Nishad,
As the
specifications of the 5422 mention, you can only have spans of ±50% of Amplitude Range with increments <0.0028% of Amplitude Range. This is a hardware limitation that is for this particular board. For low frequencies and speeds, this might be something that you can accomplish programmatically.
Hope that helps.
Regards,
Message Edited by Raajit L on 06-28-2007 09:44 AM
Raajit L
National Instruments