Re: tinySA Tracking Generator article
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OK.? I have never used the BB noise technique for high dynamic range measurements.? I have other test equipment for those purposes.? But, for amateur application (not for tuning cavities), it works quite well.? For 100+ dB applications, still, a good professional VNA is the correct tool.?
Dave - W?LEV
On Fri, Jan 17, 2025 at 7:49?PM Roger Need via <sailtamarack= [email protected]> wrote: The problem with using wideband noise sources is that the total power output can easily exceed the safe maximum power input limit of the Spectrum Analyzer if one is not careful.?
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If you keep the total power output below the safe limit you don't get much dynamic range for the measurement.
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Sure you can run a high power noise source and hope the filter output will reduce the total output power to a safe limit but just one mistake when you hook things up and bye bye front end of your SA.
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Roger
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