https://network.satnogs.org/observations/1714280/
I used vcgencmd display_power 0 to turn off the display stuff totally.
Not sure if that fixed it as my interference was on NOAA 15 not NOAA 18.
https://network.satnogs.org/observations/1710890/
Which I have to wait 6 hours for. https://network.satnogs.org/observations/1714734/
Also I currently still have broadband noise. I need to check my power supplies out still.