Acquire continuous waveforms from two channels on a scope

[arielsl\]

Hello,

I want to acquire a continuous waveform on each separate channel on my scope, and to see each waveform on it's own graph.

I tried to do it, you can see the VI that I uploaded...

The problem is whan I run the VI - it works, but each graph refreshs in it's time and it doesn't happen simultaneously.

It's a problem because it creates a situation that I can loose a waveform because while one graph is refreshing the other one is not refreshing.

What can I do?

[Coq_Rouge]

You are using serial communication. This sort of communication is very slow. So I doubt you will not get much data in real time. You are probably only getting segments of the realtime curve.

[arielsl\]

No, I use usb for the communication.

What can I do?

[Dennis_Knutson]

You can't do anything. You are seeing a basic limitation of the instrument. Have you considered a pc scope card?

[arielsl\]

Are you sure?

Because I think my scope is pretty good...

I have Tektronix TDS2024B, this is the datasheet: http://www.tequipment.net/pdf/tektronix/TDS2000B_datasheet.pdf

[Dennis_Knutson]

Yeah, i'm sure. Have you read the manual? Have you found a command that transfers both channels at once? If you have, use that command.

[arielsl\]

Yes, you are right.

Thanks...