Trying to acquire from Spectrum Analyzer CATV measurments.

I am using an Agilent E4402B Spectrum Analyzer and can't seem to find any code that would help on the path of acquiring data from the Spectrum Analyzer. Need to acquire Carrier level and frequency, Depth of Modulation, and aural deviation. Currently using Techtronix Spectrum Analyzer and CSS 500 software with GPIB interface. Techtronix no longer makes the software and the scope I am using is not supported any longer for calibration or repair.

Just have to go to the Instrument Driver Network and download it. An IVI driver is available here.

Similar Messages

Obtaining Screenshot from Spectrum Analyzer - Not able to view the image created

Hello,
I am using the following code snippet in my program to get the screen shot from Agilent Spectrum Analyzer , I am able to get a gif image created in the location specified but when i opened it I could not see any result.
Please help out . I also tried with Interactive Utility still the same result , Am i missing something here or is there anything for me understand . please let me know.
ibwrt(DeviceHandle,":MMEMTORCR 'CICTURE.GIF'",30);
ibwrt(DeviceHandle,":MMEMATA? 'CICTURE.GIF'",28);
ibrdf(DeviceHandle,"C:\\PICTURE.GIF");
Thanks
Meeran

Dear Bala,
I have got about 8 to 10 DC's out of which only this one is showing the missing structure and as this dc is being used by other dc's I am getting the error like missing component. Previously we were using the client desktop and doin the work now we have shifted it to our individual systems. Now any project I am creating whether from same track or different same problem comming the structure is missing.
Regards,
Ganesh
Edited by: Ganesh Sawant on Sep 8, 2009 9:42 AM

Intermittant response from spectrum analyzer

I have LabVIEW 8.2, NI 488 v.52. I am having problems talking to an old HP 8568A spectrum analyzer.
I can write to it OK, but reads are intermittant.
It takes a carriage return on the end of commands. On some reads, the response is fine using VISA in LabVIEW or using the NI-488.2 communicator, but on other reads, I get a timeout error EABO.
The funny thing is, the response is actually there from the analyzer...It's like VISA or LabVIEW isn't seeing the response every time. And this happnes with every command written to the analyzer that generates a response..
Here is the NI-SPY capture where the first read went perfectly:
2. ibrd(UD0, "-13.50..", 2000 (0x7D0))
Process ID: 0x000008A8         Thread ID: 0x00000F1C
Start Time: 22:10:05.664       Call Duration 00:00:00.010
ibsta: 0x2900       iberr: 0             ibcntl: 8(0x8)
Here is another where the read timed out, but the correct response was actually read:
>8. ibrd(UD0, "-13.50..", 2000 (0x7D0))
>Process ID: 0x000008A8         Thread ID: 0x00000F1C
>Start Time: 22:11:41.672       Call Duration 00:00:16.774
>ibsta: 0xc900       iberr: 6             ibcntl: 8(0x8)
Thanks in advance for your time and help.
Viv

ALSO:
I forgot to mention that we ended up with the HP8568A having to specify the to specify the number of characters that were read on each read request in the VISA Read VI due to the 8586A’s not sending an EOI.
The read request would time out if we requested the read to end on an EOS character.
Viv

GPIB readout from spectrum analyzer HP4195a

Does someone know how I can readout a HP 4195a spectrum analyzer with GPIB? I have a GPIB-USB cable. I can't readout the flopy disk from the spectrum analyzer in my PC.
Thanks, Ruben

Hi
I have a very old "generic" driver for this one
see attachment
greetings from the Netherlands
Attachments:
hp_network_analyzer.zip ‏408 KB

ADVANTEST 3131A SPECTRUM ANALYZER AND labVIEW

Hello,
Trying to control R3131A spectrum analyzer connected through GPIB-USB-B and my laptop using Labview8.5.
I want to read frequency(Hz) from R3131A,and i want to send my measurments to an exel file ...
I have install the labview 8.5,the Measurment and Automation for finding my instrument and i have download the Advantest R3131A Drivers-libraries from that page .... http://sine.ni.com/apps/utf8/niid_web_display.model_page?p_model_id=82 and then i install it in Instrument I/O>Instrument Drivers palette. I have read the examples code who coming with the drivers but i don't know which example can help me... If someone knows something,or have an example code who doing that or other help,please send a message.. thanks!..

The typical way to make a measurement on any instrument is as follows:
1. setup the instrument for the measurement.
2. carry out the measurement.
3. store result in a file
1. In this case, you want to setup the instrument to carry out a frequency measurement. Although I am not familiar with the Advantest SA, I'm sure it should be similar to the Agilent or Rohde & Schwarz SA. So you first need to set the span wide enough to find the Center Frequency that you want to measure. Then place a peak marker and set the center to the peak value. You then narrow the span in order to improve your measurement. Most likely adjust your resolution (BW) and place a peak marker. You have now setup the instrument for the measurement. The example should contain what you need to accomplish this. Otherwise the user manual should give you the instructions on how to create the commands.
2. You can read the values associated with the marker which will give you the frequency and amplitude. There should be seperate instructions for these. So you can read the frequency by itself. There should be an example of this as it is a very basic measurement.
3. Storing the results... to Excel.. -sigh- Most people refer to Excel, but end up needing to use a different function. In any case, are you writing to an existing Excel Spreadsheet which already has information in it? If not, you can use the "Write to Spreadsheet File.vi".
R

How to read the data in spectrum analyzer (Anritsu MS2661C) and put it in Excel using Labview

Hi all, I'm new to using the labview, and I have some trouble doing my project using the labview software.
I have been trying to use the spectrum analyzer (Anritsu MS2661C) which connect to computer using the GPIB connection.
I have got the instrument driver which can write and control the instrument using Labview 2010.
and my Question is how do read the data or result from the spectrum analyzer and send it to the microsoft excel?
Do I need to use other software or programming to do this step?
If anyone know how is this done, please let me know.
Regards,
Ery

Hi ery,
In order to send data that you have read in from an instrument to Excel, the most convenient way to do this would be to use our Report Generation Toolkit. The Report Generation Toolkit is a very useful tool that allows you to interface to Microsoft Office software from LabVIEW, including Word and Excel. I am not sure if you are familiar with this, but I have attached a link that explains more about the Report Generation Toolkit below.
Another way would be to use the Write To Spreadsheet File VI. While this will store your data to a spreadsheet data file, it will not allow you to programmatically perform any Excel formatting like the Report Generation Toolkit offers. I have also attached a link to some information on the Write To Spreadsheet VI below.
Also, be sure to check out the Example Finder in LabVIEW for a number of examples on how to write data to a spreadsheet file. From LabVIEW, you can go to Help»Find Examples to launch the Example Finder. From there, you can search for "spreadsheet," which should populate examples for use in different applications. I hope this helps, ery. Please let me know if you have any further questions about these!
NI LabVIEW Report Generation Toolkit for Microsoft Office
Write To Spreadsheet File VI
Taylor G.
Product Support Engineer
National Instruments
www.ni.com/support

Spectrum analyzer!

I am trying to make a spectrum analyzer visualization, from sound samples, so I decided to use fast fourier transform to solve it, and here is the code i found on the internet.
public final float[] fftMag(float[] x,int len) {
// assume n is a power of 2
n = len;
nu = (int)(Math.log(n)/Math.log(2));
int n2 = n/2;
int nu1 = nu - 1;
float[] xre = new float[n];
float[] xim = new float[n];
float[] mag = new float[n2];
float tr, ti, p, arg, c, s;
for (int i = 0; i < n; i++) {
xre[i] = x;
xim[i] = 0.0f;
int k = 0;
for (int l = 1; l <= nu; l++) {
while (k < n) {
for (int i = 1; i <= n2; i++) {
p = bitrev (k >> nu1);
arg = 2 * (float) Math.PI * p / n;
c = (float) Math.cos (arg);
s = (float) Math.sin (arg);
tr = xre[k+n2]*c + xim[k+n2]*s;
ti = xim[k+n2]*c - xre[k+n2]*s;
xre[k+n2] = xre[k] - tr;
xim[k+n2] = xim[k] - ti;
xre[k] += tr;
xim[k] += ti;
k++;
k += n2;
k = 0;
nu1--;
n2 = n2/2;
k = 0;
int r;
while (k < n) {
r = bitrev (k);
if (r > k) {
tr = xre[k];
ti = xim[k];
xre[k] = xre[r];
xim[k] = xim[r];
xre[r] = tr;
xim[r] = ti;
k++;
mag[0] = (float) (Math.sqrt(xre[0]*xre[0] + xim[0]*xim[0]))/n;
for (int i = 1; i < n/2; i++)
mag[i]= 2 * (float) (Math.sqrt(xre[i]*xre[i] + xim[i]*xim[i]))/n;
return mag;
but the spectrum looks wrong.

Hi,
You don't show enough of your program for anyone to make a guess at what is wrong! You don't even say what is wrong!
Did you test the FFT you downloaded? Did you test your code on a simple 'sin' wave? It should only take you 15 minutes to write a test of the FFT.
Roger

Spectrum analyzer gpib programming

Hi
I am new in Labview, I am trying to program my spectrum analyzer(MS9710B) through GPIB in a way that I can get the graph same as thing I see on CRT screen of
Spectrum anlyzer. Could you help me what is the first step to start my program?

There is an driver from Anritsu. Go to the main Instrument Driver Network for general information on what a driver is and how to use one. Be sure to start learning LabVIEW first with the basic tutorial.

Communications between LabVIEW and spectrum analyzer

hi, im a beginner in LabVIEW and spectrum analyzer, and im now trying to let LabVIEW captures signal coming from spectrum analyzer. i have all the required components needed but i have totally no idea how to get started, is there any exercises or labs available here?

It will depend on your method of communication with the device. If it is RS232 you can go to the example finder (Help > Find Examples) and search for RS232 or however you plan on communicating with the device. Or you can browse the catagories for examples on various topics.
Depending on the device the manufacturer may have LabVIEW drivers on their web site. But anybody will need more information on the analyzer and the signals before you can be helped.

How to write data which i am reading from spectrum in excel using Report Generation toolkit.

Hello All,
I wrote code for reading data from Spectrum analyzer and also for writing in excel using report generation toolkit. When i run program values get read and excel sheet opens also but i cant see anything written in it.
So if anyone can help me in this i will be very gald. I am attaching screenshot of my program and also attaching .vi file. As i am using drivers you can see some of vi.
Thanking You,
Pallavi
Solved!
Go to Solution.
Attachments:
Channel_Power.jpg ‏123 KB
Channel Power_Toolkit.vi ‏64 KB

Hi Palavi,
you try to select a specific worksheet what is not existing, therefore just select "Channel Power" (and not Power Channel) and it should work for you.
Regards,
Tobias

Can I view spectrum analyzer (HP 8562A) output on LV signalExpress

Hello guys ..
Just wondering if I can get my graphs from spectrum analyzer on LV SignalExpress? Is there a special driver I should download?
Thank you

Hi,
You can view your data from the HP 8562A in LabVIEW SignalExpress by creating a user-defined step. This applies to any instrument not supported by the native SignalExpress steps. To do this, you need to follow the Creating SignalExpress Plug-ins with LabVIEW DevZone.
On a side note, National Instruments has developed some plug-ins, such that a few 3rd party instruments can be controlled through SignalExpress. The plug-ins can be found on this KnowledgeBase. Unfortunately, the HP 8562A is not one of the instruments on this list, nor could I locate a supported driver for the HP 8562A on ni.com/idnet. To communicate with your device, you could use low-level VISA commands or utilize the Instrument Driver Development Wizard.
Let me know if you have any more questions.
Regards,
Sara Lewandroski
Applications Engineer | National Instruments
http://www.ni.com/support

How to capture a .gif file from a spectrum analyzer and save the file in PC

I want to capture a .gif file from a spectrum analyzer and save the file in PC, but I've got a problem when read data from the instrument. I'm not sure how to format the string got from the instrument , When I use "%s" or "%t" as the read string format the data got from the instrument is truncated.
my code are as follows, could anyone tell me where i am wrong?
char resultsArray[5000];
viPrintf(hSpectrumInstr, ":MMEMTORCR 'CICTURE.GIF'\n");
viQueryf(hSpectrumInstr, ":MMEMATA? 'CICTURE.GIF'\n", "%t", resultsArray);
printf("%s", resultsArray);
getchar();
Solved!
Go to Solution.
Attachments:
readResult.docx ‏50 KB

char resultsArray[5000];
viPrintf(hSpectrumInstr, ":MMEMTORCR 'CICTURE.GIF'\n");
viQueryf(hSpectrumInstr, ":MMEMATA? 'CICTURE.GIF'\n", "%b", resultsArray);

Exception thrown while trying to acquire data from Profile Data Control

I created a new WebCenter Portal Application (with JDeveloper 11.1.1.4).
Then tried to acquire data from Profile Data Control through getProfile().WCUserProfile to create a read-only form with profile data.
After deploying (to internal WLS) and running I got a popup saying:
*Exception [EclipseLink-7060] (Eclipse Persistence Services - 2.1.2.v20101104-r8475): org.eclipse.persistence.exceptions.ValidationException Exception*
Description: Cannot acquire data source [java:comp/env/jdbc/WebCenterDS].
Internal Exception: javax.naming.LinkException: [Root exception is javax.naming.NameNotFoundException: While trying to lookup 'jdbc.webcenter.CustomPortalDS' didn't find subcontext 'webcenter'. Resolved 'jdbc'; remaining name 'webcenter/CustomPortalDS']; Link Remaining Name: 'jdbc/webcenter/CustomPortalDS'
The question is how can I create such a data source to acquire data needed?

Hi, there's two ways, in both ways you need use the user <PRE>_WEBCENTER that RCU create.
1 - You can go in your console and create de dataSource, as Yannick sad. You can use your production database if you want get some more real tests, or you can get some develope database and run RCU. You can copy the configuration from you WLS server that are installed webcenter to make this easy.
2 - In develop mode you can just create a database connection name "WebCenter", just like sad here:
http://download.oracle.com/docs/cd/E17904_01/webcenter.1111/e10148/jpsdg_people.htm#BABICGCH

How to measure static phase noise by N4440A spectrum analyzer

Hi, i am new in the RF measurement, and i have to measure the static phase noise, stray and pulse modulation of a DUT, please explain me how to use the spectrum analyzer (N4440A) for this purpose. It will be very helpful for me if you explain the steps for the measurement. Thanks and best Regards

Hi Ikram!
This is Peter Erskine in Applications Engineering. I was not able to find any information on a N4440A Spectrum Analyzer. However, I was able to find information on a E4440A spectrum analyzer. This is a spectrum analyzer developed by Agilent, and you can find the user manual here.
If you are looking to use this spectrum analyzer in LabVIEW, National Instruments has the E4440A instrument driver page that will help you out. If you have any additional questions about how to use LabVIEW with this analyzer, please let me know. I will be more than happy to answer any questions you may have.
However, if you are looking to get help on the spectrum analyzer itself (without the use of LabVIEW), I would suggest contacting Agilent's technical support either by phone or on their forums for additional information.
Have a great day!
Peter E
Applications Engineer
National Instruments

I'm new to the LabView. How do I pass data from VI configured using Serial (CMTS using CLI commands to set Parameters ) to VI configured using GPIB(vector signal analyzer ) to measure such as RF frequency or power on the instrument? Thanks

I'm new to the LabView. How do I pass data from VI configured using Serial (CMTS using CLI commands to set Parameters ) to VI configured using GPIB(vector signal analyzer ) to measure such as RF frequency or power on the instrument?
I just want to set something on the front panel that will execute the Serial parameters first and then pass these settings to vector signal analyzer
Thanks
Phong

You transfer data with wires.
Frankly, I'm a little confused by your question. I can't think of any reason why you would want to pass serial parameters (i.e. baud rate, parity) to a GPIB instrument. Please explain with further detail and attach the code.

Trying to acquire from Spectrum Analyzer CATV measurment​s.

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Trying to acquire from Spectrum Analyzer CATV measurments.