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Spectral Purity of 8257D

Question asked by sudhinagamangalam on Nov 5, 2013
Latest reply on Nov 8, 2013 by tabbott
Hai All...

i am facing a problem of spectral purity of RF O/P of 8257D sig gen.
At carrier freq of 9 GHz, analyzed with SA (4446A) with settings CF=9.0GHz,span=1kHz,RBW=VBW=1Hz , measured results as follows.

carrier Offfser (Hz)    Value(dBc)
50                                             -58.94
100                                            -65.8
150                                            -70.37
200                                            -73

how can i reduce these power supply harmonics to below -70 dBc level? pls help.

thanks in advance.

Edited by: SudHi NaGaMaNgaLaM on Nov 5, 2013 6:47 PM