3 IQ Analyzer (Basic) Mode
3.1 Complex Spectrum Measurement
The increased noise due to turning dither on is most significant in low band (0 to 3.6
GHz) with IF Gain set to Low, where it can be about 0.2 dB.
See "More Information" on page 258
Remote
Command
For option details, see Range entry below
Complex Spectrum:
[:SENSe]:SPECtrum:ADC:DITHer[:STATe] ON | OFF | 1 | 0
[:SENSe]:SPECtrum:ADC:DITHer[:STATe]?
Streaming:
[:SENSe]:STReaming:ADC:DITHer[:STATe] ON | OFF | 1 | 0
[:SENSe]:STReaming:ADC:DITHer[:STATe]?
Example
:SPEC:ADC:DITH 0
:SPEC:ADC:DITH?
Preset
AUTO
Range
On
ON
Best Log Accy
Off
OFF
Best Noise
Backwards
Compatibility
SCPI
Not supported in STReaming measurement
[:SENSe]:ADC:DITHer AUTO
[:SENSe]:SPECtrum:WBIF:ADC:DITHer ON | OFF | 0 | 1
[:SENSe]:SPECtrum:PDITher ON | OFF | 0 | 1
Backwards
Compatibility
Notes
The old command [:SENSe]:ADC:DITHer AUTO is aliased to:
[:SENSe]:ADC:DITHer:AUTO[:STATe] ON
Because of this, the [:SENSe]:ADC:DITHer function cannot be a true Boolean, so the query,
[:SENSe]:ADC:DITHer? returns OFF or ON (not 1 or 0 like a true Boolean)
Auto Function
Remote
Command
Complex Spectrum:
[:SENSe]:SPECtrum:ADC:DITHer:AUTO[:STATe] ON | OFF | 1 | 0
[:SENSe]:SPECtrum:ADC:DITHer:AUTO[:STATe]?
Streaming:
[:SENSe]:STReaming:ADC:DITHer:AUTO[:STATe] ON | OFF | 1 | 0
[:SENSe]:STReaming:ADC:DITHer:AUTO[:STATe]?
Example
:SPEC:ADC:DITH:AUTO 0
:SPEC:ADC:DITH:AUTO?
Preset
ON
More Information
Detail on the settings are as follows:
IQ Analyzer Mode User's &Programmer's Reference 258