Agilent Technologies X Series Manual page 323

Example
Notes
Dependencies
Preset
State Saved
Min
Min
Max
Initial S/W Revision
Modified at S/W Revision
Auto
Selects the LO (local oscillator) phase noise behavior to optimize dynamic range and speed for various
instrument operating conditions.
The X-Series has two grades of LO; a high performance LO that gives the best phase noise performance;
and a medium-performance LO that gives excellent performance.
In models with the high performance LO, Auto will choose:
Best Close in Phase
Noise
Filter 400 kHz
BW
In models with the medium-performance LO, Auto will choose:
Best Close in Phase
Noise
Filter 150 kHz
BW
WAV:FREQ:SYNT 2
Selects optimization for best wide offset phase noise
Parameter:
1 optimizes phase noise for small frequency offsets from the carrier.
2 optimizes phase noise for wide frequency offsets from the carrier.
3 optimizes LO for tuning speed
(In PXA, the local oscillator hardware provides for extra-low phase noise at
the expense of some speed.)
Does not appear in all models. The key is blank in those models, but the SCPI
command is accepted for compatibility (although no action is taken).
Because this function is in Auto after preset, and because Digital IF BW after
preset < 150 kHz for MXA/EXA and > 400 kHz for PXA the state of this
function after Preset will be 1 for MXA/EXA and 2 for PXA.
Saved in instrument state.
1
1
3
Prior to A.07.00
A.07.00
Best Wide-offset Phase
Noise
> 400 kHz
Best Wide-offset Phase
Noise
>150 kHz
Waveform Measurement
Meas Setup
323