I get about 50' from my homelink to a rr501 located in the living room on an outside wall. I used my ICON RF remote to set the homelink.
Chew on this: Homelink works by grabbing a frequency and code from an existing remote. Had the remote you used to program the homelink been de-tuned or not exactly on freq., the homelink may not be either. garbage in, garbage out.
Just a thought.