ufx-ber-70: Changing Noise Band Width (NBW) via GPIB

[qsa301]

Hi All,

I have a NOISE COM's UFX-BER series noise generator and I am trying to set the Noise Band Width (NBW). I have gotten the driver for it from NI website and was trying to set the NBW using GPIB interface. Usually if we want to set C/N(which is signal to noiser ratio) to 10, we write it using ufxBer_write_data ("RATIO=10", 8), or Signal Band Width (SBW) to 30MHz, we write ufxBer_write_data ("SBW=30", 6),  but I don't know how to change NBW, I tried doing ufxBer_write_data ("NBW=30", 6), but it didn't work . On the instrument we can change it by turning the "Mode" knob to Eb/No and then hit Shift+. on the Noise Generator and then enter our value. Any suggestions??

Thank you in advance!!

[pflores]

Hello qsa301,

Do you have a programmer's manual for your instrument, I have been unsuccessful in finding one on Google.

It seems like you have some functionality working, so the drivers are doing their job. We should consult the manual for the proper command to change the NBW and verify that your instrument supports this.

Also, are you using a GPIB interface? Are you using LabVIEW to program? Can you provide a link to the drivers you are using?

Regards,