Understanding Spectrum Analyzers – DANL

This video provides a short technical introduction to DANL, or displayed average noise level, in modern spectrum analyzers.

Timeline:
00:00 Introduction
00:18 Suggested viewing
00:36 Introduction
01:14 About displayed average noise level (DANL)
02:01 Factors influencing DANL
02:25 Noise figure and DANL
03:19 Resolution bandwidth and DANL
04:35 Input attenuation / reference level and DANL
05:42 Preamplifiers and DANL
06:23 Noise cancellation and DANL
07:10 Why isn’t my DANL flat?
07:51 Summary