Tektronix RSA6100A Series, Help Manual

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Amplitude Corrections Internal Settings Tab
Maximize dynamic range.
Selecting Maximize Dynamic Range has several effects:
Sets RF attenuation to allow higher drive levels at the RF mixer.
Sets IF gain levels to optimize the IF for the higher signal levels that result from allowing higher
drive levels at the mixer.
Selects the acquisition path used in the instrument taking into account the user-speci fi ed Resolution
Bandwidth (RBW). When an RBW of less than 30 kHz is selected, the instrument uses a narrow-band
(312.5 kHz) acquisition path, regardless of the selected span or measurement bandwidth. This results in
the best rejection of out-of-band signals in the IF stage of the analyzer, but comes at the cost of slower
update rates for all spectrum analyzer spans and measurement bandwidths greater than 312.5 kHz.
Increases the resolution of the mathematics used in calculations of all signal results from 16 bits to
28 bits whenever span or measurement bandwidth is set to ≤ 312.5 kHz. This is made possible by the
high levels of decimation applied to signals processed in these narrow bandwidths.
Minimize noise. This mode increases the system gain at points past the RF mixer. This has the effect of
reducing the displayed average noise level.
The table below summarizes the conditions.
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RSA6100A Series Real-Time Spectrum Analyzers Help