2017-09-22, 23:23
(2017-09-21, 07:22)Andrew.Instone-Cowie Wrote: That doesn't look too bad in terms of amplitude, here's my current noise floor. (I have the LP filters installed to take out a military VLF transmitter near Blackpool)
Also looks like you are also getting a bit of 19.6 KHz from Anthorn and 22.1 KHz from Skelton. The amplitude goes up and down over a few cycles as they beat against each other. Partulary noticeable on the red channel.