According to the ARRL, there is a possibility that astronauts aboard the International Space Station may have time work Field Day from space this weekend!. Listen for call signs RS0ISS, NA1ISS or OR4ISS. They will be transmitting a report of !A ISS. If the astronauts are active, they will likely use their crossband repeater (437.80 up and 145.80 down, no CTCSS). This is a first for Field Day activity and takes the concept of working under simulated emergency conditions to a whole new high.