It pretty much says it all. If you are having trouble receiving signals throughout your house, X-10 makes a signal repeater. This document should be viewed in a mono-spaced font. The carrier is at a nominal frequency of 300 MHz. The envelope of the carrier is sketched below.
Time progresses from left to right.
A 1 is sampled when the envelope goes high for 0.4 ms and then returns low for 0.7 ms. All rights reserved. Circuit Cellar Inc. Reproduction of this publication in whole or in part without written consent from Circuit Cellar Inc. is prohibited.