2. misc-audio
  3. 157777-13272

Measuring line noise and power conditioners

I recently purchased a Trifield EMI (Dirty Electricity) Line Meter to measure noise coming from my outlets. To my surprise, my $500 power conditioner (name withheld to protect the potentially innocent) appears to not filter any noise per the Trifield readings. In fact, with some of my outlets the measures are higher through the conditioner’s outlets, than the measures coming straight out of the wall. The manufacturer denies anything is wrong with their conditioner, claiming the Trifield is measuring the wrong frequencies. Can anyone explain?

output555

Showing 3 responses by piaudiol

piaudiol
75 posts
 
Addenda:

https://www.eetimes.com/electrical-noise-and-mitigation-part-1-noise-definition-categories-and-measu...

https://www.allaboutcircuits.com/technical-articles/electrical-noise-what-causes-noise-in-electrical...

https://www.sciencedirect.com/topics/engineering/electrical-noise

http://www.arrl.org/power-line-noise
https://www.prelectronics.com/support/pr-knowledge-library/tips-and-tricks/8-tips-and-advice-for-red...
https://www.techhive.com/article/3063590/how-to-get-rid-of-hum-and-eliminate-other-noises-from-your-...

https://www.gcaudio.com/tips-tricks/power-line-distrubances/

http://www.equitech.com/articles/rep1.html
https://www.prosoundweb.com/in-the-studio-preventing-hum-and-rfi/

https://www.soundonsound.com/sound-advice/q-how-can-permanently-stop-mains-noise-my-studio

Need more?  I got million examples..

Duh.
piaudiol
75 posts
 
OK.  BLATANT ADMISSION.  I am the manufacturer of the UberBUSS power conditioner.  This being said here is the experience of one of my clients:  Thread is on Audio Nervosa-

Check the new UberBuss with my Entech Wideband AC Noise Analyzer.

Calibraded the meter for a noise level reading of 100 on an AC outlet without the UberBuss plugged.

Plugged the UberBuss into the outlet and the noise level dropped to 50, plugged meter into the NCF outlet on the UberBuss and it dropped to .3.

Guess it works. 

piaudiol
75 posts
 
cakyol

Your statements fly in the face of long settled science.

Dude, google is your friend. Look it up: EMI ; RFI ; broadcast radiation.  Halfwave rectifiers.  Cell phones.......


Why does every research lab doing milspec research utilize power filtration: LASL; Sandia Labs; Lawrence/Livermore; KAFB; MIT; Stanford; NASA; DARPA; Fermi Institute; VVA; every semiconductor manufacturer on the face of the earth and on and on and on and...

You are just wrong. You are simply clueless.  Do some homework.  Try something.
More to discover