Amateur Radio Frequencies – please note: only one mode active at a time
*** Current Status of ISS Stations ***
FM VOICE for ITU Region 1: Europe-Middle East-Africa-North Asia
- Downlink 145.800
- Uplink 145.200
FM VOICE for ITU Region 2&3: North and South America-Caribbean-Greenland-Australia-South Asia
- Downlink 145.800
- Uplink 144.490
FM V/u with PL VOICE Repeater, Worldwide
- Downlink 437.800MHz FM; Doppler +-10KHz
- Uplink 145.990MHz FM with 67.0 Hz PL
AX.25 1200 Bd AFSK Packet Radio, Worldwide
- Downlink 145.825
- Uplink 145.825
FM SSTV downlink, Worldwide
- Downlink 145.800, generally Pd 120 mode
UHF Simplex (rarely used)
- Downlink 437.550
- Uplink 437.550
Other Frequencies
121.125 FM RS EVA from Orlan suit [Credit N5VHO]
121.75 FM Downlink from Soyuz-TM (voice). RS EVA from Orlan suit. Soyuz VHF-2. Progress Telemetry. [Credit N5VHO]
130.167 AM VHF-2 Downlink from Zarya (Service Module). RS EVA to Orlan suits [Credit N5VHO]
143.625 FM VHF-1 downlink. Main Russian communications channel. Often active over Moskow. You can hear air to ground conversations in Russian. Sometimes English when US crews talk to their NASA representative in Star City. [Credit IZ6BYY]
166.000 AM Soyuz-TM and Progress M-1 telemetry
632.000 634.000 AM Zarya telemetry
628.000 630.000 AM Zvezda telemetry
922.76 CW Soyuz-TM and Progress M1 beacon
2265.0 Digital Telementry Downlink
15003.4 Digital Data downlink
SPACE X DRAGON FREQUENCIES
2216 MHz
2205.5 MHz
2231.5 MHz
400.5 MHz