Afonso Teles

Hi,

the 4/5/6 series all feature digital triggering, which is crucial to get low noise on a 12 bit system. This allows the trigger to have very low jitter, but it does mean that there is some processing time required.

This ~1 us delay you are seeing is the inherent delay of the digital trigger process, it cannot be reduced further.

Hi James,

From the information you have given, it appears those features you listed (except 3-BW-100 and 3-SA1, which come standard) are only available to you as a 30 day demo and will be deactivated once those 30 days are up.

If you have bought those features and believe this 30 day warning is a mistake, I ask that you submit a ticket (make sure you include your model and serial numbers) here: https://www.tek.com/en/support/contact-technical-support
We will help you activate the features you purchased.

While it may be possible to physically reattach the probe tips that broke off, we cannot guarantee the probe will meet our specifications following the repair.

A repair that meets the specifications would be particularly difficult for performance probes, like the TriMode probes, due to their demanding bandwidth, noise and measurement precision specs.

Heat damage, signal path aberrations, thermoucouple effects, and other small defects in the repair may compromise the signal.

For all these reasons and more, we advise customers to fully replace broken probe tips, so as to maintain measurement confidence.

A client asked the following question:
 

Hi Anatoliy,

Unfortunately, we currently only provide the Allan deviation measured at 10 seconds with the time-base references we provide, as you found in the datasheet.
The measurement floor of the instrument is not provided directly.

So, the instrument is not currently specified for such high stability measurements. You might still be able to use it for your measurement, but you will have to test the measurement floor of your FCA+external reference setup yourself.

Hi Howard,

Indeed, that is an interesting implementation. I don't have a BASIC environment setup to try it out, but here are my guesses, in rough order of likelihood:

1) It's sending the array out as bytes but they are being read by the AFG as 16 bit words. This would result in a waveform that is half the number of points expected.
2) It's writing the array as bytes and they are being read as bytes (for a reason I do not fully understand). This would result in a correct number of points.
3) It's (for some other hidden reason) writing the array as 16 bit words (upscaled bytes) and so they are read in properly.

All of these depend on intricacies of the BASIC language, with which I am not familiar with.

Hi Howard,

Both the AFG3000 and AFG31000 have 14 bits of resolution.

Waveform data is often stored as 2 bytes per point, i.e. a 130k point .tfwx file will take up about 260k bytes.

Hi,

The feature for transferring waveforms over 131,072 points is currently under development, but should be coming out soon.
Until then, there is a workaround which involves breaking up your waveform into chunks smaller than 131k points, transferring them over and then stitching them together in the sequencer. This can be automated through a remote control script, if needed.
Loading a file over 131k points from a flash drive also works.

Bonus round:
There isn't a command to remove the waveform loaded in edit memory (EMemory), as far as I know. You could set it to an empty waveform (1000 points of all zeros is the default).
There's also MMEMory:DELete, which deletes a file in mass memory (MMemory).

Some wonderful work there Giovanni! I appreciate your personal stories of how you came in contact with some of these instruments too.

Any plans to get this in print? Would make a great coffee table piece!

Hi,

It's unclear what model of oscilloscope you're using.

If it's a 4, 5 or 6 series then please try this guide: https://www.tek.com/en/support/faqs/how-do-i-set-network-drive-my-5-series-mso-or-6-series-mso

If it's an MDO3000 or MDO4000C, please try this guide: https://www.tek.com/en/support/faqs/how-do-i-mount-network-drive-my-mdo3000-or-mdo4000c-oscilloscope