On the CM15a you can't turn the receiver off.
I had range problems so I figured I would use two TM751's set to separate channels to receive RF. I had the tranceived channel set to none on the CM15a but didn't realize that only prevents transceiving the rf to the power line but not receiving. What I figured was happening was the CM15a and TM751 from the troubled sensors would both see the rf and act, unfortunately. The CM15a would execute it's macro while the TM751 was transceiving so there was a signal collision.
Using the CM15a for all my rf was my first major improvement. To extend CM15a range there are some excellent threads here. BTW, since I wasn't going to use the TM751 anymore for rf anyway I took it's antenna and used it in my CM15a
. It's needs just some minor engineering, a washer, and it's a bit long and so I only extend the height to 9.25" but works great.
I also used the passive radiator concept to help my sensors a bit. I used 14 gauge wire (18.5" long) effectively laying across the top of the sensor. The adjacent sensor radiates into the wire which in turn more effectively transmits the signal. There is a link here somewhere for this too.
I mentioned earlier that the macro I used did not work correctly if clearing a flag occured right after the condition. When I controlled a light first then cleared the flag all was good. It malfunctioned by still executing the else portion even though it shouldn't have.
For my USB connection I had problems using an extender cable. When I used the standard length cable that came with the CM15a it worked correctly.
Make sure your power line phases are coupled if your system crosses both phases.
If you are having problems with a module that's far away there are range extenders that work great.
If I think of nything else I'll add on.
The Light Warrior, victorious !!!
