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I've been listening to the Chicago stream for a few days now but I'm becoming more curious as to what some terms mean. I hear '10-11 Robert' and '11-34 Robert' a fair bit for example. Is there a comprehensive list of these 'codes' ? And I assume 'Robert' means received (according to google)

Last question is I hear a weird Morse code everyone in a while. Is that a station identifier?

Cheers