kiloran wrote:I haven't watched the latest episode yet, but I don't get the reference to morse code.
You can do it via bangs if you can make two tones and agree in advance which is a dot and which is a dash. Which they slightly randomly agreed for no obvious reason, just before the final scene of episode 5 :
We won't pick you up [on radio] out here though, so bang on the door when you need to come out.
Do any of the crew know Morse Code?
Yes, I do.
OK, I'm going to find two tones. High tones for dots, low for dashes. In case we need to message.