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Original thread:
Post 4 made on Wednesday December 27, 2023 at 10:43
Brad Humphrey
Super Member
February 2004
If you get a blinking light on the base when sending RF commands from the remote, then that means the base station is receiving the RF signals.

That only leaves the RF routing in the software.
1) Is the device trying to be controlled selected to RF (or even IR & RF) in the base station menu.
2) What port is it selected for or is it selected to 'All'

I suppose you could have a defective MX890. One that is transmitting the RF code but not the preamble for the routing, which would make the signal go nowhere in the base. That also would explain why the MRF100 works, since it doesn't use preambles.
But in all my years, I have never seen a URC remote fail in that manner. That would be a first.

The other thing I noticed is you said you tried an MX-890i & MRF350i and got the same result. Meaning it would blink the RF light on the base but not send out the codes? Was the RFX-250(i) antenna that came with the MRF350i, also labeled as an "i" model? Because the antenna has to be the same as well.
If so, I don't mean to pick on you but you HAVE to have something wrong in the programming. There is no way you could have 2 remotes that are defective in a way that has never been seen before.

Either that or you need to call a priest to the home. It needs an exorcism. :)

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