How can i measure SNR(S/N)value using FSP Spectrum analyser

hi ,
I want to measure S/N value using spectrum analyser.i already installed rsspecan instrument driver.I also configured span,center frequency ,RBW,VBW etc but i am not able to get measured S/N value.I have attached my vi here with.how could i measure SNR Ratio??can you please help me!
thanks.
Tadhika
Attachments:
Unbenannt 1.vi ‏77 KB

Hi, first of all I'd recommend to contact the R&S customer support center to be shure the measure the correct value. Did you really measure the actual noise, or do you measure the noise which is "only" displayed?
But anyway, did you have had a look at this example: http://www2.rohde-schwarz.com/file/rsspecan_lv8_noise_marker_example.zip
There is the setup of one noise marker shown. With your already existing marker value this should do the trick, also in case of two noise markers; just use the rsspecan Configure Marker Noise Measurement.vi again with input parameter <YourMarker+1> of the "Marker" input of the VI.
Hope that helps?
juergen

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