why the RF isnt work

[ferasParticipant]

hello everybody
in the simulation i attached i put the Quadrature Modulator RF on 2.6 GHz but the RF Spectrum Analyzer_3 show it 10 MHz only .
why this happen if anybody can help me please .

Attachments:

1. 16QAM-OFDM1.osd

[alistuParticipant]

Hi Feras,

In order to be able to set the spectrum analyzer to show the plot in the frequency you have chosen, you are going to need to increase the samples per bit parameter to be able to see it properly (according to Nyquist theory). I increased your samples per bit from 8 to 128 and now I have the right plot.

Regards

[ferasParticipant]

thank you very much alistu , i changed the samples per bit as u said and i have now agood result ,
thank you for your help

[alistuParticipant]

You’re welcome Feras.

Cheers!