What to listen to

Stations worth an evening: what they are, why they are on the air, and how to hear them without a receiver of your own.

ISS

ISS: cosmonauts and mission control story	143.625 MHz	FM	The Russian segment service channel (VHF-1): the crew talking to mission control while the station is over Russia and Europe, during Moscow working hours, 5–10 minutes per pass. The receiver is picked under the pass.
ISS: SSTV pictures and school contacts story	145.800 MHz	SSTV	Pictures from orbit during ARISS events, several times a year for 3–10 days; otherwise school contacts with the crew on the ARISS schedule.
ISS: APRS digipeater story	145.825 MHz	APRS	Ground stations’ packets through the station, almost every pass. The APRS decoder puts them on the map.
ISS: voice repeater story	437.800 MHz	FM	The cross-band repeater: amateurs make contacts through the station, calling on 145.990 with a 67 Hz tone. Doppler on 70 cm reaches ±10 kHz, keep retuning.
ISS: crew backup channel story	130.167 MHz	FM	The Russian segment backup service channel (VHF-2), rarely used.
ISS: spacesuits and Soyuz story	121.750 MHz	AM	The Orlan spacesuit and Soyuz radios: only during spacewalks and ship approaches.