On 12/25/2011 9:29 AM, Andy Brian wrote: > I need notebook for my antenna control and I'm looking how to > reduce or minimaze the noise from PSU, any good suggestion are welcome. > thanks Ferrite is your friend. Mouser is a great source. See http://www.yccc.org/Articles/W1HIS/CommonModeChokesW1HIS2006Apr06.pdf -Joe KM1P