Attila,
>From my (past) CATV experience, ferrite-based devices don't introduce "noise" as such but they can certainly pick up noise (or transmit) unless they are toroidal or otherwise well screened. However, they can introduce distortion if the winding flux density approaches the ferrite's saturation level. In the CATV world where amplifier launch-levels approach +40 to 50 dBmV, close-by "splitters" being fed this level produce not-so-subtle IM and distortion artefacts. Drop the level "3dB" and it all disappears. Kit Canberra Aust ------------------------------ Message: 3 Date: Sun, 20 Jul 2014 00:09:00 +0200 From: Attila Kinali <[email protected]> To: [email protected] Subject: [time-nuts] Noise and non-linear behaviour of ferrite transformers Message-ID: <[email protected]> Content-Type: text/plain; charset=US-ASCII Hi, I'm currently looking at some way of breaking the ground loop between several systems. The obvious idea would be to use transformers. I would like to have some kind of rule of thumb to guess how much noise such a transformer would add. But unfortunately i cannot find any theory or measurements of this. Does anyone have some pointers to documents on what kind of noise i could expect (type, and strength) and what/how strong the non-linear behaviour of transformers would be? Thanks in advance Attila Kinali PS: although this started as something with a real application in mind, i'm now interested in this as an endavour of its own. So all and any data, theory or rule of thumb would be appreciated -- I pity people who can't find laughter or at least some bit of amusement in the little doings of the day. I believe I could find something ridiculous even in the saddest moment, if necessary. It has nothing to do with being superficial. It's a matter of joy in life. -- Sophie Scholl _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
