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Home / Knowledge Base / Knowledge Base Spectrum Analysers / Knowledge Base RSA3000 Series / Setting up the RSA3000 and RSA5000 series spectrum analysers to capture the lowest level signals

Setting up the RSA3000 and RSA5000 series spectrum analysers to capture the lowest level signals

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Posted on: December 16th, 2020 by Doug Lovell

The lowest level signal you will be able to see captured on a spectrum analyser will be limited by the DANL or displayed average noise level so the lower the DANL the better.

To obtain the lowest DANL the RSA3000/RSA5000 series analyzers will need to be operating within these parameters and settings:

Attenuation = 0 dB
Sample Detector
Trace Average greater or equal to 50
Tracking Generator set to off
Normalized to 1Hz
Operating between 20°C to 30°C
Input Impedance set to 50 Ohms