| PsychoKnight |
Different wireless audio baby monitors don't work in my study because of all the e.m. interference put out by the electronic ballasts (and I'm not going to get rid of the actinics) so I hard-wired a security camera/mic from the baby room and piped it into a spare computer monitor.
Works great if it wasn't for the actinic pc ballasts; I get all kinds of fuzz. Tried aluminum foil out of curiosity. Doesn't work.
Anyone know how I can add a secondary DIY emf shield to my computer monitor? I know that all computer monitors and computer speakers are encased in a thin metallic shield. What material is it made of and where can I get some?
Thanks if you have any specific knowledge (real-world experience vs theories and guesses).
TheyKeepCallingMeBruce |
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| G. COLTON |
I think that you are going to have to shield your entire system if you are having that much problem. The wires from your camera to the monitor will pickup as much are more interferance as your monitor. That is unless you used shielded cable.
You said " I know that all computer monitors and computer speakers are encased in a thin metallic shield." I am not aware of this. Please elaborate. If this is so I would suggest you call one of the manufacturers and ask what it is that they are using.
G |
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| DaleB |
I'm assuming the camera/mic electronics is battery powered? That would rule out any filtering at AC outlet.
You are not removing the pc ballasts, etc. but are there quieter ones available?
Can not shielding be more effective at the source?
It would seem copper would be the most practical material to use. Based on personal experience but not with the exact same problem.
Sorry, you want answers not questions, just trying to get more info and make suggestions. |
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| 04mdx4sq |
quote:
Originally posted by G. COLTON
I think that you are going to have to shield your entire system if you are having that much problem. The wires from your camera to the monitor will pickup as much are more interferance as your monitor. That is unless you used shielded cable. G
G is likely correct, the wiring (either electrical or signal wire) to the monitor may be acting as an antenna for noise. |
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