Now a word about QSL cards. These are cards that are exchanged between hams (and sometimes between hams and shortwave listeners). Here's the QSL card we are using for our expedition. If you hear us on the air, let us know and we will send you one.
The box at the bottom of the card is filled in to confirm an exchange over the air called a QSO. Abbreviations like QSL and QSO date back to when Morse code was the main way hams communicated. Morse code communications often resembles today's texting. For example, HI HI = LOL