Good day, I have not recieved any signals from the "stack" all day in the u.s. @ CN98.

Ron , Western Washington

The shuttle crew may be active on voice during the next couple of orbits. No guaranteed but if they do activate the ham radio, they are expected to use the standard 2 meter frequencies of 145.80 down and 144.49 for ITU regions 2 & 3. Uplink for Region 1 is 145.20.

Good luck and be sure to pass along well wishes for a safe return.

Kenneth - N5VHO

Installation of PCSat2 on the International Space Station (ISS) is expected to come during a spacewalk set to begin very early Wednesday, August 3. The NA1SS/RS0ISS Amateur
Radio on the International Space Station (ARISS) equipment has been powered down while PCSat2 systems are installed and activation tests run. The ARISS gear will be returned to operation after a few days.

http://www.amsat.org/amsat/archive/sarex/48hour/msg06799.html