I was about to send my CM15A and all my DS10 units back, because I could not get them to work more than 20 feet from the CM15A.
Then I read this post here about adding some length to its existing antenna.
What I tried even simpler seems to work for me.
I simply taped a 9.5 inch piece of 14 gauge bare wire on to the side of the existing small antenna on the CM15A.
I did not cut or remove the original antenna (In fact I did nothing to it), because I did want to hurt my warranty in the event I actually want to return it.
Anyway this simple mod actually works, and I can now get the DS10's to trigger events in the Active home software.
Maybe someone can jump in a tell me why just putting a 9.5 inch of 14 gauge wire next to the existing cm15a antenna gives it much more distance?
Anyway my simple modification allows the CM15A to pick up all 8 DS10's from all over my home now, 100 feet or more through two walls even..
Hey whats wrong with these people at X10 anyway ??
It looks like a no brainier that the CM15A just needs a longer antenna..
And this unit has been around a few year now.. Go Figure??
Anyway the CM15A will not work with my HomeSeer software, as there are so many better interfaces around,
but I still can program macros with the quirky and problematic ActiveHome Pro software and download it to the CM15A for running
my lights and some nice macros without a computer.
Eventually I will use the DS10's in part of my existing Caddx Alarm system.
Phil