Agilent Technologies Signal Analyzer N9030a - Manual (Page 836)

6 RLC Swept SA Measurement Front-Panel & SCPI Reference
Meas Setup
Otherwise, Auto will choose Best Wide-offset Phase Noise
Note that in these models, the hardware does not actually provide for an extra-fast tuning option,
so the settings for Fast Tuning are actually the same as Best Close-in, but the rules are
implemented this way so that the user who doesn't care about phase noise but does care about
tuning speed doesn't have to remember which of the other two settings gives faster tuning.
The RBW to be used in the calculations above is the equivalent –3 dB bandwidth of the current
RBW filter.
These rules apply whether in swept spans, zero span, or FFT spans.
Best Close-in Φ Noise
The LO phase noise is optimized for smaller offsets from the carrier, at the expense of phase
noise farther out.
The actual frequency offset within which noise is optimized is shown with in square brackets, as
this can vary depending on the hardware set in use. For example, in some analyzers this
annotation appears as [offset <20 kHz]
Key Path Meas Setup, PhNoise Opt
Example FREQ:SYNT 1
Couplings The frequency below which the phase noise is optimized is model dependent:
PXA with option EP1: [offset <140 kHz]
Models with option EP2: [offset <70 kHz]
CXA with option EP4: [offset <90 kHz]
CXA without option EP4: n/a
All other models: [offset <20 kHz]
Readback Close-in.
If manually selected the “Man” will be underlined.
Initial S/W Revision Prior to A.02.00
Modified at S/W
Revision A.12.00
Best Wide-offset Φ Noise
The LO phase noise is optimized for wider offsets from the carrier. Optimization is especially
improved for offsets from 70 kHz to 300 kHz. Closer offsets are compromised and the throughput
836 Remote Language Compatibility Measurement Application Reference