3 ms·

SDR made me understand how much RF noise my desktop computer emits. Lots of spikes between 400-500mhz. Could be my monitor also, as scrolling text seems to

• themodelplumber 5y ago
  Same here with the monitor, I have an old Dell 24" from 2006 that I somehow keep around. I've learned not to expect much if my ham radio is within 3 feet of it. Probably fixable with some clip-on parts but for now it's easier to scoot the chair over...
• tzs 5y ago
  My Samsung monitor does that. It's bad enough that I lose several channels on my Samsung TV when my Samsung monitor is on if the TV antenna is in the same room as the monitor.
• jareklupinski 5y ago
  interesting... I guess I never scrolled while looking at wideband noise :) I'm going to see if I can determine what is/was displayed on the screen by filtering/machine learning the noise, fingers crossed
• cschneid 5y ago
  There's a fun toy I just got called 'TinySA' (tiny spectrum analyzer). For $60, plus an adapter + some wire (another $20 maybe), you can get a live battery powered little receiver that shows noise across the whole spectrum from less than 1mhz through 350mhz. A really basic loop of wire is a directional antenna, so you can narrow down exactly what is causing issues too. I'm doing it to find noise issues for my ham radio setup, but it can be generally fun. Not quite an SDR, but to find noise sources it's pretty amazing for so cheap.
• madengr 5y ago
  Yeah, now PC come in damned glass cases. So much for the FCC.