I have an IC-7300.
When observing weak signals, the spectrum scope has signal peaks that are way too small. Just now I was listening to a clearly audible CW signal that was easily heard but hardly moved the spectrum scope at all. I had to squint at it!
I'd like to set the gain of the 'signal scope' (not the waterfall!).
I can set the reference level of the scope, but this only shifts the zero-value of both the spectrum and the waterfall up/down. I can set the Waterfall Peak Color Level, but this only changes the gain of the color scale of the waterfall. It does not set the decibels per vertical line in the scope itself.
How do I set the gain of the spectrum scope?