Thanks for your reply.
I have since learned
a couple of things.
First, while the system
does use a pseudo-spread spectrum signal, it is
not at all for encryption but rather for reliability.
The algorithm is in fact published by the patent
holder and is used across various brands which are
Second, there are some systems
that require a wake-up signal but it seems most
modern ones (including this one) does not. It broadcasts
every 14 seconds whether or not anyone is listening.
There's supposedly an Opensource (ish) project
in the works, but if you go to their site right
you'll see its down at least for the moment so who
knows where that's at.
I'd still like to
do something, however in my research since posting
I now know I can't do what I'd like to do, even
if I could establish communication. I was hoping
for a practically real-time setup so that, for example,
I could flush my toilet and see on my computer some
14 seconds later that the toilet flushed (based
on expected volume). Unfortunately it can't work
like that. While it does broadcast every 14 seconds,
it updates WHAT is broadcasts only once every hour.
So it can't be as useful as I'd hoped, no matter
what. But I'd still like to get somewhere on this.