[quote=@Lugubrious]
By the way, folks, don't jerk toward the Edit button, just thought I'd say: nobody uses Morse Code.  It's a complete Hollywood thing nowadays.
[/quote]

Not to be contradictory and Hari might know more about this but while Morse Code has fallen into a bit of an archaic state it's not gone altogether. Most Navies stopped using it at the end of the '90s but it's still used today in aviation for identification purposes. It's also used for people with severe motor disabilities, as an example, Stephen Hawking's computer aid interprets how he moves one of his cheek muscles in mores code and translates it into speech.

It might not be quite as common now as it was twenty years ago but Morse Code isn't gone. It wouldn't be a stretch to assume that people with a military or radio background would still be well versed in it. And if this Distillery is outside of Vale's borders hiring a communications official would be a necessary precaution so while I can't see your average run of the mill guy knowing Morse Code it would be feasible for someone at the Distillery to be versed in it.

Though you are right Morse Code has become something of a Hollywood cliche.

Also to the team at the Distillery if the guy transmitting doesn't know anyone is receiving he will be sending a short repeating message so don't get too wordy.

EDIT: Though now that I actually read the post, why would you flash something in mores code on a com system? If pressing this 'answer' button will open communications between wherever the survivor is and the team's location then Morse Code would be completely unnecessary as he could just keep redialing the panel over and over again.