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| Silly tread |
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| ebastler:
--- Quote from: ogden on November 29, 2018, 06:57:03 pm ---I would switch off anything in that house except guitar+amplifier+recording_laptop_on_batteries and check that interference is gone or not. If not then find it. --- End quote --- Good idea in principle; but you probably missed the post where 001 explained that this is in an basement below a data center (server room?). If he meant that literally, I don't think they would be supportive of the "switch it all off" approach... ;) |
| Richard Crowley:
--- Quote from: 001 on November 29, 2018, 06:37:28 pm ---I rotate pickup and now I find "quiet" position --- End quote --- Then you have an "accidental" direction-finder. You can rotate the pickup to find the null (*) and maybe even triangulate to the source. (If it is a point source, which it may not be) And you should be able to move around and get a stronger signal as you move closer to the source, etc. * Remember that when using a coil for direction finding, when you have a null, the source is perpendicular to the coil axis. |
| coppercone2:
if you play those backwards you hear some stuff about spilling the blood of the innocent and burning crosses |
| ebastler:
--- Quote from: 001 on November 29, 2018, 06:37:28 pm ---I rotate pickup and now I find "quiet" position But now I can hear some chirping and new HFhum :-// (dont worry about mains buzz) Hear it: --- End quote --- That's still the same 5 kHz frequency. (With mains buzz in the first clip, without in the second.) |
| 001:
--- Quote from: ebastler on November 29, 2018, 08:39:45 pm --- --- Quote from: 001 on November 29, 2018, 06:37:28 pm ---I rotate pickup and now I find "quiet" position But now I can hear some chirping and new HFhum :-// (dont worry about mains buzz) Hear it: --- End quote --- That's still the same 5 kHz frequency. (With mains buzz in the first clip, without in the second.) --- End quote --- i mean some modem-like hum |
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