Re: X-10 RF Freq Mod

[Just Another Joe <address@xxxxxxx>]

On Sat, 23 Dec 2006 04:03:33 GMT, nobody@xxxxxxxxxxxx (Dave Houston)
wrote in message <458ca945.654614859@xxxxxxxxxxxxx>:

> Just Another Joe <address@xxxxxxx> wrote:
>
> >On Fri, 22 Dec 2006 11:46:04 GMT, nobody@xxxxxxxxxxxx (Dave Houston)
> >wrote in message <458bbc55.593960468@xxxxxxxxxxxxx>:
>
> [snip]
>
> >> It's really hard to speculate without knowing details. How are you
> >> determining that there are collisions?
>
> So recently, I took one out, put fresh batteries in, and placed it in
> >the computer room facing me.  I also set a transceiver to the same
> >house code as the Hawkeye and placed it in the same room, which is also
> >the room the Ocelot is in.  It's one of the smaller of the two
> >transceivers, so that would be a TM751 rather than an RR501, correct?
>
> That's the TM751.
>
> >In the room also is a palmpad, on a different house code than the
> >motions sensor/transceiver.  The transceiver for the palmpad's house
> >code is in the next room.  It can control, via the Ocelot, any device in
> >the house, some of which devices are on the same house code as the
> >sensor/transceiver, but most of which are not.  But none of the devices
> >are on the same house code as the palmpad; all commands go first to the
> >Ocelot.  Some of the palmpad buttons activate macros.
> >
> >With the Hawkeye in the room, pressing palmpad buttons often resulted in
> >no action.  When I removed the Hawkeye from the room, palmpad operation
> >returned to normal.
>
> Still not enough information. The lack of response could be either RF or
> powerline collisions. If you had an ESM1 meter it would probably show
> powerline traffic but without indicating a valid X-10 signal.

Well, once the RF is going direct to Ocelot instead of via PLC, that
will eliminate PLC collisions of these signals, leaving only RF.  But,
it stands to reason that if many sensors are in use, and/or are located
in high activity areas, that /some/ (many|few) palmpad RF transmissions
will collide with sensor transmissions.

The best thing, or course, would be to have them on different
frequencies.  Hoping someone will be able to point me to some
reasonably-priced RF motion sensors using a different frequency than the
x10.com transmitters.

--
Just Another Joe        Remove .windows to reply.
Why be politically correct, when you can be right?