"All I can say is bone up (heh heh) on your Morse Code. Also, make sure you know which freq's ILS are (odd tenths below 112.0 or something). Other than that it's pretty easy.
Oh, know your acronyms too (VOR, ADF, PKT, MLS, SQRRR, etc)."
No kidding! I had to listen to a chinese encrypted morse code and decypher in under 30 secs! The only equipment they give you are a pair of old dirty david clarks w/o a sani-com!