I don't like diff mode only filters because they have diff mode to common mode conversion due to component tolerance.
I don't see a fuse in the NQN filter and it us rated for only 7 amps. To be used on a 20 amp circuit without an internal fuse it must be able to handle 20 amps. I assume it's not UL listed? Dave WX7G On Jun 21, 2012 1:07 PM, "Guy Olinger K2AV" <[email protected]> wrote: > On Thu, Jun 21, 2012 at 2:59 PM, DAVID CUTHBERT <[email protected]>wrote: > >> The W7NQN line filter is a differential-mode filter. You need a filter >> that >> is designed for common-mode filtering. >> >> Dave WX7G > > > This is from the web page advertisement: > --------- > Compare this with a Brand "C" filter which only handles common-mode > interference problems. The NQN AC power-line filters are optimized for > common-mode and differential-mode filtering and have about 3 times the > components of brand "C". > --------- > > Seems to specifically include common mode. > > See http://arraysolutions.com/Products/nqnaclinefilter.htm > > 73, Guy. > _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK
