Router causes problems for monitors?

  • Thread starter Thread starter CrowsofFritz
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CrowsofFritz

CrowsofFritz

Flamingo!
Because I just moved, I had to change my whole setup. Once I got internet, I put my wireless router next to my right monitor. I noticed when the monitor was on, it sounded like a helicopter was in it lol. :D

So I moved the router three feet, and lo and behold, the noise was gone! Any reason for this? What creates the feedback/interference?
 
Short answer: The router is a (2.4 GHz or 5 GHz) radio transmitter and the speaker wire is an antenna.
 
That's the main reason to run balanced cables. If your monitor and interface have balanced inputs/outputs, running balanced cable would have fixed it as well.
 
Whoops.... :facepalm:

I swapped out balanced cables for unbalanced because I needed more mic cables. I guess I forgot lol.
 
As it only happened when the router was very close, would it be more likely electrical interference than the wireless signal, as the wireless signal is still broadcast over a long distance? Just wondering...
 
Jonny,
Electrical interference was a possibility.
I deduced that it was RFI/EMI when he said it ended once he moved the router, as the most plausible cause.

I eliminated electrical line interference, by assuming that he had both monitors plugged into the same power strip or receptacle, which would possibly cause both monitors to chatter. However, EI was never out of the equation.
 
Well, most WiFi routers I've seen use a wall wart and actually operate at quite a low voltage so, although anything is possible, my bet would be on an RF stage, perhaps one of the intermediate frequencies in the modulation stage.

In RF line of site operations, every time you double the distance from the transmitter, the attenuation is 6dB so it doesn't take a lot of extra distance to cure an interference problem.
 
There's an old HAM radio operator trick to coil a couple of loops in cables, to attenuate RFI. I never had a need to try it.
 
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