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, but battery voltage is extremely low.

Do not use while in eclipse.

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
* Switchable by command station. Not operational simultaneously.
SO-50 (SaudiSat-1C)
Uplink FM
(67 Hz CTCSS)
Downlink FM Comments
SO-50 (SaudiSat-1C) 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.
PO-101 (Diwata-2)
Uplink FM
(141.3 Hz CTCSS)
Downlink FM Comments
PO-101 (Diwata-2) 437.500 MHz 145.900 MHz Operational
FM transponder activated by schedule. The Amateur Radio Unit can operate either as an FM transponder or APRS digipeater. See https://twitter.com/Diwata2PH for schedule. For more details, see http://phl-microsat.upd.edu.ph/diwata2
CAS-3H (LilacSat-2)
Uplink FM Downlink FM Comments
CAS-3H (LilacSat-2) 144.350 MHz 437.200 MHz Operational, but rarely active
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 https://twitter.com/lapansat for schedule updates.
FUNcube on ESEO
Uplink FM Downlink FM Comments
FUNcube on ESEO 1263.500 MHz 145.895 MHz In orbit, commissioning
Also downlinks 4k8 BPSK telemetry.
Swiatowid
Uplink FM Downlink FM Comments
Swiatowid 436.000 MHz 145.850 MHz In orbit, power budget does not permit operation of transponder
Telemetry – 435.500 MHz 1k2 AX.25 AFSK, 2435.000MHZ 1Mbps 2GFSK
Duchifat3
Uplink FM Downlink FM Comments
Duchifat3 145.970 MHz 436.400 MHz Launch Dec 11, 2019
Alternately downlinks 9k6 BPSK AX.25 telemetry.
CAS-5A
Uplink FM Downlink FM Comments
CAS-5A 145.925 MHz 435.600 MHz Launch Unknown
Also includes 3 linear transponders. CW Beacon 435.570 MHz. 4.8k / 9.6k GMSK telemetry 435.650 MHz.
CAS-7A
Uplink FM Downlink FM Comments
CAS-7A 145.950 MHz 435.455 MHz Launch Unknown
Also includes 3 linear transponders. CW Beacon 435.430 MHz. 4.8k / 9.6k GMSK telemetry 435.480MHz. 1 Mbps GMSK Image Transmission 10460.000 MHz
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