what is the start frequency for the digitizer 5142

[Ahmed.Abdulbaky]

Dears,

what is the start and stop frequency of the digitizer 5142 which is 100MS/s?

[Chris_G.]

Hello Ahmed.Abdulbaky,

When you say “start” and “stop” frequencies, I assume that you are inquiring about the maximum and minimum sampling rates of the 5142 digitizer.  Is this correct?  If so, then take a look at page 13 of the NI PXI/PCI-5142 Specifications, and you will see under Real-Time Sampling that the minimum and maximum sampling rates are 1.526 kS/s and 100 MS/s, respectively.

To answer your question from your other post, yes, you can change the sampling rate of the digitizer through the NI-SCOPE API.  If you are using LabVIEW with the device, there is a VI called “niScope Configure Horizontal Timing.vi” that you can use to set the sampling rate, by wiring the desired sampling rate to the min sample rate input.  This VI can be found in the functions palette under Measurement I/O » NI-SCOPE » niScope Sonfigure Horizontal Timing.vi. 

[Ahmed.Abdulbaky]

thank you for your reply to my post,

but Really Want to Know the Start and Stop Frequency (IF) Which this Digitizer Can receive it at its Input Channels

Best Regards

[Song_M]

Hey Ahmed!

The IF range is listed in the chart below for the 5142

 

Message Edited by Song_M on 01-14-2009 05:48 PM