Thread: 64997A Agilent Spectrum Visualizer HELP!!!


Permlink Replies: 14 - Pages: 1 - Last Post: May 2, 2012 5:35 AM Last Post By: algoss
Willco788

Posts: 110
Registered: 05/28/11
64997A Agilent Spectrum Visualizer HELP!!!
Posted: Apr 24, 2012 3:09 PM
Click to report abuse...   Click to reply to this thread Reply
Is there anyone at Agilent that can help me with this software?
algoss


Posts: 576
Registered: 11/03/06
Re: 64997A Agilent Spectrum Visualizer HELP!!!
Posted: Apr 25, 2012 5:32 AM   in response to: Willco788 in response to: Willco788
Click to report abuse...   Click to reply to this thread Reply
Have you tried your local Technical Call Center? From your tone, I'm guessing that you have and were not happy with the answers you got.

This is a brand new product, just showing up about 2 weeks ago. It was originally written for a specific customer who needed these capabilities on an Infiniium scope. I know the developers and tested an earlier version of it, when it had a different name.

There are very few people inside Agilent who have used it, and many who don't even know it exists. I normally install everything on my Infiniium Scope, but I haven't installed it yet. Maybe today. While I'm at it, I'll install it on my laptop, for use with my Infiniivision scopes.

IIRC, from another post, you are using a trial copy with an MSOX3000 scope of some sort. The error message had something to do with scope image corruption. If you could post more information about your environment and your problem, I'll see if I can get a setup that will duplicate the problem.

Al
Willco788

Posts: 110
Registered: 05/28/11
Re: 64997A Agilent Spectrum Visualizer HELP!!!
Posted: Apr 25, 2012 7:50 AM   in response to: algoss in response to: algoss
Click to report abuse...   Click to reply to this thread Reply
I was able to get the software to work. My first problem a bad firmware load. Due to a bad thumb drive, 2.12 on my dsox3024 was corrupt. I had to download a new copy on another thumb drive and reload into the scope.

There are some issues with ASV and I would like to contact the person and give them my input. There are some improvements and issues that need to be addressed. Last night, burning the midnight oil I came to the conclusion that the scope's FFT measurement works a lot better than the ASV software on the other hand, the scope can't draw a waterfall display.
algoss


Posts: 576
Registered: 11/03/06
Re: 64997A Agilent Spectrum Visualizer HELP!!!
Posted: Apr 25, 2012 10:55 AM   in response to: Willco788 in response to: Willco788
Click to report abuse...   Click to reply to this thread Reply
I got ASV working on my laptop this morning, then had a long talk with the designer. If you have ideas, questions, etc., add them to the thread, and I'll either pass them along, answer them, or get them answered, whichever is appropriate.

Note that ASV was written primarily for the education market, to provide a simple, 'spectrum analyzer' display, and as such, the nomenclature, etc. is somewhat different than typical scope nomenclature.

The designer did tell me that you should make sure you have the latest version of ASV, 1.09.0004, which just went on the web yesterday. It fixes a few things.

Al
Willco788

Posts: 110
Registered: 05/28/11
Re: 64997A Agilent Spectrum Visualizer HELP!!!
Posted: Apr 26, 2012 7:32 PM   in response to: algoss in response to: algoss
Click to report abuse...   Click to reply to this thread Reply
Version 1.09.0004 saves some of the settings but the frequency and span revert back to the default settings.

I don't see a button or a menu to refresh the spectrogram.

I don't like the way the marker is placed over the waterfall. It looks like a wall and it covers a large portion of the waterfall. There must be a better way. I would have simply changed color on a few pixles at the frequency where the marker is positioned. As the waterfall updates, the marker color would set the pixle at the next time slot. When the marker is tiurned off or moved, the previous pixles would remain the same color but the new marker position would change the color in the next diagonal line of pixles. That way when you enable the mouse rotation, your not rotating that huge wall.

Edited by: Willco788 on Apr 26, 2012 7:35 PM
Willco788

Posts: 110
Registered: 05/28/11
Re: 64997A Agilent Spectrum Visualizer HELP!!!
Posted: Apr 27, 2012 7:55 AM   in response to: Willco788 in response to: Willco788
Click to report abuse...   Click to reply to this thread Reply
Attachment Spectrum.bmp (1,012.6 KB)
I prefer this, The white lines represent the marker positions. The original position and where it was moved.

Edited by: Willco788 on Apr 27, 2012 7:55 AM
Willco788

Posts: 110
Registered: 05/28/11
Re: 64997A Agilent Spectrum Visualizer HELP!!!
Posted: Apr 27, 2012 10:15 AM   in response to: Willco788 in response to: Willco788
Click to report abuse...   Click to reply to this thread Reply
Attachment error.bmp (81.9 KB)
Sometimes (not always) when I launch ASV, I get this message. It happens when I turned on the computer and launch the program for the first time. The second time I launched it, it ran OK. Yesterday 109004 wouldn't run at all and the same message popped up. For the problem to clear, I had to uninstall and reinstall it.

Edited by: Willco788 on Apr 27, 2012 4:09 PM
algoss


Posts: 576
Registered: 11/03/06
Re: 64997A Agilent Spectrum Visualizer HELP!!!
Posted: Apr 27, 2012 1:43 PM   in response to: Willco788 in response to: Willco788
Click to report abuse...   Click to reply to this thread Reply
Attachment ASV 1Hz.PNG (122.1 KB)
I have a newer internal version that fixes a lot of issues. It will probably get put on the web in the next few days.

  • Save/Restore now works

  • The RBW can get down to 1HZ

  • The Marker in the waterfall isn't fixed yet, but it will be. I passed on your picture of a different way to do the marker

  • The spectogram gets cleared if any settings are changed.

  • I saw the exception, but it's not repeatable. I saw it the first time I ran the newer version, but not since then.

Al
Willco788

Posts: 110
Registered: 05/28/11
Re: 64997A Agilent Spectrum Visualizer HELP!!!
Posted: Apr 27, 2012 4:06 PM   in response to: algoss in response to: algoss
Click to report abuse...   Click to reply to this thread Reply
When I re-installed ASV there was a message that said something about updating .NET Framework but I wasn't sure if it was needed.

The 1Hz RBW is nice and I can't wait to try it. The problem is, I only have a few days left on the license and it's the weekend.

Edited by: Willco788 on Apr 27, 2012 4:06 PM
Willco788

Posts: 110
Registered: 05/28/11
Re: 64997A Agilent Spectrum Visualizer - Who do the FFT?
Posted: Apr 28, 2012 1:42 PM   in response to: algoss in response to: algoss
Click to report abuse...   Click to reply to this thread Reply
Back in the early 90's I worked with another engineer on a DSP project where I wrote a program to display an FFT on a computer screen. I used Visual Basic to calculate the FFT and it was very slow. Later the FFT was done at the DSP and the data was transfered to the PC where it only had to draw a graph. It was alot faster but because at that time we were using a P4 and Win 3.0, it was still slow.

My question is who's doing the FFT? The scope or the PC?

Edited by: Willco788 on Apr 29, 2012 6:57 AM

Edited by: Willco788 on Apr 29, 2012 7:01 AM

Actually it was a P1 running Win 3.0 the P4 came later but by the time the dual cores were available, the project was scrubbed.

Edited by: Willco788 on Apr 30, 2012 11:02 AM
algoss


Posts: 576
Registered: 11/03/06
Re: 64997A Agilent Spectrum Visualizer - Who do the FFT?
Posted: Apr 30, 2012 5:12 AM   in response to: Willco788 in response to: Willco788
Click to report abuse...   Click to reply to this thread Reply
All of the math is done in the PC. The bottleneck is getting the data out of the scope. The Infiniium version of this SW runs much more quickly.

Al
Willco788

Posts: 110
Registered: 05/28/11
Re: 64997A Agilent Spectrum Visualizer - Who do the FFT?
Posted: Apr 30, 2012 7:45 AM   in response to: algoss in response to: algoss
Click to report abuse...   Click to reply to this thread Reply
One advantage of a new computer especially if your using an I5 or I7, is that the processing speed is as fast or faster as a TMS320C50 DSP. Back then, that's the one we used.
algoss


Posts: 576
Registered: 11/03/06
Re: 64997A Agilent Spectrum Visualizer - Who do the FFT?
Posted: Apr 30, 2012 9:51 AM   in response to: Willco788 in response to: Willco788
Click to report abuse...   Click to reply to this thread Reply
Like the old saying from Drag Racing, "Ya run what ya brung." I have access, this week to:
  • Laptop w/ Intel T9600 @ 2.8G CPU PassMark 2015
  • Laptop w/ Intel T7200 @ 2.0G CPU PassMark 1143
  • Infiniium w/ Intel E8400 @ 3.0G CPU PassMark 2248

I also have use of an AXIe embedded controller with an Intel Xeon L5518 @ 2.13GHz PassMark 9005, but it's at a customer right now. I'll give it a try when I get it back.

Since I think the bottleneck is in the data transfer, I don't think a different CPU will make a lot of difference, but we'll see.

Al
Willco788

Posts: 110
Registered: 05/28/11
Re: 64997A Agilent Spectrum Visualizer
Posted: May 1, 2012 8:31 PM   in response to: algoss in response to: algoss
Click to report abuse...   Click to reply to this thread Reply
Burning the midnight oil I downloaded 1.09.0006. At 1Hz RBW it's slow! But that's the nature of the beast. It does save the settings but there is something, at least for me, that's annoying. Normally when I'm using the math FFT measurement, I always configure the channel input for DC/50 Ohms.
Every time I launch ASV, it defaults to 1M Ohm. You would think since it's a spectrum software, it would default to 50 Ohms. If your not paying attention to your scope settings or if your operating the scope remotely, there's no way to set or even determine the impedance and the measurement is off by 6 db.

The waterfall marker wasn't fixed.
algoss


Posts: 576
Registered: 11/03/06
Re: 64997A Agilent Spectrum Visualizer
Posted: May 2, 2012 5:35 AM   in response to: Willco788 in response to: Willco788
Click to report abuse...   Click to reply to this thread Reply
Willco788 wrote:
Burning the midnight oil I downloaded 1.09.0006. At 1Hz RBW it's slow! But that's the nature of the beast. It does save the settings but there is something, at least for me, that's annoying. Normally when I'm using the math FFT measurement, I always configure the channel input for DC/50 Ohms.
Every time I launch ASV, it defaults to 1M Ohm. You would think since it's a spectrum software, it would default to 50 Ohms. If your not paying attention to your scope settings or if your operating the scope remotely, there's no way to set or even determine the impedance and the measurement is off by 6 db.
Yes, when you get enough depth to get down to 1Hz RBW, data gathering and processing will take a while. I'll pass along the comment about changing the input settings. I agree that the SW should do the minimum necessary to make the measurement.

The waterfall marker wasn't fixed.
I'd prefer to say it wasn't changed. There have been other inputs, from other testers, and customers. Discussions are ongoing.

Point your RSS reader here for a feed of the latest messages in all forums