A lot of people new to the use of spectrum analyzers have some difficulty grasping the concept of video bandwidth (VBW), resolution bandwidth (RBW), video averaging, and peak hold. This short video from Anritsu explains the functions and demonstrates how settings affect signal display and sweep time. There are many similar test equipment instructional videos available online.
HP (now Agilent) had the best spectrum analyzer app note (AN-150) for years, and it was used by a couple generations of engineers as a must-read document. An updated version of it is available that contains all the original content.
Print out a copy and hang it in the lab.
The hp Memory Project has a collection of downloadable vintage HP application notes, along with a long list of app note titles.
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