Re: Line Noise Interference Question

[nobody@xxxxxxxxxxxx (Dave Houston)]

"random735" <random735@xxxxxxxxx> wrote:

>well, i just got a filter to address my ws12 switch problems, and
>somehow I managed to get a bum unit myself, so it does happen
>apparently...I got the smarthome branded 10amp filter, and when I plug
>a module into either the filtered or unfiltered outlet, i can still
>control the module.  Needless to say i'm pretty irritated at getting a
>unit that never should have made it out of quality control.  Have not
>contacted smarthome yet to see what they're going to do about it (after
>business hours) but they better have a free shipping label for me.

I was a little too quick with that suggestion. I can't find a spec on the
X-10 web site but, from memory, the older units need 100mV signal and newer
ones only 50mV. I'm not sure whether that is peak-to-peak or just peak.

With a 5V signal level even the 30:1 filter will allow 167mV through and
many transmitters have a 10Vpp signal level.