button ROA CONTROL cw SWEEP MODULATION REFERENCE TRIGGER LF OUT FREQ SWEEP POWER SWEEP LIST SWEEP Start Frequency Alla A AT AT Al A al fal A A lan DE OEE IE OEE ue vivi liv Evil Ev Ev Dvd Ev v Ie ira Stop Frequency Al FA TAI TATTA FATFATAFAT AITAITA 7 ALE Mode gt Points 11 over span Ton ms Hold viivi Vi vl fv vi iv wv vi vl v Ofte 10 me ham Cor Connection established to 192 168 1 46 via LAN 3 Using the Graphical User Interface GUI Figure 7 FREQENCY SWEEP tab List Sweeps Figure 9 List sweeps allow to set frequency output power dwell time and off time for each entry individuall
33. nds are supported from firmware version 2 0 Communication is interactive one command at a time The telnet service is available on port 18 Please see the Programmer s Manual for further details 44 6 Battery Operation B3 Option If your unit is equipped with an internal rechargeable battery B3 option it can be operated without the external power supply Fully charged the battery is good for up to three hours of operation at full RF output power The same external power adaptor 6 V 3 A is used for the battery version as for the standard version for both normal operation and charging of the battery There are four operating modes that are also summarized in Table 2 below normal operation the external power supply is connected to the unit and the device is turned ON with the power switch on the rear panel turned ON In this mode the unit can be used as if no battery was present The internal battery is not used and will NOT be charged charging the external power supply is connected to the unit and the device is turned OFF with the power switch on the rear panel turned OFF n this mode the unit is charging the internal battery Once the battery is fully charged the goes into standby mode The time required to complete charging is approx four hours standby the internal battery is fully charged and the unit is turned OFF battery operation the external power supply is disconnected and the device is turned ON Th
34. on enter the desired sensitivity per Volt for either frequency or phase modulation and press the ON OFF button Connect source with external modulation signal at the rear BNC input To use the internal FM PM modulation he modulation rate and deviation can be entered in the appropriate fields 21 22 CONTROL CW SWEEP MODULATION REFERENCE TRIGGER LF OUT PULSE AM FM PM int Pulse Modulation int AM ext Pulse Pulse Width Modulation Frequency A A A A A A A A Al A A A A VILVILV ITY VIPVILVILY VIIVIIVIIVILY Pulse Repetition Period Modulation Depth A A A A A A A A Y Y Y Y Inverse Polarity P Connection established to 192 168 1 46 via LAN Figure 2 MODULATI ON tab for pulse and AM modulation 23 Fis console View Info Oua CONTROL CW SWEEP MODMLATION REFERENCE TRIGGER LF OUT PULSE AM PM Source FM Extemal Sensitivity AC C Intemal A A AA A A A A Modulation Frequency o Hz AIAI Alfalfa Y Y Y Y Y yvy Ye Le v Hz _OFF YIIVIIYI IYILYIIY C DC Figure 3 MODULATI ON tab for external angle modulations File Controller view Info ORS CONTROL CW SWEEP MODULATION REFERENCE TRIGGER LF OUT PULSE AM FM PM Source FM C External Deviation AC fr tene A A A A A A A A DE Modulation Frequency Boon oj oj o He A A lA A Ta 4 YII LILY LY LY oj e oj 4 o o te _OFF vl vl wv wv v1
35. p Mode Repetition ALC on off Figure 10 Displays shown for the frequency sweep configuration Power Sweep Submenu After accessing the Power Sweep menu the first of total three displays allow to enter start and stop power by using the m keys to select the digits and using the rotary knob to increase and decrease their values Use the p n arrow to move between the several displays that contain settable sweep parameters On the second display the 32 number of points and the on and off time can be entered On the third display select the repetition mode between INFinite and 1 single repetition Start the sweep by pressing the RF On Off button The submenu can always been exited without starting the sweep by pressing the menu key 33 Figure 11 Displays shown for the power sweep configuration Number of Points per Sweep On dwell time Off time Repetition ALC on off List Sweep Submenu After accessing the List Sweep submenu the first of total two displays allow to enter start and stop power by using the m keys to select the digits and using the rotary knob to increase and decrease their values Use the p n arrow to move between the several displays that contain settable sweep parameters On the first display the number of repetitions of the list can be entered and the ALC can be set on or off On the second display a particular list can be selected from the flash memory of the device Start t
36. provides an intuitive control of the unit It runs under Windows operating system with minimum requirements The DLL is embedded in the GUI application and requires the Microsoft amp NET framework to be installed To install the GUI on the computer insert the Software and Manual CD into the CD DVD drive If the setup doesn t start automatically double click on the setup exe to run the auto installer The self extracting setup provides easy installation and de installation of the software The setup program guides you in a few steps though the installation process In case the NET framework is not installed on your current Windows operating system the setup procedure automatically will assist you to install the required version For this you will need an active internet connection Troubleshooting the LAN Interconnection Software does not install properly Make sure your installation CD is not damaged x When Microsoft NET Framework is not installed make sure that your PC is to the internet connected during installation of the Software If no internet connection is available install the NET Framework that is available on the installation CD Software cannot detect unit Make sure you have connected both PC and instrument to a common network X fa direct connection is used make sure you use an appropriate crossover Ethernet cable 10 and 100Mbit LAN only Note that detection of the unit can take a considerabl
37. rmination of the charging process i e the battery is not fully charged For safety reasons the charging does not start when the internal temperature of the instrument is above 50 C 4 Checkthe battery indicator in the upper right corner of the display it should indicate full charge when running on battery power after charging 4 segments 5 Power consumption of the unit is reduced when the RF power is switched off thereby increasing overall battery run time 6 Battery run time is maximum for ambient temperature between 15 and 25 C Self discharge of the battery is much faster at temperatures above 30 C 7 Avoid storing the unit in very hot places such as behind the windshield of a car parked in the sun Hints for maximizing battery life expectancy 46 47 1 The battery will reach its best performance after the first few charge discharge cycles 2 Always use the external power adaptor supplied for normal operation and charging This will make sure that the charging circuits work as specified 3 Fully charge the unit after running it from the battery for an extended period of time 4 If a unit with internal battery will be stored for a long period of time fully charge it before storage then remove the power adaptor and make sure that the power switch is in the OFF position After storage first charge the unit for 4 6 hours To replace the battery at the end of its lifetime please contact BNC or one of its di
38. rs EERE EES 11 Perform Firmware Upgrade neen vereen en venen ennn nennen ennen 12 Store and Revoke Instrument States 0 ccc eee eee ee eeeeeeeeeeeeaeannaees 12 Usmo TOODA S aa et rr ee nee ee ee ee ne Ce eee 13 Basic CW OG Fa UO ih ic cc tresensserrserinerseeretrdeeendasnertdtektetedenmortterse ried da ai 14 SWEEPS arate eee es a wma indicts ew nee ses t esas nee peace M UNDE MEE dE 15 Frequency Sweep Figure 7 cccccccccc cece ccc e cece cece cence eee eee nnns 15 Frequency Linear Sweep ocolos pc EUER ieee dinewsecawnss nveieceenindeessgeeer eee 16 Frequency LOG Sweep si ciciesiceciteiccceietsscidnessensncudenteencareaancsicenestisedeteiseteesnadtadedts 16 Frequency Random Sweep ccc cece cece eee e cece cece esses nnns 16 Power Sweep Figure 8 anneer EEE EE eneen enen nnen 16 List Sweeps Figure 9 arriere tentamen 17 Modulation Control arena 21 jiili l ile TEC HE 24 Using the Trigger options Figure 15 vennen vennen vennen 25 LF OUT D I 2 Pr 27 Combined Modulation eneen enne 28 4 Local Operation HC Option ssssseuusussss III meme nemen 29 Displayed Parameter Formats eenen eee neee eveneens 30 CW DISDEAV senen eeen 30 Main Menu Display cis worservsmereneinterneledenhenr ded tinenederinneeinkwardedhese draden deehvanheite 30 Frequency Sweep Submenu
39. s and Winsock for Microsoft systems The signal generator is also compatible with other standard sockets APIs The signal generator can be controlled using predefined SCPI functions available from firmware 2 0 upwards use the socket connection established in your program Socket connection is available on port 18 Using and Configuring VXI 11 The signal generator supports the LAN interface protocol described in the VXI 11 standard VXI 1lis an instrument control protocol based on Open Network Computing Remote Procedure Call ONC RPC interfaces running over TCP IP A range of standard software such as NI VISA or Agilent I O Config is available to setup the computer signal generator interface for the VXI 11 protocol Please refer to the applicable software user manual and documentation for information on running the program and configuring the VXI 11 interface The program is used to configure the LAN client Once the computer is configured for a LAN client you can use the VXI 11 protocol and the VISA library to send SCPI commands to the signal generator over the LAN interface Example programs are available on request VISA is an IO library used to develop IO applications and instrument drivers that comply with industry standards It is recommended that the VISA library be used for programming the signal generator The NI VISA and Agilent VI SA libraries are similar implementations of VISA and have the same commands synt
40. stributors Before using the unit in battery mode for the first time the battery must be fully charged Batteries must be disposed off according to the local environmental regulations 7 Extended Power Range PE PE2 Options Both the 835 3 and the 835 6 are available with options extending the power range towards lower power levels With these options installed the minimum settable power level in CW operation is extended down to 150 dBm For the guaranteed minimum power level please consult the respective datasheet In POWER SWEEP Mode the user shall avoid running sweeps over large power ranges gt 30 dB for extended periods of time as this will result in continuous switching of the mechanical attenuators and thus reduce the lifetime In sweeps where the mechanical attenuator is switched the minimum dwell time increases to 20 ms 48 8 Maintenance and Warranty Information Adjustments and Calibration To maintain optimum measurement performance the 835 3 should be calibrated every 24 months It is rrcommended that the 835 3 be returned to BNC or to an authorized calibration facility For more information please contact our Customer Service Department at 415 453 9955 or info berkeleynucleonics com Repair The signal generator contains no user serviceable parts Repair or calibration of the signal generator requires specialized test equipment and must be performed by BNC or its authorized repair specia
41. uct 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 BNC is not liable for consequential damages The warranty on the internal rechargeable batteries option B3 is one year from the date of shipment Battery replacement is available through BNC and its distributors Equipment Returns For instruments requiring service either in or out of warranty contact your local distributor or the BNC Customer Service Department at the address given below for pricing and instructions before returning your instrument When you call be sure to have the following information available Model number Serial number Full description of the failure condition Note Model and serial number can be found on the rear of the 835 3 unit next to the power plug You will get a Return Mechandise Authorization RMA number from BNC please put it on the outside of the package 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 BNC will provide an estimate for the cost of repair Customer approval of the charges will be required before repairs can be
42. y To start a list sweep the following steps are required a select sweep parameter b select indexing 17 c upload list file from computer CSV file d select number of repetition e select the ALC mode on hold or off Generally ALC on is used If very short dwell times 1 2 ms are needed the ALC can be set to hold This way the ALC loop Is disabled during the sweep The ALC voltages are calibrated before the sweep to maintain high level accuracy during the sweep f start sweep with on off button File Controller View Info OR I VV a CONTROL CW SWEEP MODULATION REFERENCE TRIGGER LF OUT FREQ SWEEP POWER SWEEP LIST SWEEP Start Power A A A Sweep Mode 34 im e Linear aan oO Repellions 4 VIIVIIY IY a ide Stop Power A A A A Points 1 ee j 0 s dm Dwell Time 10 ms VIIVII v Off Time i0 ms v Auto P Connection established to 192 168 1 46 via LAN Figure 8 POWER SWEEP tab You can select if you want frequency output power or both to be swept If only one of the two parameters is selected the second parameter is held constant during the sweep The value is set to the value in line 1 of the CSV file You can choose the indexing of the list to go up down or be random If you select random indexing the index is randomly chosen for N times where N is the number of list points The input
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