07-20-2006 05:32 AM
07-21-2006 02:27 AM
the Problem is the preamplifier. With high sampling rates, it could be possible that he is to slow to switch between the different gains. If you try this example:
do you see the same behaviour? If yes, best would really be to use a second device. Synchronism is not that diffcult. With PCI-devices you can use a small cable, called RTSI. With this cable you can exchange the sample clock easily. Best would be to call National Instruments for product consulting.
07-21-2006 02:38 AM