I have been in some houses where the receivers were close enough that an RF remote from one room would effect on in another.
Then somebody did something VERY wrong then. I
REGULARLY stack multiple receivers in the SAME room, & I NEVER, EVER, EVER have RF conflicts with the remotes! You DO realize that on BOTH E* & D* receivers, you assign discrete RF remote codes to each receiver, so this very thing does NOT happen.
On all the E* RF receivers, you CAN change from among 15 remote addresses (in BOTH RF & IR mode) - again, it is NOT rocket science & will fix that problem!
On all the D* receivers, when you enter the last 6 digits of the RID, it automatically does this for you.
And actually for that matter, if for some reason you need the D* receivers on IR (for 3-party remotes, etc.) you CAN also assign up to 8 discrete IR codes for multiple receivers as well. It's NOT a big deal - if you go into the advance remote setup menu on the D* receiver(s), it even tells you how to do it yourself!
Also, you ARE aware that you can even control 3 SEPARATE D* receivers, on the SAME D* RF or IR remote, by (also) using the AV1 & AV2 switch at the top. Again, if you go through the proper setup procedure, you will NOT have remote conflicts - period!
they understand it and not the tech tricks that we need to know to get by day to day.
If this was the installer forum, I might explain things differently.
(I'm kind of confused what you are trying to say here, but...)
Who cares - do YOU want to be able to give the customer what they are looking for or not?
YOU can now be the "expert" tech & the customer will appreciate it - sometimes it pays to know more than a "layperson"...
I am guessing that if you never put it in RF mode, you skip steps 1-3 and just do 4-8?
YOU GOT IT!
So, are we saying all r15's and r16's will do this?
No, he it saying most, but NOT all...
As I already told you, it ONLY applies to the R15 & R16 models.
Stick w/us on this board & you'll be surprised how much you can learn - & most of it pretty easy...

And Edmund IS the remote genius on this board!