Here is some background information about the ARISS Expedition two operation. For Expedition 3 information, click here
Russian Commander Yuri Usachev, UA9AD
American Flight Engineer Susan Helms, KC7NHZ.
American Flight Engineer Jim Voss
These callsigns are available for use on the ISS:
| Russian callsign | RSOISS, RZ3DZR |
| USA callsign | NA1SS |
| Packet station mailbox callsign | RZ3DZR-1 |
| Packet station keyboard callsign | RZ3DZR |
At present, operations will only take place on the 2m band.
Here are the frequencies for Expedition Two operations:
| Worldwide downlink for voice and packet: | 145.80 |
| Worldwide packet uplink: | 145.99 |
| Region 1 voice uplink: | 145.20 |
| Region 2 & 3 voice uplink: | 144.49 |
QSLs and SWLs will be accepted and can be processed through Radio Amateurs of Canada or the American Radio Relay League. The card design is being finalized, but should be ready for distribution early next year.