Problems with hum

[Dafter777]

Hello everyone! I have an Aria Retro Classic 1532 electric guitar. I play while sitting next to my PC, and my guitar pickups receive electromagnetic radiation. By the way, everything is fine with the cables.
When I play my electric guitar through a NUX MG-400 processor into a Behringer UMC 404HD sound card, there is a hum. The hum varies depending on the physical distance. I want to buy some kind of device to eliminate noise. Tell me which one would be best
Behringer micro hd400 or di box behringer di100 active or alctron di120 passive. I have inst buttons on my sound card and they already give a linear signal, so I would like to buy behringer micro hd400 but the thing is, will it be able to qualitatively remove noise like ground lift in behringer di100? I just don't want to waste more money, since the second one is more expensive

 

[AnalogSteph]

Quite possibly none of all these.

Hold the guitar next to your monitor - does all hell break loose then?

This guitar seems to be using single coil pickups rather than, say, humbuckers (hmm... I wonder why they're called that). Guess what single coil pickups like to do? Inductively couple to big ol' current loops, as found in monitor backlight circuits or power supplies. The same way that an AM radio with an internal ferrite rod can be used as a CCFL monitor backlight detector. It's even mentioned in the Wikipedia article.

If you can identify the location and orientation of the most problematic loops, you may be able to apply parallel external shorting loops / rings nearby and reduce magnetic fields this way. (Basically the same idea as shorting rings in speaker drivers.)

Mind you, if that guitar is built like it was in 1968, shielding of the signal wiring in electrostatic terms (Mr. Faraday and his cage and stuff) may be substandard as well. It's less likely to be an issue though, assuming the PC is a bog standard desktop connected to a grounded outlet.

 

[Dafter777]

Quite possibly none of all these.

Hold the guitar next to your monitor - does all hell break loose then?

This guitar seems to be using single coil pickups rather than, say, humbuckers (hmm... I wonder why they're called that). Guess what single coil pickups like to do? Inductively couple to big ol' current loops, as found in monitor backlight circuits or power supplies. The same way that an AM radio with an internal ferrite rod can be used as a CCFL monitor backlight detector. It's even mentioned in the Wikipedia article.

If you can identify the location and orientation of the most problematic loops, you may be able to apply parallel external shorting loops / rings nearby and reduce magnetic fields this way. (Basically the same idea as shorting rings in speaker drivers.)

Mind you, if that guitar is built like it was in 1968, shielding of the signal wiring in electrostatic terms (Mr. Faraday and his cage and stuff) may be substandard as well. It's less likely to be an issue though, assuming the PC is a bog standard desktop connected to a grounded outlet.

 

[Dafter777]

My friend, I am comfortable playing guitar only in front of the computer. I can't move to another place. So I have to buy one of these two, only such a choice, because I read that they will fix these problems. I have the new version of Aria Retro Classic 1532 electric guitar and not 1968