To Reduce The Receiver Noise Floor - HP 8711C User Manual

Changing System
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Receiver dynamic range is the difference between the analyzer's maximum
allowable input level and its noise floor.
Reducing the system bandwidth lowers the noise floor by digitally reducing
the receiver input bandwidth. As system bandwidth is reduced, more
receiver measurements are used per frequency point, increasing the sweep
time. However with system bandwidth reduction, unlike averaging, only one
sweep is required for the reduced noise floor effect.
The analyzer offers a choice of six system bandwidths: wide, medium wide
(default setting), medium, medium narrow, narrow, and Ene.
2. Press the key that corresponds to the bandwidth you want.
Wide 6500 Hz
l
Msd Wide 4000 Hz
l
Medium 5700 Hz
l
N O T E
It is recommended that wide system bandwidth only be used for broadband detection measurements
due to trace noise effects.
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Increasing Network Analyzer Dynamic Range
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Optimizing Measurements
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