Spectrum Analyzer with NI-6111

I am trying to build a two channel (simultaneous) spectrum analyzer using Labview 7.0 and the PCI-6111 DAQ. I can make one channel work but it is very slow, but cannot find a method to acquire the second channel while the first is running. Are there any samples that might be useful? Attached is what I have so far. Is there anything I can do to speed it up? Any suggestions are GREATLY appreciated.
Attachments:
Acquiring_a_Signal_with_FFT_&_DAQ_&_THD_&_OCTAVE_&_TAB_&_CASE.vi ‏452 KB

I've attached an example that I've thrown together that acquires from two channels and performs an FFT of one or both channels (selectable). I didn't have a problem performing frequency analysis on multiple channels simultaneously. One thing to keep in mind though -- the more analysis you do while performing buffered acquisition, the more likely your CPU will run into trouble with transferring data. I hope my example helps.
Regards,
Todd D.
Attachments:
Example.vi ‏201 KB

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Spectrum analyzer with sim and DAQ IV File

Hello..
i have a project that i need to design a Spectrum analyzer with simulation mode and DAQ option. ( so you can generate input signal from LabView and DAQ.
all i look for is a modern Spectrum anlyzer VI file for reference and education purposes
i know there are examples out there in LabView but, i need a modern one with a lot of options and features ( like Impulse respond, marker... filters.....)
there is something i found here on the website, it happen long time ago, and some proffessor from Vietnam created such project. its not with DAQ, but its great for me.
here is the link:
http://digital.ni.com/worldwide/singapore.nsf/web/all/42B390E4624228D486257249001A5349
this kind of Spectrum anlyzer looks great
most appreciate for any help

Hi Eldad,
Thanks for posting and welcome to the NI forums!
The
application you have linked uses LabVIEW to control a Tektronix TDS220
over RS232 (a.k.a. serial port). The TDS220 has a 1GHz sample rate
with a 100 MHz bandwidth--the specs on our DAQ devices don't go nearly
this high, our High Speed Digitizers
would be a better option if you need something comparable. Also, the
programming of the two devices (TDS220 vs. DAQ) is going to be quite
different, so I am not sure how helpful the code from the link would be
for your application. I don't have access to the code or permission to
post it here, but you could always try contacting the original author
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date or not). Again, I'm not really sure how helpful the code would be
for you.
You might want to take a look at the following example to see if it does what you need:
NI-DAQmx: Benchtop Spectrum Analyzer
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going to:
Help >> Find Examples... >> Hardware Input and Output >> DAQmx
There
may not be a ready-made example that will do everything that you
require, but the above should give you a good starting point for
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to the forum and we'll be more than happy to help out.
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Spectrum Analyzer with Tracking Generator - do I have what it takes?

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Hi
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Attachments:
hp_network_analyzer.zip ‏408 KB

E4402B Spectrum analyzer driver and sample programming

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Agilent Spectrum Analyzer USB Issues

We are using an Agilent N9320 Spectrum Analyzer with USB communication.
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Are you using the driver from the link below to control your device?
http://sine.ni.com/apps/utf8/niid_web_display.download_page?p_id_guid=60ED9B6E489D2045E0440003BA7CCD...
What version of NI-VISA do you have installed?
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http://www.ni.com/support

I Need some info about interfacing the PC or laptop to Spectrum analyzer using Labview

we need to control the spectrum analyzer using an interface that will be developed using Labview .
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Pls send some info regarding dis.

Using a spectrum analyzer with LabVIEW is a pretty common application, my first program 15 years ago did this. What we need to know to help you though is what model spectrum analyzer are you planning on using? Most of the ones I'm familiar with use the GPIB interface rather than RS232, but that isn't a major issue, the spectrum analyzers command set is the important one. There are a lot of LabVIEW drivers available for a larger number of analyzers, here on the National Instruments' site. Although most use the GPIB interface (or ethernet), they can be used as a starting point to develop an RS232 driver if one isn't available, assuming that there is a driver for the model that you have, or a closely related one (manufacturers frequently use similar command sets within a model type).
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Certified LabVIEW Developer
Senior Test Engineer
Currently using LV 6.1-LabVIEW 2012, RT8.5
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"agesani Initialize With Options" timeout error on HP E4401B spectrum analyzer

System: Windows XP Pro, LabVIEW 7.1, IVI Compliance Package 3.0, NI-VISA 4.1
I have an HP E4401B Spectrum Analyzer. I'm trying to write some LabVIEW code for it, using the agesani.llb library.
When I try using the agesani Initialize With Options VI, I get the following error:
Error code: BFFF0015
Source: agesani Initialize WIth Options.vi<ERR>Driver Status: (Hex 0xBFFF0015) Primary Error: (Hex 0xBFFF0015) Timeout expired before operation completed.
I've searched the NI Knowlege Base, and haven't found anything that seems useful. What I _have_ found are the following items.
Knowlege Base article "Time-Out Error with the Agesa Instrument Driver Example". This refers to the agesa drivers, not the agesani drivers. It also references an E4440A spectrum analyzer, not an E4401B. The article says one cause could be that a compatibility mode other that SCPI is in use. While the articles says how to fix this on an E4440A, the fix does not appear to apply to the E4401B. In fact, if it is even _possible_ to have a mode other than SCPI on an E4401B, I can't figure out how to do it. A second possibility the article suggests is that the spectrum analyzer is in Phase Noise mode rather than Spectrum Analyzer mode. My E4401B is in SA (spectrum analyzer) mode. I don't even see a way to put it in any other mode - I don't think the required options are installed. Finally, my VI is configured as the article states - ID Query YES, Reset Device YES, etc. I should note that the instrument's GPIB address is 18, and that this matches the resource name GPIO0::18::INSTR.
Some additional information: The spectrum analyzer's screen is indicating the instrument is in Remote (R) mode as a Talker (T). A "Query UNTERMINATED" error message appears at the bottom of the instrument screen.
I've attached the results of a NI Spy capture to this message. (At least, I think I have. I've never tried doing this before, so if it doesn't show up, would some kind soul tell me how to include an attachment to my post?)
Oh, yes. The agesani version is driver version 1.1, updated 17 Aug 2007. (The version that's currently on the NI download site.)
Attachments:
Capture4.spy ‏9 KB

Hi MXI Master,
If there's an instrument timeout, I haven't been able to find it yet. Seems like there should be, so maybe I just haven't looked in the right place yet. As for the timeout value on the computer, I'm not sure what you mean by this - could you elaborate, and maybe tell me where to find it?
As far as SCPI mode, if it's possible to put the E4401B in something _other_ than SCPI mode, I haven't figured out how. I can't find any support in the programming manual for anything other than SCPI.
That kind of seques into my next couple points. The NI Spy output indicates that one of the commands that is being sent is "*SRE 32".
The "User's & Programmer's Reference" for the E4401B says (on page 206) "Send the *SRE <number> command (where <number> is the sum of the decimal values of the bits you want to enable plus the decimal value of bit 6). [Bit 6 is the Request Service (RQS) Summary Bit. BP] For example, assume that you want to enable bit 7 so that whenever the operation status summary bit is set to 1, it will trigger a service request. Send the *SRE 192 (128 + 64) command."
This statement would seem to imply that the "*SRE 32" command that is being sent by the agesani "Initialize With Options" command is an illegal command, or at best an ineffective command. In light of that, it is interesting to me that the NI Spy output indicates that the next line , viQuery(GPIB::18::INSTR (0x246E9C8), "%s?","%ld"), is generating an 0xBFFF0015 error. In addition, I can find neither the "%s?" nor the "%ld" commands listed in the Programmer's Reference. I wonder if these could be for a firmware revision later than mine (A.01.03), or for instrument options I don't have (A4H, A4J). Alternatively, I wonder if these are simply mistakes.
The next line in the NI Spy output, Formatted viWrite(CPIB0::18::INSTR (0x0246E9C89),"INST:NSEL?",11,11), also puzzles me. The Programmer's Reference indicates that this is a supported command, to see what instrument application is currently selected. (e.g. spectrum analyzer, GSM, Bluetooth, EDGE, noise figure, etc.) However, when I try to issue this command to my instrument, by using the Instrument I/O Assistant Express VI, I get an "Undefined header" error on the instrument's front panel. The instrument's error history shows the same "Undefined header" error. Since my instrument only has the basic spectrum analyzer option installed, I wonder if this command is not valid? (Personally, I wouldn't write instrument firmware code this way, but who knows?) Alternatively, I wonder if this command requires a firmware revision more recent than mine. (The Programmer's Reference is silent about this possibility.)
The next line in the NI Spy output, Formatted viRead(GPIB::18::INSTR (0x0246E9C8),"",4000,0), has another 0XBFFF0015 error associated with it.
Does this information shed any more light on the situation?

Premiere Pro Equalizer with Frequency Spectrum Analyzer?

hi everyone, does anyone have the 411 on how to get a visual spectrum analyzer working with any of the Premiere Pro audio EQ's>? There is a very nice EQ in the audio effects of Premiere, but when i play my files, the playing frequencies are not displayed on the EQ interface ... it's one thing to adjust the EQ by ear, but it would be really helpful to SEE what frequencies are blown out or what have you.
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I think you will have to use audition for that

Iberr = EABO(6) with spectrum analyzer

hello every body
I am new user of labview, I sucess to make the connection between a PC and SPECTRUM ANALYZER R3361C but I cannot read or write data from SPECTRUM. In addition, I tried all the value of time out I dont success to read and write.
After l'execution, I have this message
iberr = EABO
EABO indicates that an I/O operation has been canceled, usually due to a timeout condition after a GPIB read. Before reading from the instrument, verify that the GPIB command you are sending is understood by your device and instructs it to place data in its output buffer.
Please Help Me
best regards.

The first thing to know is whether you are using an NI GPIB board? If you are, I'm assuming that you have already tested it in MAX (Measurement & Automation Explorer). After that, did you right click on the board under devices and interfaces and select 'Scan for Instruments'? Does your instrument appear in the list over on the right side of the screen? If it does, is there an instrument description present or does it say something like 'instrument did not repsond to *IDN? query'? If MAX fails to find the instrument, is there another instrument you can connect to determine whether the cable or GPIB board is faulty? If another instrument works, check the manual for the 3361 and see if there is something that needs to be turned on to enable GPIB communication. Some instruments have a menu item that needs to be enabled first. If all of this works, then you can attempt to communicate to the instrument. I have no experience with the 3361 and cannot find it on Advantest's web site. It is the Avantest spectrum analyzer isn't it? If the instrument did respond to the *IDN? query, and you can't get it to repsond to others, then you have a problem with the actual commands you are sending or with the way the instrument is setup.Message Edited by Dennis Knutson on 10-09-2006 07:29 AM

Interfacing labview 8.5 with spectrum analyzer

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Solved!
Go to Solution.

Why don't you tell us what you do know so we can better help you out? Do you know how to hook up the spectrum analyzer? Make/model of the spectrum analyzer? Do you know how to use it manually? Do you know what a spectrum analyzer is for?
I know some of these questions might sound almost insulting, but we have to establish a baseline so we know how much help you need, and how much detail to include.
Bill
(Mid-Level minion.)
My support system ensures that I don't look totally incompetent.
Proud to say that I've progressed beyond knowing just enough to be dangerous. I now know enough to know that I have no clue about anything at all.

Repaints bumpy with spectrum analyzer component?

Hi everyone,
I have created a spectrum analyzer component for the MP3 player part of my open source application Playlist Editor. It works quite well but I currently struggle with some strange paint 'behaviour'.
The component constantly paints amplitude values for a number of frequencies during playback. But although repainting is controlled by a Timer object so that repaints are equally distributed over a given time interval the repaints are done quite bumpy, even with more than 30 repaints per second.
I have done plenty of testing without finding an explanation or solution. I finally prepared a preview of the appliciation with all sources included and a detail description of the issue.
Perhaps I made a completely trivial mistake and there is a simple way of doing the painting differently?
Anyone interested in looking into the component could you please visit http://www.lightdev.com/page85.htm and give it a try?
Your help is most appreciated. Thank you for any help!
Ulrich

I think something in the rendering
cycle must be programmed incorrectly,well, that is what I try to locate...; here is what tests have proven meanwhile
java.util.Timer is not accurate enough to trigger repainting at a constant rate faster than approx. 300-500 ms
with an own timer using the new System.nanoTime() method it is possible to call a method more exact, for instance every 150 ms or even every 10 ms
a call to drawImage takes approx. 0.22 - 0.25 milliseconds
calling drawImage more often than every 150ms does not lead to faster repaints so far (i.e. paints are done approx. every 150ms although drawImage is called more often)
the rendering of such a small component
should also be able to reach at least 10 FPS
(possibly even 50-60 FPS)that is what I got from the document too, but the question is whether or not this can be done with 'normal' calls to paint() or drawImage() or whether there is another mechanism one can/has to use inorder to exectute calls to redraw an image more direct/imediately....
from the other test figures it shows that neither the FFTs nor other computing inside the application take so much CPU load that it would be necessary to put these functions out for testing. There is plenty of CPU time left for faster painting but something stops the calls to drawImage from being executed faster than approx. every 150ms
I'll keep everyone posted with new results but still anymore insights to painting and especially some more direct painting is most welcome!
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Digits truncated in GPIB read with HP 8593 spectrum analyzer

When I read the information from the HP spectrum analyzer, only the first digit is read .
It works fine with other instruments

Can you provide some sample code of what you are doing?
What instruments does it work for?
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[email protected]

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?
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Regards,
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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.
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NI LabVIEW Report Generation Toolkit for Microsoft Office
Write To Spreadsheet File VI
Taylor G.
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National Instruments
www.ni.com/support

Spectrum Analyzer with NI-6111

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