Catshot – before I got the tracking generator, I had some good results using manual sweeping. I used the SA44b with a Marconi 2024 sig gen, letting the analyser run at whatever rate it chose and manually stepping the generator. Sometimes I had to go over the sweep again with a smaller step size to fill in a few ‘holes’.
With careful choice of RBW and step size it is possible to get good results, but it is s-l-o-w!
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