How many people have spectrum analyzers or access to one?
I have read about spurs created by chips like the AD9850. How does a typical ham checkout one of these devices?
Back in the OLD DAYS (1960's) we used frequency selective voltmeters. They were very much similar to today's direct conversion receiver.
I have an article from the ARRL on building spectrum analyzer that works with an ordinary osciliscope. And I does require a super good scope because what it has to look at is just low frequency information.
I started building one many years ago.
Bob Macklin
K5MYJ
Seattle, Wa
