How can I generate Amplitude Modulated signal ?

[vitthal]

How can I generate Amplitude Modulated signal ?

I got this VI from the NI examples but in this VI "AM message signal .vi" is missing. So how can I generate missing VI or complete VI for the Amplitude Modulated signal using PXI 5441 and PXI 5610 as upconvertor. If possible guide me steps to generate.

Thanks and best regards

Vitthal Kodgirwar

Graduate Student

University of Texas at Arlington.

[Aaron_W.]

Vitthal,

Thanks for posting on the NI forums. I am not sure why this example would be missing that sub-vi, but I will attach that sub-vi in my post so you can include it in your code. However, if you need to generate an AM signal with the 5441 and the 5610 it would be much easier to use the RFSG examples. These can be found in the Example finder under Hardware Input and Output >> Modular Instruments >> NI-RFSG >> Modulation Toolkit >> MT RFSG Generate AM.vi. This example will get you started with generating an AM signal with your hardware. Another note is that the combination of the PXI-5441 and the PXI-5610 is called the PXI-5671. I have included the links to a couple PDFs that should help you get started as well. Thanks!

NI RF SIgnal Generators Getting Started Guide: 

http://digital.ni.com/manuals.nsf/websearch/ECD0ADBB659E30F986257611006CD86B

NI PXI-5671 User Manual:

http://digital.ni.com/manuals.nsf/websearch/E50A795245F0AA8286256FC000784EB3

[vitthal · Accepted solution]

Hi Aron,

How are you doing ?

 Thank you very much for your reply. Actually i found that VI in example problems but when I try to run that it showing some error 

and the error is (niRFSG Initialize.vi<ERR>DAQmx Error -200220 occurred: Measurements: Device Identifier is invalid.)

The VI that I have attached is giving only a simulation results but I want to generate signal using hardware.

Please find the attached VI for AM generation, and guide me for the Error correction 

And is the center frequency means carrier frequency?

thank you,

vitthal Kodgirwar

Graduate student

University of Texas at Arlington 

[Aaron_W.]

Vitthal,

This error is occuring because you are not referencing the "Resouce Name" of your RF Hardware correctly. You should be able to look in Measurment and Automation Explorer and see what the 5610 device is named. This is the name that you should use for the "Resource Name" in the program. You will also need to make sure that you have the 5441 associated correctly with the 5610. These instructions are included in my previous linked "Getting Started..."guide. I have also linked the correct page here as well. 

Yes, the Center Frequency is the same as the Carrier Frequency. 

[vitthal]

Hi Aaron,

Thank you very much for your help. Got the results. 

thank you

Vitthal Kodgirwar 

[ThamaraiKannan7321]

tHANK YPU SO MUCH THIS ATTACHEMENT , THIS IS SLOVING MY ISSUE , 

THANK YOU SOMUCH SIR ....