3 Short-Range Comms & IoT Mode
3.11 IQ Waveform Measurement
[:SENSe]:WAVeform:FREQuency:SYNThesis[:STATe]?
Example
:WAV:FREQ:SYNT 2
Selects optimization for best wide offset phase noise
Dependencies Does not appear in all models. For models that do not display this control, the SCPI command is
accepted for compatibility, but no action is taken
Not available in VXT models M9410A/11A/15A/16A and M9410E/11E/15E/116E
Preset Because this function is in AUTO after Preset, the state of this function after Preset will be automat-
ically calculated
State Saved Saved in instrument state
Range See "Ranges" on page 1611 below
Auto Function
Remote
Command
[:SENSe]:WAVeform:FREQuency:SYNThesis:AUTO[:STATe] OFF | ON | 0 | 1
[:SENSe]:WAVeform:FREQuency:SYNThesis:AUTO[:STATe]?
Example
:WAV:FREQ:SYNT:AUTO ON
Preset
ON
Parameter Options & Installed Options
The Phase Noise Optimization control lets you optimize the setup and behavior of
the Local Oscillator (LO) depending on your specific measurement conditions. You
may wish to trade off noise and speed, for example, to make a measurement faster
without regard to noise or with optimum noise characteristics without regard to
speed.
Parameter Values Summary
Option # Description
"Balanced" on
page 1607
1
–
In instruments with EP0, balances close-in phase noise with spur
avoidance
–
In instruments without EP0 optimizes phase noise for small
frequency offsets from the carrier
"Best Wide-
offset" on page
1608
2 Optimizes phase noise for wide frequency offsets from the carrier
"Fast Tuning"
on page 1608
3 Optimizes LO for tuning speed
"Best Close-in"
on page 1607
4 or 1*
–
In instruments with EP0, emphasizes close-in phase noise
performance without regard to spur avoidance
–
In instruments without EP0, this setting is accepted but no action is
taken
1606 Short Range Comms & IoT Mode User's &Programmer's Reference
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