3 VMA Mode
3.2 Custom OFDM Measurement
IF Gain can be used to set this function to Auto, or to On (the extra 10 dB) or Off.
These settings affect sensitivity and IF overloads.
Only applies to the RF input. Does not apply to baseband I/Q input.
IF Gain Auto
Activates the auto rules for IF Gain.
Remote
Command
[:SENSe]:OFDM:IF:GAIN:AUTO[:STATe] ON | OFF | 1 | 0
[:SENSe]:OFDM:IF:GAIN:AUTO[:STATe]?
Example
:OFDM:IF:GAIN:AUTO OFF
:OFDM:IF:GAIN:AUTO?
Couplings When either the auto attenuation works (for example, with electrical attenuator), or the optimized
mechanical attenuator range is requested, IF Gain is changed as follows:
Auto sets IF Gain to ON if the input attenuator is set to 0 dB
For other settings, Auto sets IF Gain to OFF
Preset OFF
State Saved Yes
Range Auto|Man
IF Gain Select
Selects the range of IF gain.
High gain HIGH Set 10dB IF gain for better noise level measurements
Low gain LOW Set 0dB IF gain for large signals
Other OTHer Enables you to set the arbitrary IF gain value within -12 dB to 12 dB. This
selection is not available for the B25 If bandwidth option
When this parameter is changed, IF Gain Auto will become Man.
Remote Command
[:SENSe]:OFDM:IF:GAIN:SELect LOW | HIGH | OTHer
[:SENSe]:OFDM:IF:GAIN:SELect?
Example
:OFDM:IF:GAIN:SEL LOW
:OFDM:IF:GAIN:SEL?
Preset LOW
State Saved Yes
Range LOW|HIGH|OTHer
Other IF Gain
When "IF Gain" on page 535 is set to OTHer, specifies the IF Gain value.
Vector Modulation Analyzer Mode User's &Programmer's Reference 536
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