Browser on computer causes interferance for low bandwith fm stations

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Discussion Overview

The discussion revolves around the interference experienced on low bandwidth FM radio stations when a computer is used, particularly when a web browser is opened. Participants explore potential causes of this interference, including electrical network activity and the impact of a KVM switch on the setup.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant notes that the radio signal is clear when the computer is used without a browser, but interference occurs when a browser is opened.
  • Another participant suggests that the interference may be related to electrical network activity associated with browser usage, regardless of the website visited.
  • A participant mentions that the issue began after installing a KVM switch, implying that it may have exacerbated the interference.
  • One suggestion for addressing the interference is to use snap-on toroids, which may help mitigate the problem.
  • Another participant hypothesizes that the interference could be due to radiation from the video signal or screen, proposing that unplugging the monitor might eliminate the interference.

Areas of Agreement / Disagreement

Participants express various hypotheses regarding the cause of the interference, but there is no consensus on a definitive explanation or solution. Multiple competing views remain regarding the source of the interference and potential fixes.

Contextual Notes

The discussion does not resolve the underlying assumptions about the nature of the interference or the effectiveness of proposed solutions. The relationship between the KVM switch and the interference remains unclear.

DavoMarc
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Hi,

I have a computer set up with a KVM switch.
When using the computer and not opening a browser, IE or Firefox, the radio is fine.
When I open a browser I get interference on the radio ... Low frequency on the fm bW in the 80 Mhz range. If I open both browsers it completely kills the signal with noise. Upper frequencies past the 90 Mhz range are not effected. I am wondering as a curiosity what is happening and how the opening or use of ports on a computer can do this. Also, for giggles I'd like to know what the fix is for something like this.

Thanks in advance.

D
 
Computer science news on Phys.org
Does it matter which website you are visiting?
 
Hi, Thanks for the quick response.
No it doesn't matter.

-D
 
All I can think is that whenever you are using a browser, there is electrical network activity - whether it's wifi or ethernet - and that's causing the interference.
 
Yes, that makes sense. This didn't happen until the KVM switch was installed. Some how that exacerbated it. Maybe I can somehow shield it. Thank you appreciate the information.
 
its radiation from your video signal or screen I would guess, set up the web page, and unplug your monitor and turn it off.
The interference will probably go away, the extra wires from the KVM switch is making your video cable a better antenna.
 

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