08-13-2017 04:05 PM
Hi,
When I set some sample rates for USRP N210 and check the actual sample rates, some of them show the same values of my settings, but other of them show a little different values. For example, when I set 3M, the actual sample rate is 3.030303M, set 3.5M, the actual rate is 3.448275M, and set 1.5M, the actual rate is 1.492357M. But when I set 1M, 2M, 4M, 4.5M and 5M, the actual rates are the same.
I don't know why. And I think when the actual rate is different from my setting, the transmit signal may not be what I design.
Can anyone help me? Thank you very much.
NovaQ
Solved! Go to Solution.
08-14-2017 08:45 PM
Hi, could you please tell me how do you check the actual sample rates?
08-14-2017 09:21 PM
Hi, I use the niUSRP Configure Signal Vi to see the coerced IQ rate.
According to the link: http://www.ni.com/documentation/en/labview-comms/1.0/usrp-node-ref/niusrp-configure-signal/, coerced IQ rate is the actual IQ rate.
08-15-2017 06:07 AM
OK,I got your question.In fact each device has accuracy, and if the error is within the accuracy range, we consider it reasonable. The absence of such an error does not have a specific condition or situation. So you find this situation is normal, and it will not affect your operation.