Satellite Pass Predictor
Track amateur radio satellites and predict passes for your location
Your Location
Popular Amateur Radio Satellites
ISS (ARISS)
Active
Uplink
145.990 MHz FM
Downlink
145.800 MHz FM
APRS
145.825 MHz
Notes
Cross-band repeater when active
SO-50 (SaudiSat-1C)
Active
Uplink
145.850 MHz (67.0 Hz tone)
Downlink
436.795 MHz FM
Notes
10-min timer, needs arm tone
AO-91 (RadFxSat)
Active
Uplink
435.250 MHz (67.0 Hz tone)
Downlink
145.960 MHz FM
Notes
Daylight only operation
IO-117 (GreenCube)
Active
Uplink
435.310 MHz Digipeater
Downlink
435.310 MHz
Notes
MEO orbit, long passes!
RS-44 (DOSAAF-85)
Active
Uplink
145.935-145.995 MHz SSB/CW
Downlink
435.610-435.670 MHz
Notes
Linear transponder (inverting)
CAS-4A/4B
Active
Uplink
435.220 MHz SSB/CW
Downlink
145.870 MHz
Notes
Linear transponder