Re: XTB-II Options

[nobody@xxxxxxxxxxxx (Dave Houston)]

"Jeff Volp" <JeffVolp@xxxxxxx> wrote:

>One case where this would not be true is when the "remote" transmitter is
>very close to the distribution panel.  In this case, that transmitter signal
>should be similar in strength on its own phase to the output of most common
>repeaters, and the first half of its message should propagate through the
>house just as well to devices on that phase.  The second half of the message
>can be corrupted on the transmitter's phase due destructive cancellation,
>but the repeater's output should be OK on the second phase.

For 120kHz cancellation the signals have to be 180° out of phase _AND_ of
equal amplitude at the receiver. Otherwise, you see a change in duty cycle
but you still see a 120kHz signal. It is not a real world issue! If it were,
Insteon, which depends on 180° phase shifts in the 131.65kHz carrier would
not work.


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