FM Satellite Frequency Summary


AMSAT Fox-1 Satellites
Uplink FM
(67 Hz CTCSS)
Downlink FM Comments
AO-85 (Fox-1A) 435.170 MHz 145.980 MHz Operational
AO-91 (RadFxSat / Fox-1B) 435.250 MHz 145.960 MHz Operational
AO-92 (Fox-1D) 435.350 MHz &
1267.359 MHz*
145.880 MHz Operational
Fox-1Cliff 435.300 MHz &
1267.300 MHz*
145.920 MHz Launch by end of 2018 (with K2SAT / ExseedSat)
* Switchable by command station. Not operational simultaneously.
SO-50 (SaudiSat-1C)
Uplink FM
(67 Hz CTCSS)
Downlink FM Comments
SO-50 145.850 MHz 436.795 MHz Operational
SO-50 also has a 10 minute timer that must be armed before use. Transmit a 2 second carrier with a CTCSS tone of 74.4 Hz to arm the timer.
CAS-3H (LilacSat-2)
Uplink FM Downlink FM Comments
CAS-3H (LilacSat-2) 144.350 MHz 437.200 MHz Operational
When FM transponder is not on, there is a telemetry beacon on 437.200 MHz (LilacSat-2 Home Page). The FM transponder is on no set schedule. For real time updates about which mode the satellite is in, see the AMSAT Live OSCAR Satellite Status Page
IO-86 (LAPAN-A2)
Uplink FM
(88.5 Hz CTCSS)
Downlink FM Comments
IO-86 (LAPAN-A2) 145.880 MHz 435.880 MHz Operational
Satellite is in a low-inclination low earth orbit and not visible north of about 30 degrees north or south of 30 degrees south. FM transponder operations are by schedule only. See for schedule updates.
FUNcube on ESEO
Uplink FM Downlink FM Comments
FUNcube on ESEO 1263.500 MHz 145.895 MHz Launch Late 2018 / H1 2019
Also downlinks 4k8 BPSK telemetry.
Uplink FM Downlink FM Comments
Duchifat3 145.970 MHz 436.400 MHz Launch Late 2018
Also downlinks 9k6 BPSK AX.25 telemetry 437.475 MHz. Possible 145.825 MHz APRS transceiver.
Uplink FM Downlink FM Comments
K2SAT 145.980 MHz 435.835 MHz Launch 2018 (With Fox-1Cliff / ExseedSat)
Telemetry downlink 435.835 MHz. Data downlink 2404 MHz (2 mbps QPSK).
Uplink FM Downlink FM Comments
Diwata-2 437.500 MHz 145.900 MHz Launch October 29, 2018 (H-IIA F40)
Also includes APRS and a CW beacon. Launching on JAXA H-IIA F40  (
Uplink FM Downlink FM Comments
CAS-5A 145.925 MHz 435.600 MHz Launch Postponed from Sep 2018
Also includes 3 linear transponders. CW Beacon 435.570 MHz. 4.8k / 9.6k GMSK telemetry 435.650 MHz.
Uplink FM Downlink FM Comments
ExseedSat 435.340 MHz 145.900 MHz Launch 2018 (with Fox-1Cliff / K2SAT)
Also includes a digipeater. 67 Hz CTCSS Tone + DTMF tones to activate transponder
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