signals = [ ".",
"Weather warning: there is a storm approaching",
"~",
"HeLicoptcr arriving McMurdo station 10:00 Tuesday",
**"",
"First aid kit needed at far camp",
"*&_)*&^%^&*%^$~:",
"Food delivery drop will be delayed by 48 hour,",
"Repairs needed at the observation platform ",
"Urgent - update all anti-virus systems",
"Please re-send metrological data",
"234724u2u23u888",
"..",
"asjdha## djhaidj# ddjiadj#",
"Medical officer requested at main base ",
" %"]