Results 31
  • How to Measure the Bandwidth of a Transmission Channel

    How to Measure the Bandwidth of a Transmission ChannelQuestionI have to measure the bandwidth of a filter or transmission channel. How can I do this?AnswerIn the Spectrum Analyzer mode, you can use several markers and delta markers and findthe bandwidth manually. However, using the "n dB down" marker function is more convenient:"n dB down" activates the temporary markers that are n dB below the

  • Marker Demodulation

    Marker DemodulationQuestionHow can I use the marker demodulation?AnswerThe analyzers with audio demodulator and internal speaker (FSP: FSP-B3 required) offer the possibilityto demodulate the signal at the marker position and listen to the demodulated signal using the MARKER DEMOD function. AM and FM demodulation is possible. The MARKER DEMOD function can be used in ZERO SPAN andin normal frequency

  • State of external reference via remote control

    State of external reference via remote controlQuestionI have switched to an external reference frequency.How can I check if the frequency is locked via remote control?AnswerYou can check the state of the external reference frequency with the STATus:QUEStionable:FREQuency registerSTAT:QUES:FREQ:COND?If the reference frequency is not locked, it will return a '2' or a '512'.If everything is OK, it

  • Restore the Auto Logon Configuration

    Restore the Auto Logon ConfigurationQuestionBecause of a LAN operation I changed the logon name. Now I have changed it back to 'instrument' but I still get a logon window for the password at every boot-up . How can I restore the normal auto logon configuration?AnswerIn WINDOWS, please click START and RUN (opens 'regedit') and then OK.In the tree on the left-hand side, choose the following:

  • Remote Desktop: How can I see all Analyzer Buttons on the PC Screen?

    Remote Desktop: How can I see all Analyzer Buttons on the PC Screen?QuestionI have connected my PC to the analyzer via LAN. The firewall settings are made, I have a remote desktop connection, but I cannot see all buttons of the analyzer on my PC.I even shut down the analyzer function and restarted the analyzer function on the analyzer, but this did not help either.AnswerPlease do not restart the

  • How can I Update my Analyzer via LAN?

    How can I Update my Analyzer via LAN?QuestionHow can I update my analyzer with embedded WIN XP via LAN?Answer- Open a remote desktop session to the analyzer on your PC- Close the analyzer function on the PC with ALT + F4- Open Start=> Settings => Control Panel => Security Center => Windows Firewall => Exceptions- Enable 'File and Printer Sharing'- Start the Windows Explorer, go to Tools, select

  • Remote Control via RS232

    Remote Control via RS232QuestionI want to remote-control my analyzer with LabWindows via RS232. Can you tell me how to proceed because all my trials were in vain. Remote control is successful with GPIB, but I prefer to use RS232.AnswerThere can be some problems with remote control via RS232:1) Settings in the analyzer - SETUP => GENERA SETUP => COM INTERFACE- The OWNER must be INSTRUMENT. If it is

  • How to Create a User-Defined PRESET

    How to Create a User-Defined PRESETQuestionHow to create a user-defined PRESETAnswerTo create your own PRESET, please proceed as follows:- Push the PRESET button.- Make the settings you want for your own PRESET.- Store the setup under a specific name (for example "MYPRESET")on the FSIQx, FSEx, ZVx and ESIBx:- Go to the "RECALL" menu (on the ZVx in the right side menu) and select the setup "

  • Sending a Remote Control Ccommand Internally

    Sending a Remote Control Ccommand InternallyQuestionI need to send a remote control command to the device, but I do not have a PC available to control the device.Can I do this internally with the device itself?AnswerYes, Go to the device's Windows function Open the Windows Explorer Open the C:\Program Files\Rohde&Schwarz\Network Analyzer\Bin folder Execute the iecwin32.exe program Choose the RSIB

  • How to check the internal Calibration Source?

    How to check the internal Calibration Source?QuestionDuring calibration I got the error message 'CAL GEN signal low'.How can I check the internal calibration source?AnswerYou can switch the RF path to the internal calibration source in the SETUP - SERVICE menu(menu for the FSL: SETUP - MORE - SERVICE).The calibration source should be a signal of 128 MHz and -30 dBm (for the FSL 65.8 MHz and -20

  • Firmware Rollback

    Firmware RollbackQuestionI want to update my firmware. Can I also roll back the firmware to my old version before firmware update?AnswerWhen the analyzer firmware is updated, the analyzer will boot and operate exactly as before – in some cases even better. But if you want to return to the old version, you can restore the old analyzer firmware by pressing SETUP =>NEXT => FIRMWARE RESTORE.After you

  • Remote Control: Interaction between TCP/IP Address and Subnet Mask

    Remote Control: Interaction between TCP/IP Address and Subnet MaskQuestionI want to remote-control via LAN a device from a PC. The PC and the device have their own TCP/IP addresses, but I get no connection when I use those addresses. Which function does the Subnet Mask have?AnswerThe controller can establish a connection via LAN in two different ways:It can query its local network to find a device

  • FSP and FS-K3

    FSP and FS-K3QuestionIs it possible to use Noise Measurement Software FS-K3 with FSP?AnswerApplication software FS-K3 (>= version 2.11) can be used together with the FSP.The software runs either on an external PC or directly on the FSP. If the software is operated on the FSP, it is not possible to control additionally an external generator for measurements on frequency-converting DUTs.The settling

  • Trace Data Export to File Readable with other Programs

    Trace Data Export to File Readable with other ProgramsQuestionHow can I get the trace data as a file which I can read with another program, e.g. EXCEL?AnswerThe second submenu of the TRACE menu contains the ASCII FILE EXPORT function. This function generates an ASCII file with the setup and trace data. A description of the file format can be found in the operating manual, Chapter 4, Analyzer Mode,

  • Use of Frequency Counter

    Use of Frequency CounterQuestionThe frequency of my signal can be measured with normal markers, but I want tohave it more accurate. Is there any solution and what is the reason for thelimited accuracy?AnswerThe frequency resolution of the marker readout is limited by the number of display points on the frequency axis.This limits the accuracy.Especially in the case of large span values, the

  • IEEE Bus - Dark Screen

    IEEE Bus - Dark ScreenQuestionThe display is dark when the first IEEE command is sent. How can one change this?AnswerPlease send: SYSTEM:DISPLAY:UPDATE ON. Please keep in mind that the FSP is much faster on the IEEE bus if the display is not updated.

  • Screensaver on Spectrum Analyzers

    Screensaver on Spectrum AnalyzersQuestionThe screen of a spectrum analyzer goes black after a certain time. After pressing a key, the instrument's screen recovers. This indicates that the analyzer's screensaver is switched to on state. What can be done to switch the screensaver off? And which keystrokes are necessary to enable the analyzer's screensaver?AnswerChecking if screensaver is on or

  • Transfer Hardcopy from FSP to PC via GPIB

    Transfer Hardcopy from FSP to PC via GPIBQuestionIs it possible to copy a hardcopy file from the FSP hard disk to the floppy disk of a PC by using GPIB commands?AnswerYes, it is possible to do so. In the following, you will find a BASIC example showing how to copy a hardcopy file from the FSP hard disk to the GPIB controller.10 REM Set the termination EOI20 IEC TERM 130 IEC OUT 20,"SYST:COMM:GPIB:

  • Filter

    FilterQuestionWhich Filter Types can be Selected and how can I see the Filter Curve of the used Filter?AnswerIn the BW menu, you can find a FILTER TYPE softkey. The FILTER TYPE softkey opens the selection list for different filter types. The filter types are NORMAL, FFT, CHANNEL and RRC:For NORMAL, the resolution bandwidths are implemented by Gaussian filters (3 dB bandwidth) and correspond

  • How to Measure Noise Power in a Transmission Channel

    How to Measure Noise Power in a Transmission ChannelQuestionHow can I measure noise power in a transmission channel, e.g. 1 MHzbandwidth at 1 GHz RF frequency?AnswerThere are two solutions for measuring noise power in a transmission channel.One solution is the Noise Marker function at the RF with bandwidth correction.The bandwidth correction factor must be calculated as follows:Correction factor

  • Waiting for Completed Sweep to Read out Trace Data

    Waiting for Completed Sweep to Read out Trace DataQuestionHow do I know when a sweep is completed? After completion of the sweep, I want to read out the trace via the GPIB.AnswerWe suggest that you use the Operation Complete bit.The example below shows how the completion of a sweep with a sweep time of 15 seconds is detectedand Trace 1 is read out.FSP: *RSTFSP: SYSTEM:DISPLAY:UPDATE ONFSP: INIT:

  • Possibility of Recording GPIB Commands?

    Possibility of Recording GPIB Commands?QuestionRemote control: Is it possible to record the GPIB commands that the spectrum analyzer receives?AnswerYes, you can activate this feature under:'SETUP' => 'SERVICE' => 'NEXT'' => 'NEXT' => 'COMMAND TRACKING'Then you will get the file 'IEC_CMDS.LOG' with the commands in the folder 'D:\R_S\INSTR\LOG\'.Please deselect the tracking option afterwards by

  • Analyzer Remote-Controlled over LAN Interface

    Analyzer Remote-Controlled over LAN InterfaceQuestionI am developping an application using the FSP. Remote commands are working well using the GPIB interface. Nevertheless, I am not able to use the same commands over the LAN interface (even if the ping command works fine). What do I have to do?AnswerHere is a little program in an EXCEL file.Please open ESPI_LAN.XLS and go to EXTRAS - MACROS

  • How to use .fsp Files

    How to use .fsp FilesQuestionI have a .fsp file and cannot read it. What can I do?AnswerIn .fsp files, instrument settings and related items are stored in an internal proprietary format. This is necessarydue to the complexity of the parameters that define the instrument’s internal settings. It is not possible to convert.fsp files into other files. To document or evaluate measurement results,

  • Wrong Number of y-values when querying a Trace

    Wrong Number of y-values when querying a TraceQuestionWhen I query the trace with a certain number of sweep points, I get the wrong number of y-values back.For example, if I set the number of sweep points to 1000, I get 1001 y-values back. So I do not know howto assign the x-values (frequency) to the y-values (level).AnswerThe number of sweep points can only be set to certain values.The following

  • Self Alignment via remote control via TCP/IP => 'CAL?

    Self Alignment via remote control via TCP/IP => 'CAL?QuestionI want to make the Self Alignment via remote control with the command 'CAL?'.Because this takes sometimes a very long time how can I detect the end.In the manual is mentioned to use a SRQ, but this does not work when I use a TCP/IP connectionAnswerYes, the SRQ line is a hardware line with the IEEE bus and this does not work with normal

  • How to Connect the Control Cable from the FSP-B10 (ext. Generator Control) to the SMU200A?

    How to Connect the Control Cable from the FSP-B10 (ext. Generator Control) to the SMU200A?QuestionI have a spectrum analyzer with the external generator control option FSP-B10 and I want to connect the control cable to the SMU200A. Which BNC connector on the SMU200A do I have to use for 'Marker', 'Blank' and 'Trigger'?AnswerConnect the 'Blank' connector of the cable to the 'User1' connector of the

  • Reset the RS-232-C connection

    Reset the RS-232-C connectionQuestionI control the analyzer via RS-232-C.I perform a single sweep which is triggered by an external trigger. I synchronize to end of sweep with "*OPC?".Sometimes the external trigger does not come and the "*OPC?" command ends in a time-out.After this time-out the RS-232-C connection jams.How can I open the connection again without restarting the analyzer?

  • Read out FM deviation with GPIB using FS-K7

    Read out FM deviation with GPIB using FS-K7QuestionI want to use the FS-K7 FM demodulation option at 100 MHz with the FSP, FSU or FSQ.How can I change to the analog demodulation function using GPIB commands, and how can I read out the deviation from the Frequency Modulation Summary display by means of GPIB?AnswerIt is possible to do that. You will find the GPIB commands in the FSP manual. The

  • FSx doesn't recognize active probe RT-ZS30

    FSx doesn't recognize active probe RT-ZS30Question:We have an issue with our FSx and the RT-ZS30 probe: the FSx does not automatically recognize the probeCould you please help us to solve this blocking issue.Answer:You can work with the RT-ZS30 connected to the FSx as follows:+ The RT-ZA9 provides an interface between the probe's BNC socket and an N socket and also supplies the probe with the

  • How can I Switch from Remote to Local State via Remote Control?

    How can I Switch from Remote to Local State via Remote Control?QuestionHow can I switch from remote to local state via remote control?AnswerUsing a GPIB connection, you can send a Go To Local (GTL) command.If you use VISA, the command is viGpibControlREN and you have to send the VI_GPIB_REN_DEASSERT_GTLmode.You can also use this solution when you perform programming with drivers.If you use the

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