Call letters or dial position?
You raise an IMPORTANT concern.
But when you ask to-which-do-people-pay-attention, you're asking-the-wrong-question.
Why: They don't.
They're coping with mental clutter.
It's OUR job to cut-through-the-clutter.
Not their job to come-find-us.
I've learned to say this REAL carefully, but here goes: "It's only radio."
They don't need to care much, because we're free.
We're just...there...UNLESS we pop-out-the-speaker.
RE call letters vs. dial position: It's always been an inside-the-box/outside-the-box thing.
Ask 10 people at your radio station (if there are still 10 employees there) to name their buttons.
They'll answer call LETTERS.
Buttonhole 10 people at the mall and ask 'em THEIR dashboard pre-sets, and:
a) they'll answer NUMBERS, and
b) they'll probably stall after 2 or 3 stations.
Now, with streaming audio in the dashboard, and on that-thing-we-used-to-call "a cell phone," stations are smart to mention the domain name at-parity-with their dial position, i.e., "WXXX AM860 AND WXXX DOT COM."
HC
www.HollandCooke.com
http://getonthenet.com/MonsterMash.mp3