Re: Need help with PLC noise problems in a Manhattan (New York City) apartment
- From: nobody@xxxxxxxxxxxx (Dave Houston)
- Date: Mon, 28 Nov 2005 13:05:37 GMT
Alan,
You are also misunderstanding some other key things. (You have lots of
company.)
Aside from your signal attenuator/blocker the only thing that blocks the
passage of 120kHz is the utility company's transformer. This means that
using X-10 is a bit like having unprotected sex.
The wiring and breaker panels are bidirectional so any 120kHz that
originates within your apartment can reach all other apartments that share
the transformer and any 120kHz that originates in the other apartments can
reach your apartment. This is true whether the 120kHz is from others using
X-10 or is noise from their appliances and devices.
Add to this that should a neighbor be using X-10 RF on a housecode that your
CM15A is set to transceive, the CM15A will neither know nor care that the RF
is of alien origin and will blithely send the PLC codes. (If you are not
using RF, set the CM15A to transceive no housecodes.)
Essentially, you need two whole house blocking couplers (one at each panel).
Then you will need a coupler between the two panels. Then you probably will
still need to avoid X-10 RF.
How close are the two panels?
.
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