neazoi
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Hello, there are quite a few spectrum analyzer schematics for the scope out there.
The usual schematics use the scope in the XY mode, like this https://www.qsl.net/va3iul/SA/spectrum_an.html
Recently I have found another schematic that does not seem to use the scope in the XY mode but in notmal mode.
Could you please confirm this, or am I missing something?
I believe the trigger output from the scope starts the sawtooth and it "scans" the whole input spectrum, effectively displaying the output amplitude at the scope tube at each time. Am I right?
What are the advantages and the disadvantages of this technique?
The usual schematics use the scope in the XY mode, like this https://www.qsl.net/va3iul/SA/spectrum_an.html
Recently I have found another schematic that does not seem to use the scope in the XY mode but in notmal mode.
Could you please confirm this, or am I missing something?
I believe the trigger output from the scope starts the sawtooth and it "scans" the whole input spectrum, effectively displaying the output amplitude at the scope tube at each time. Am I right?
What are the advantages and the disadvantages of this technique?