Test and Measurement Forum

Signal interference when using ADC-100 and Win-XP

Post general discussions on using our drivers to write your own software here

Signal interference when using ADC-100 and Win-XP

Postby Jorgen » Tue Jan 06, 2004 3:11 pm

Hi all,

I have a problem with signal interference when using a C++ program and a ADC-100. The signal sometimes (can't always be reproduced) becomes noisy when a program (e.g. Internet Explorer 5.0) runs in the background. This is only observed on computers running XP and not on Win-2000.

The same problem is observed using a LabView program also using Win-XP.

Any ideas or solutions of this problem??

Regards Jørgen

Postby markspencer » Wed Jan 07, 2004 9:24 am


What does the signal look like normally when using Picoscope on the XP machine. If it looks noisy try the adapter and check that it has been registered:

Help | About - it should be 'Use Adapter' if not use the following patch in File | Set up | Convertor


If the signal is fixed then you will have to use the adapter for the c++ program as well. To do this place the following into the win.ini file:


Best regards,

Mark Spencer
User avatar
Site Admin
Site Admin
Posts: 598
Joined: Wed May 07, 2003 9:45 am

Postby Jorgen » Wed Jan 07, 2004 9:30 am

Hi Mark

Actually we are using a ADC-101 (a 100 with buildin adaptor) and I added the modifications to the win.ini file. So there is nothing wrong here.

Regarding the signal, it is nearly stable without a program running in the background, but when we start e.g. IE, the signal sometimes becomes much more noisy.


Return to General Software Discussions

Who is online

Users browsing this forum: No registered users and 0 guests