I attach below some screenshots from my IC-7300 spectrum scope set at 2.5KHz wide while transmitting nearby into a 50 ohm dummy load on the 5 bands (20,17,15,12,10M). Settings for each band on the 7300 were identical. Other than on 20M, the signal does not appear as pure and has some side lobes? It also sounds just slightly raspier in the sidetone on the upper bands, but this could be my imagination.?
Is this something I should be concerned about?
