3 IQ Analyzer (Basic) Mode
3.1 Complex Spectrum Measurement
Example Set IF Gain Offset to 2:
:SPEC:IF:GAIN:OFFS 2
Dependencies When the "IF Gain" on page 260 State is set to OTHer, the "Other IF Gain" on page 263 value is used,
and the IF Gain Offset value is ignored
Preset 0
State Saved Saved in instrument state
Min/Max Depends upon hardware present
Other IF Gain
Explicitly specifies the IF Gain value.
This parameter is only applicable when the "IF Gain" on page 260 is set to OTHer.
When IF Gain is set to AUTOrange, LOW, or HIGH, this value is ignored.
Remote
Command
Complex Spectrum:
[:SENSe]:SPECtrum:IF:GAIN:LEVel <rel_ampl>
[:SENSe]:SPECtrum:IF:GAIN:LEVel?
Streaming:
[:SENSe]:STReaming:IF:GAIN:LEVel <rel_ampl>
[:SENSe]:STReaming:IF:GAIN:LEVel?
Example
:SPEC:IF:GAIN:LEV -10
:SPEC:IF:GAIN:LEV?
Preset 0
State Saved Saved in instrument state
Min/Max Depends on hardware present
Mixing Mode
Mixing Mode enables you to alternate between mixing modes for the Local Oscillator
(LO). The default setting is NORMal LO mixing mode, which is determined by the
instrument configuration to be either “high side” or “low side”. Typically, “high side”
mixing mode is used for the NORMal LO mixing mode. Selecting the ALTernate
mixing mode selects “low side” mixing when the NORMal mixing mode is “high side”
mixing, and selects “high side” mixing mode when the NORMal mixing mode is “low
side” mixing.
This function can be useful in eliminating images that may be seen from adjacent
channels. Whenever you have signals that are twice the IF above your signal of
interest, they will alias on top of your signal. To eliminate this issue, switch to
ALTernate side mixing and your measurement will be image-free.
263 IQ Analyzer Mode User's &Programmer's Reference
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