Sometimes when I'm runing in stations with my
grundig-fr200 radio I hear something that
sounds like teletype or really fast morse code. what is this?

Could be WEFAX, FAX, RTTY, SSTV, PACTOR, NAVTEX, some packet-based FSK
mode etc. You don't give us much to narrow it down.

Sometimes they intersperse CW ID's in among the deedle-deedles.

Tim.