niRFSG write arb waveform error

[margarette]

Hello, I'm trying to transmit an RF Signal. I'm using the NI PXIe-5611 as the resource. But when I run the program, an error shows in the front panel. It says that the PLL could not phase-lock to the external reference clock. I attached the screen shot of the error. What is the source of the error and how can I solve it? I also attached the picture of the connection of the modules. Thank you.

[Eric_L]

Hello Margarette,

If you have not found a solution yet, there are a couple of reasons why you may be getting this error

1) The 10/100MHz backplane clock may be bad

2) Cabling may be damaged

I have found another discussion forum documenting a bad cable creating the same error that you are experiencing. Please have a look at the link below for the reference

http://forums.ni.com/t5/RF-Measurement-Devices/DAQmx-error-200245/m-p/751531

Eric L