I had a 3 hour trial and error session Saturday with the MX990/MRF350 not playing nice with a Comcast X1 DVR. (This is a new system...all devices are less than 1 week old.) I had an emitter properly operating the box...most of the time. However, I was testing the favorite channels (about 15 of them) when I noticed the erratic behavior. That is, if the macro called for
9
.2 sec delay
0
.2 sec delay
6
.2 sec delay
enter
it might instead appear as 90006 on the DVR. It went to channel 999 somehow a few times. Weird. Database code set: 195
I have been able to resolve a nearly identical symptom before when using the MRF350 or MRX2 by moving the base station about 20" - 30" away from the X1 DVR. Not this time. I moved it, or the antenna, or the emitter wire in every reasonably direction. No help. I also tried a different emitter and a different port on the MRF350.
I finally discovered a workaround by using the IR from the remote or, more permanently, the IR blaster of the MRF350. I just had to make a few "DO NOT MOVE" labels for the DVR and the MRF350. Not a first choice, but I was out of patience. Anyone else been down this road before?
Thanks!

No. However.

Try reducing the repeats to zero. Lengthen the delay to 0.3 or 0.4 seconds. And a strange thing occurred to me -- in between number commands, put a command from some other device. I can't explain why I think this might help.

I did something like this once, and it worked. It was for DirecTV favorites. I created a command that was used in between the numbers, and experimented with which commands aliased to that one. Again, I have no idea why it worked.

When people ask me about changing to the X – 1, I tell them that I would be able to make their remote work with it, but if they have favorites then forget the favorites. Once in a great while they will work consistently, but most times not, so I am moving away from them.

Check that code set you are using. I do NOT think 195 is the correct one. When you look, you will see 3 code sets = one says its for IR (I think that is 195), one is for RF, and one is for IP.
The one for RF is the one for the X-1 DVR (I think it's 200 something). The other 2 will give you erratic behavior.

The code set is wrong. Use 202. It's labeled "RF" only

ok....thanks for the input...but...if the repeats and codes sets were not changed, why would the IR signal work flawlessly?

I know in my area, the IR set (code 195) worked fine until a month ago. Then I had several customers call about problems controlling the box (suspect firmware update on boxes).
I updated the URC remotes to the code set 202 and it worked perfect.
I do remember the code set 195 has a 'search' code in it, that is not present on the RF code set. Not a deal breaker thou.

The URC techs spent time to develop an RF working code set. Codes 202 are different from the ir code set.