Another thought, rather than try to raise the harmonics to match the fundamental, with the likely overload issue. Maybe, I could lower the gain after I measure a harmonic so the fundamental will match the harmonics. Avoiding overload, but pushing measurements more in the direction of the noise floor of the dongle. Again, just have to try it to see what works best. Nice thing about using a computer to drive this thing it does not have to follow a linear sweep sequence, it can jump around and play with the attenuator. And do some other math to remove the images, mirrored around 14Mhz, if I use the "direct" mode of the dongle.?
Tom, wb6b
