3 IQ Analyzer (Basic) Mode
3.1 Complex Spectrum Measurement
[:SENSe]:STReaming:IF:GAIN[:STATe]?
Example
:SPEC:IF:GAIN LOW
:SPEC:IF:GAIN?
Couplings As with most parameters that have an Auto state, Auto Couple sets this function to AUTOrange, which
then selects LOW or HIGH, depending on the IF Path. Setting any specific value (AUTOrange, LOW,
HIGH or OTHer) sets the Auto state to OFF
Preset
LOW
State Saved Saved in instrument state
Range
AUTOrange
"Autorange (Slower: Follows Signals)" on page 261
LOW Gain "Low Gain (Best for Large Signals)" on page 262
HIGH Gain "High Gain (Best Noise Level)" on page 262
OTHer
Explicit
Annunciation Autorange | Low | High | Other
Found in the Meas Bar under IF Gain
When not in Auto, label changes to #IF Gain
Auto Function
Remote
Command
Complex Spectrum:
[:SENSe]:SPECtrum:IF:GAIN:AUTO[:STATe] ON | OFF | 1 | 0
[:SENSe]:SPECtrum:IF:GAIN:AUTO[:STATe]?
Streaming:
[:SENSe]:STReaming:IF:GAIN:AUTO[:STATe] ON | OFF | 1 | 0
[:SENSe]:STReaming:IF:GAIN:AUTO[:STATe]?
Example
:SPEC:IF:GAIN:AUTO ON
:SPEC:IF:GAIN:AUTO?
Preset
ON
Auto
Allows the instrument to pick the IF Gain method as appropriate. When in Auto, IF
Gain is set as follows:
–
When the model is N9041B and the IF Path is 1 GHz, HIGH gain is the auto
choice
–
For all other cases, LOW gain is the auto choice
Autorange (Slower: Follows Signals)
Turns the ADC ranging to automatic, which provides the best signal to noise ratio.
261 IQ Analyzer Mode User's &Programmer's Reference
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