Originally posted Dec 10, 2014
What is the role of a physical book in an electronic world?
I recently got a copy of the newest edition of Spectrum and Network Measurements by Bob Witte. This is the second edition, and it was a good time for an update. It’s been more than a dozen years since the previous one, and I think an earlier, similar work by Bob first appeared in the early 1990s. Bob has a deep background in measurement technology and was, among other things, a project manager on the first swept analyzer with an all-digital IF section. That was back in the early 1980s!
One of the reasons for the update is apparent from the snapshot I took of the cover.
The latest edition of Bob Witte’s book on RF measurements, with a real-time spectrum analysis display featured on the cover. Pardon the clutter but the book just didn’t look right without a few essential items.
The cover highlights a relatively recent display type, variously referred to as density, cumulative history, digital phosphor, persistence, etc. These displays are a characteristic of real-time spectrum analyzers, and both the analyzers and displays were not in mainstream RF use when the previous edition of the book appeared.