tinySA used to assess a Broadband Magnetic Loop Amplifier 

instablaster.

How did you adjust the waterfall to the higher dbm floor (hence the reddish color scheme) and still keeping the low dbmaround -80 to 110dbm value that usually would make a darkblue colors aint the waterfall a slave to the dbm values at the right.? maybe its old firmware with the red being the nominator at 80 to -110dbm, as it almost looks like its reversed coloscheme for the waterfall?

@@JAKOB1977 Its old FW

@@ErikKaashoek I see, and the blue noisefloor as the dominant tone is prefered, imo. Its so shockingly easy to put new firmware on these TinySA / Ultra with stm32cube, so if one would want to try this old fw with red as the dominant floor color, do you recall what the latest old fw is with that that waterfall colorscheme.? I understand that it will be limited fw, where certain features settings etc. are not yet present. big thumbs up for your work Erik, Im gobsmacked how featurerich and comptent these TinySA tools are.

A home build balanced amplifier with first two emitter coupled transistors for impedance conversion and then two norton amplifiers

The receive loop is 1.5m diameter. The transmit loop 30cm. Distance 4m

@@ErikKaashoek thank you for the video and quick reply to my question. I intend to repeat your experiment with my MFJ amplified loop and Elecraft RF generator.