Didn't the ARRL do some work with the manufacturer of a similar device a
few years ago. As I recall, the approach was to notch the amateur bands
so that the thing didn't attempt to use them for transmitting data.
Hard to see how you could do any sort of line filtering otherwise, since
it is injecting RF into a whole houseful of wiring.
73, Pete N4ZR
The World Contest Station Database, at www.conteststations.com
The Reverse Beacon Network at http://reversebeacon.net, blog at
reversebeacon.blogspot.com,
spots at telnet.reversebeacon.net, port 7000 and
arcluster.reversebeacon.net, port 7000
On 7/11/2012 12:52 PM, Jim Brown wrote:
> On 7/11/2012 8:44 AM, Scott Yost wrote:
>> The AC wiring makes a great radiator, and with 7 neighbors
>> sharing the distribution transformer, it has a lot of wiring to use.
> It's important to understand that the mechanism at work here is
> RADIATION. The wiring in HIS house is a TRANSMITTING ANTENNA, and that
> is the primary mechanism by which you are hearing the trash, which your
> receives like any other RF signal. The only part that CONDUCTION plays
> here is that the trash gets onto that wiring to radiate. The wiring in
> YOUR house is NOT part of the problem, and there's nothing you can do in
> YOUR home to fix it.
>
> Like most noise sources, you've got to get a stake through the heart of
> the beast itself. From the description, it sounds like a classic BPL
> sort of transmission system, and it's unlikely that it can be "fixed"
> without unplugging it.
>
> 73, Jim K9YC
>
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