Hi Charlie,
I think there is only a shortcoming in the use of the program.
When you want to measure something and have already drawn the graph, you can make the measurement data visible with the markers.
Displaying the markers: you select with the mouse, by default the marker1, then you click with the mouse again on the graph, then the measurement data is displayed. Then select the next marker and the graph will display the desired frequency data where you have been missing so far.
You may want to search the group wiki and files folder to use nanovna-saver and you will get many questions answered.
Successful use.
Don't give up, this version can also be used!
73, Gyula HA3HZ
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