FM modulation

[chris_amadasun]

Hi Judy,

I know why you are seeing this error.

The error tells you why this is the case. The AWG is waiting for data but the hard drive cannot stream the data fast enough.

You can try to increase the system RAM on your PC or PXI embedded controller. Also using a hard drive that has faster write and read speeds such as RAID drives will help, otherwise your remaining option is to decrease the IQ rate.

[Siew Hong]

Hi, Chris.

Thanks for the prompt reply.

I have tried using different duration of recorded samples done at 12.5M S/s.

I did not face any problem for the 1 minute duration. However, I encountered another error for the 5 mins and 10 mins duration.  Attached below is the screenshot. What do you think is the problem?

Beside that, in your opinion, do I need to change the default value for "Write Block Size in Samples" and Streaming Waveform Size in Samples for different duration of recorded samples?

Thanks and Regards,

Judy Tan

[chris_amadasun]

Hi Judy,

Let me try to replicate this issue. Can you attach your file in a reply to this. Also what RFSG device are you using?

Thanks

[Siew Hong]

Hi, Chris.

Are you referring to my recorded NI binary file?

I afraid that I can't upload it, beside, it is about 10 gigabtyes in size.

I am using PXI-5610 for the upconversion.

Regards,

Judy Tan

[Siew Hong]

Hi,

I have a problem of upconvert a recorded signal to RF. So far, I have tried the recommendations from the engineer.

The solution is to use the RFSA Arbitrary Waveform Streaming.vi code which resides within the LabVIEW 8.6 program folder.

I did not face any problem for the 1 minute duration. However, I encountered error for the 5 mins and 10 mins duration.

Can anyone help me on this area?

Thanks and Regards,

Judy Tan