SSB Phase Noise Test part 2
To setup and execute the test I used the following procedure:
1. Turn on the analyzer and allow it to warmup for at least 30 minutes.
2. Connect the generator to the RF input and set it up to 1GHz Max Pwr.
3. Use the analyzer's Auto-Tune to get a basic display.
4. Change the Detector to Sample, the Display to Ampt Graticule On, the Span to 25kHz, RBW to 1kHz, and turn Average On.
5. Set Marker to Delta 10kHz to place the marker at the 10kHz offset, set Marker Fctn to Marker Noise On to normalize the noise reading to 1Hz.
The Spec calls for "10 kHz < -82 dBc/Hz (Typical)" and as shown by the Step_5_Spectrum attachment we got a -83.15 dB/Hz noise reading. Since in this case the carrier power is pretty close to 0dBm, then I think -83dB/Hz is equivalent to -83dBc/Hz. In fact, since the carrier is actually slightly above 0dBm, it's probably closer to -84dBc/Hz.
The procedure for the 100kHz, and 1MHz offsets is basically the same except for the Span and Delta Marker, which need to be set to larger values. For the attached spectrums I used Span = 250kHz, 2.5MHz, and Delta = 100kHz, 1MHz.
As can be seen, the 10kHz, and 100kHz offsets appear to be within specs. However, the 1MHz offset is slightly off, but in my opinion, not by much.