Hi, I have this knock out problem, tried ferrite beads, ferrite cores, coils, vodoo, black magic...
I came to conclusion that some devices are really built not caring for RF exposure. Two different revisions of a Speedstream 2400 modem behave completely different. One could whitstand my 160m TX signal, other not. Finally I tried a Dlink DSL-500B that works ok, so far... 73, Felipe Ceglia - PY1NB ------------------------------------------------------------------------------------- PR1T team member /// Rio DX Group member /// Araucaria DX Group member http://dxwatch.com /// http://reversebeacon.net /// http://riodxgroup.com On Mon, Jul 16, 2012 at 11:40 PM, <lrp...@comcast.net> wrote: > > > My problem is that when I try to operate on 160 the DSL > > crashes. I have tried many Type 31 3 inch ferrite rings > > with 20 turns on both the phone line and the Cat 5 cable > > from the Zhone modem but even at 200 watts the > > DSL looses sync. > > Herb, > > > > > The problem usually comes from the wall wart with RF getting into the > power supply lead. Most modems us an external PS such as the infamous wall > wart. Try wrapping the PS lead around the ferrite core as close to the > modem as possible, the same with the Telco wiring . The other alternative > is to get a modem with a internal PS. De W8VVG > _______________________________________________ > UR RST IS ... ... ..9 QSB QSB - hw? BK > _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK