ISS Frequencies
Amateur Radio Frequencies
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 VOICE Repeater (Worldwide)
- Downlink 145.800
- Uplink 437.800
AX.25 1200 Bd AFSK Packet Radio (Worldwide)
- Downlink 145.825
- Uplink 145.825
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
This Frequency has not been confirmed yet. Please contribute and post your report as comment - 632.000 634.000 AM
- Zarya telemetry
This Frequency has not been confirmed yet. Please contribute and post your report as comment - 628.000 630.000 AM
- Zvezda telemetry
This Frequency has not been confirmed yet. Please contribute and post your report as comment - 922.76 CW
- Soyuz-TM and Progress M1 beacon
This Frequency has not been confirmed yet. Please contribute and post your report as comment - 2265.0 Digital
- Telementry Downlink
This Frequency has not been confirmed yet. Please contribute and post your report as comment - 15003.4 Digital
- Data downlink
This Frequency has not been confirmed yet. Please contribute and post your report as comment


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