Afonso Teles

Hi Stephen,

2-4 times per second seems about right, you could try using a different interface (like USB or GPIB) and some optimizations but at its core the AFG3000C is not meant for that type of fast configuration.

I'm not sure your assumption about the SCPI command only taking effect on the next trigger is true for all commands, I would certainly suggest you test that assumption before relying on it.

Our newer AFG31000 might be a better fit for your application. Specifically, its sequence mode might be very well suited to what you're doing and might allow you to do it all within the AFG, with no SCPI required, which would significantly increase the speed of the test.

Hi Thom,

Are both MDO3014s setup identically?
It seems you are running a test application on this first MDO3024 that is giving you an issue, what test are you running?

Hi Raj,

You can save your excel sheet as a .csv, open that .csv in ArbExpress and then save it as a .wfm, .tfw or .tfwx to send to your AFG3000.

ArbExpress expects the .csv to be in a given format, so I would suggest first generating a waveform in ArbExpress, saving it as a .csv, opening it in Excel and seeing how it looks, then you can replicate the format for your waveform.

Hi Raj,

The easiest way to generate an arbitrary waveform for the AFG3101C is to user our ArbExpress software and then transfer it to the instrument.

Hi David

The MDO4000 has an 8 bit ADC, so you have 256 quantization levels (actually a little less as a few levels are used for clipping detection).

If you need higher resolution then I would suggest enabling Hi Res to improve resolution as explained here.

Hi Hans,

I certainly understand your disappointment with the instrument, I am working with our product line team to keep fixing these problems.

I have found that pressing "Align Phase" in the "Inter CH" menu fixes the phase alignment issue, at least until you change the phase angle again.
Additionally, from my testing, different waveforms and run modes had less problems with phase alignment, so I'd suggest you try out other settings, if possible.

Hi,

This is likely because you don't have the latest version of TekExpress Ethernet installed, please install the latest version and try again.
Before installing the latest version, make sure you uninstall any previously installed versions.

Hi Hans,

There are known issues with changing phase on the AFG1000.
I've found that upgrading to the latest version (v1.1.0) fixed these issues on my instrument.

Hi,

I have reset those licenses, you should be able to go into your TekAMS account and reinstall them on the MSO64.

Hi Michael,

You cannot upgrade the channel count, you would have to buy a new instrument if you needed more channels.

For the record length increase, you do not have to send it back, it's just a software option.

If you are talking about time multiplexing then you might be well served by our Fast Frame technology, which allows you to quickly capture several events into memory and then analyze them.

It's possible to transfer just 8 bits per point using the wfmoutpre:byt_n SCPI command. I would suggest reading the relevant programmer's manual for more information on this.

The scope will generally have 12 bits per sample for analog channels (unless sampling at max sample rate in which case it's 8 bits) and 16 bits if using a math channel or High Res, but, when transferring through SCPI, you can choose to only transfer the first 8 bits with the previously mentioned command.