Sounds from Space


Sounds from Amateur Radio Satellites 2019-today


This section is dedicated to satellites built and operated by Radio Amateurs. Satellites built by AMSAT organizations around the world and were called AMSAT-OSCAR. Those built by Russian Hams and were mostly called Radiosputnik. In order to build and launch the satellites AMSAT needs members and friends to contribute and raise funds. If you are not yet a member of AMSAT please consider to join us and to support the activities. You can find several links to AMSAT on my links page.

My special thanks to Roy W0SL, Jim N4ST, Don KD4APP, Darrel AA7FV, Jim N5JDB, Clive G3CWV, Mike DK3WN, Reinhard DJ1KM +, Michael DG1CMZ, Oliver DG6BCE, Peter DF2JB, Volker DF7IT, Jean-Louis F6AGR, Thomas HB9SKA, Christoph HB9HAL, Claudio IK1SLD, Andreas OE1DMB, Michael PA3BHF, Henk PA3GUO, Darek SP9TTX, Ricardo PY3VHQ, Keith ZS6TW, Don N4UJW, Vladimir RA3DQT, Paulo CT1ETE, John KD2BD, Harald DH8HHA, Maik Hermenau, Ian ZL1AOX, Gerd DL8DR, Michael OH2AUE, Robert G8ATE, Wouter Jan Ubbels PE4WJ, Mark KF6KYI, Al W8KHP, Drew KO4MA, Rolf DK2ZF, Dave WB6LLO, Graham G3VZV, Joe K0VTY, Nils von Storch, Zeljko 9A2EY, Pierre ZS6BB, Bent OZ6BL, Mariano CT1XI, Al GM1SXX, Luc LU1FAM, Matt SQ7DQX, Lance K6GSJ, Chris VK3AML, Bob VE6BLD, Sergej RV3DR, Alex VK5ALX, Rudolf ZS6FX, Dick Daniels W4PUJ/SK , Bob Patterson K5DZE, Jean-Louis Rault F6AGR, Ivano Bonesana, Patrick Hajagos, Luc Leblanc VE2DWE, Mike N1JEZ, John K6YK, Tetsu-san JA0CAW, Marco Bauer, Carl Lindberg SM6NZV, Philip G0ISW, Kuge-san JE1CVL, Pat AA6EG, John M0UKD, Paul Marsh M0EYT, Federico Manzini, Jan PE0SAT, Domenico I8CVS +, Roland Zurmely PY4ZBZ, Rob Hardenberg PE1ITR, Michael Kirkhart KD8QBA, Davide D'Aliesio IW0HLG, Francisco EA7ADI, Kubota-san, Noguchi-san JA5BLZ, Kuge-san JE1CVL, Luciano PY5LF, Wakita-san JE9PEL, Peter ON4EZJ, Enrico IW2AGJ, Jean-Pierre F5YG, Remco PA3FYM, Dave G0CER, Jose Maria EA2JX, Viljo ES5PC, Charly DK3ZL, Bernd DL6IAN and Gustavo LW2DTZ for kindly contributing to this collection !




Launch Date


Fuji-OSCAR 99

NExt generation X Unique Satellite NEXUS is a Japanese satellite launched on January 18th 2019 at 00:50 UTC on an Epsilon rocket from Uchinoura Space Centre. The 1U Cubesat was built by Nihon University

Its linear transponder and data frequencies are:
   145.900-145.930 MHz (CW/LSB)
Downlink: 435.880-435.910 MHz (CW/USB)
  435.900 MHz & 437.075 MHz
Callsign: JS1YAV

The CW beacon has been successfully received on 437.0732 MHz.

Jan 18th 2019

Jean-Pierre F5YG received the CW downlink signal of NEXUS during its orbit #354 on February 10th 2019. Recording kindly provided by Jean-Pierre F5YG.

Fuji-OSCAR 98

Origami is one of Japan's traditional paper-craft arts, the art of folding paper.

OrigamiSat-1 is a 3U Cubesat and part of the ORIGAMI project (ORganizatIon of research Group on Advanced deployable Membrane structures for Innovative space science).

  • The solar power array and the planar antenna realized on a thin film, by the boom-film composite structure that allows weight reduction and high collection rate of major structural (ORIGAMI Project proposal) "Multifunctional developing membrane structure" universe demonstrate to. (Multi-function film deployment mission)
  • 3U to allow space experiments of various deployable structure on the CubeSat, to build the "experiment platform" to continue developing technologies that take advantage of the continuous universe demonstrate in the future, perform the universe demonstrated. (Of OrigamiSat-1 of 3U, experimental platform portion 2U size specimen is 1U size.) (Space proof platform development Mission)
  • So far to establish the amateur radio satellite communication technology in the 5.8GHz band, which has not been much use, to contribute to the spread of the same frequency band. Further to realize an antenna sticking into the thin film. (Amateur radio Mission)

The downlink frequencies are 437.505 MHz (1200bps AFSK, CW)
and 5840 MHz (115 kbps).

Jan 18th 2019

Jean-Pierre F5YG received the CW downlink signal of Origamisat-1 during its orbit #49 on January 21st 2019. Recording kindly provided by Jean-Pierre F5YG.

Navy-OSCAR 103

BRICSat 2 (Ballistically Reinforced Communication Satellite) is a low cost 1.5U CubeSat built by the US Naval Academy Satellite Lab in collaboration with George Washington University, that will demonstrate on-orbit operation of a Micro-Cathode Arc Thruster (µCAT) electric propulsion system and carries an Amateur communication payload as a follow on to BRICSat-P (BRICSat 1). Four µCAT offset thrusters can both change the attitude of BRICSAT-2 but also do some orbit maneuvering. BRICSat-2 has a Amateur communication payload on boards. An APRS constellation transponder with a telemetry downlink on 437.975 MHz and with packet up- and downlinks on 145.825 MHz 1k2 and 9k6 AX25.

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June 25th 2019

Navy-OSCAR 104

PSat 2 (ParkinsonSAT) is a student satellite project which is a two way communications transponder for relaying remote telemetry, sensor and user data from remote environmental experiments or other data sources back to experimenters via a global network of internet linked volunteer ground stations. The data transponder also includes all telemetry, command and control for a complete cubesat. The PSat-2 is a 1.5U CubeSat.

The unique features of PSAT-2 are the APRS transponder and the PSK31 transponder, both of which flew on PSAT-1 and the new APRStt (TouchTone)/Voice transponder, for which a prototype flies on the eXCITe (QIKCOM-2) satellite, which lets everyone do APRS using any radio with DTMF keypad, not just those with APRS radios.

The callsigns of PSAT2 are PSAT2-1 when it is in safe-mode with the DIGI switched off and the callsign is PSAT2 when the digi is on.

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June 25th 2019

BIT Progress OSCAR 102


CAS-7B (BP-1B) was launched on July 25th 2019 by a Hyperbola-1 launch vehicle from the Jiuquan Space Center, China into a circular orbit with a height of 300km and an inclination of 42.7 degree. This microsatellite was developed by the Chinese Amateur Satellite Group (CAMSAT) in cooperation with the Beijing Institute of Technology (BIT). CAMSAT completed the project planning, design, build, and testing, and manages the on-orbit operation of the satellite. BIT provided the satellite environmental testing, launch support, and financial support. Many students from BIT were involved in the project, learning about satellite technology and amateur radio. The satellite carries a CW telemetry beacon and FM repeater that has been active since launch. Because of the orbital apogee and the size and mass of the satellite, the orbital life of the satellite is expected to be only one week, up to a maximum of one month, which will also provide with an opportunity for hams to track and monitor satellite entering the atmosphere.

The CW telemetry beacon us transmitting on 435.715 MHz (100mW).
The V/U FM transponder uplink frequency is 145.900 MHz.
The V/U FM transponder downlink frequency is 435.690 MHz (100mW)

BO-102 decayed on August 6th 2019.

July 25th 2019

Luciano PY5LF operated via BO-102 on July 28th 2019 at 17:36 UTC. Recording kindly provided by Luciano PY5LF.

Jinniuzuo 1

TAURUS-1 is a 10kg nano-satellite built by Shanghai Aeros Aerospace Science and Technology Co. Ltd. and launched on the CZ-4B rocket from Taiyun Satellite Launch Center into a circular orbit with an altitude of 740km and an inclination of 98.6 degree.

The primary purpose is to test a 2.5m2 drag sail to accelerate de-orbiting.

TAURUS 1 also carries an analog FM to digital voice CODEC-2 (9600bps BPSK) V/U repeater. The FM uplink frequency is 145.820 MHz, a 67Hz CTCSS is needed. The CODEC-2 and the telemetry downlink frequency is 435.8389 MHz. TAURUS-1 uses the same protocol as LO-90 (LilacSat-1).

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Sept. 12th 2019

HuskySat-OSCAR 107


HuskySat-1 is a 3U Cubesat designed by Husky Satellite Lab, a registered student group, in Johnson Hall at University of Washington, Seattle, USA. It was launched on November 2nd 2019 by Cygnus NG-12 from Mid-Atlantic Regional Spaceport Launch Pad 0 on Wallops Island, Virginia to low earth orbit. It was released from Cygnus on January 31st 2020 and started its operations shortly after.

Huskysat-1 will demonstrate onboard pulsed plasma thruster (PPT) and high gain telemetry for low Earth orbit that would be a precursor for an attempt at a larger CubeSat designed for orbital insertion at the Moon.

The satellite will also test an experimental 24GHz data transmitter.

Furthermore it features an inverting V/U linear transponder with a bandwidth of 30 kHz. It was opened for general use on May 10th 2020. The uplink is from 145.910 to 145.940 MHz, the downlink is from 435.810 to 435.840 MHz.

The UHF 1200bd BPSK telemetry downlink frequency is 435.7997 MHz.

Nov 2nd 2019

On May 11th 2020 at 23:56 UTC Zeljko 9A2EY and Charly DK3ZL hat a successful contact via HO-107. Recording kindly provided by Charly DK3ZL.

On May 12th 2020 also late at night Jerome F4DXV and Charly DK3ZL hat a successful contact via HO-107. Recording kindly provided by Charly DK3ZL.

Magyar-OSCAR 106


On December 6th 2019 ATL-1, an Hungarian 2P picosatellite developed by Advanced Technology of Laser ATL Ltd. was launched on an Electron launch vehicle from the Mahia Launch Complex in New Zealand. SMOG-P and ATL-1 were developed as part of the university curriculum and operated in cooperation with the HA5MRC Technical University amateur radio club. The satellites carry spectrum monitoring payloads and are currently active.

Downlink frequency is 437.175 MHz, modulation is 12500bps GMSK

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Dec 6th 2019

Magyar-OSCAR 105


On December 6th 2019 SMOG-P, an Hungarian 1P picosatellite developed by the Technical University of Budapest was launched on an Electron launch vehicle from the Mahia Launch Complex in New Zealand. SMOG-P and also ATL-1 were developed as part of the university curriculum and operated in cooperation with the HA5MRC Technical University amateur radio club. The satellites carry spectrum monitoring payloads and are currently active.

Downlink frequency is 437.1497 MHz, modulation is 12500bps GMSK.

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Dec 6th 2019



Fossasat-1 is a 5cmx5cmx5cm Pocketcube satellite weighing only 250g. Its mission is to create the worlds first open source IoT network via satellite. It features a LORA repeater and RTTY transmitter. It transmits on 436.700 MHz. After launch it was found out, that the satellite is working fine but that the antennas were not properly deployed. This results in a very weak signal.

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Dec 6th 2019

Duchifat 3


Jointly built by Herzliya Science Center and Sha’ar HaNegev High School students, the Duchifat-3 satellite is designed to serve children from across the country to “observe the Earth”. It transmits 9600 bd telemetry on the downlink frequency 436.400 MHz.

FM Repeater Downlink frequency is 436.420 MHz

FM Repeater Uplink frequency is 145.970 MHz (no tone)

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Dec 11th 2019

FloripaSat 1


FloripaSat-1 is a Brazilian Cubesat built by university students at the Federal University of Santa Catarina (UFSC), Brazil. One of the payload modules was developed at UNSW University in Australia.

FloripaSat-1 features a 1200bd GFSK beacon with a deviation of 2.5kHz and a downlink frequency of 145.90047 MHz. The output power is 1W.

In addition FLORIPSAT-1 tranmits data packets periodically on 436.100 MHz. This downlink uses 2400 bps 2-GFSK modulation with a deviation of 5kHz and a output power of 1W.

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 Dec 18th 2019


Tianqin 1


Tianqin 1/CAS 6 (Chinese Amateur Radio satellite 6) is a Chinese technology development microsatellite for China's gravitational-wave-astronomy program, which carries also a payload for amateur radio communication and education. The satellite was built by DFH Satellite Co. for Zhongshan Daxue (Sun Yat-sen University) and Huahzhong University of Science and Technology. It features a 49 cm × 50 cm × 43 cm cubic body with body mounted solar cells and a mass of approximately 35 kg. This microsatellite is 3 axis stabilized.

CAS6A was launched on December 20th 2019 on a CZ-4B launch vehicle from the Taiyuan Satellite Launch Center, China, into a SSO orbit with an apogee of 629km and inclination of 97.9 degrees.

The inverting linear U/V transponder of CAS-6 with a bandwidth of 20 kHz, an uplink of 435.280 MHz and a downlink of 145.925 MHz was first time activated on June 20th 2020. The call sign is BJ1SO.

In addition BJ1SO features a 4800bd GMSK AX.25 telemetry downlink at 145.890 MHz and a CW beacon at 145.910 MHz.

Presently the beacons are carrier only and the transponder operates with about 2 seconds on , 5 seconds off. Investigations for the root cause are ongoing.

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Dec 20th 2019




Constructed by specialists at Information Satellite Systems and Students at Siberian State Aerospace University, DOSAAF-85 was launched together with 3 Gonets satellites and BLITS-M1 on a Rockot/Breeze-KM launch vehicle from Plesetsk Cosmodrome on December 26th 2019. The satellite failed to separate from the upper stage of the launch vehicle and remains attached. The satellite’s name commemorates the 85th anniversary of the Voluntary Society for the Assistance to the Army, Aviation, and Navy (DOSAAF), the organization responsible for the military training of Soviet youth.

Designated RS-44, or Radio Sputnik 44, the satellite carries a 60 kHz wide inverting V/U linear transponder and a CW beacon. It may also have a S-band downlink between 2400 and 2485 MHz. With an orbit of 1511 km x 1175 km and an inclination of 82.5 degrees, this is presently the highest orbiting functioning amateur satellite available worldwide.

The transponder was first time activated on April 30th 2020 for a test period until May 11th 2020. It seems to work very well and hopefully will stay active for a longer period of time.

Dec 26th 2019

On May 5th 2020 at 20:25 UTC Robert DL5GAC and Charly DK3ZL hat a successful contact via RS-44. Recording kindly provided by Charly DK3ZL.

Shortly after, on May 5th 2020 at 20:32 UTC I received DL5GAC calling CQ and having another QSO. As I was using only a short vertically polarized omni-directional antenna the signals were quite weak but readable.

During the same path I also received some Italian stations including Rocco in IN70VH and I95TEPM in a QSO.

Charly DK3ZL also kindly sent me a recording of the CW beacon, which he had received on May 5th 2020 at 14:30 UTC.




Guatemala’s first satellite, a 1U CubeSat called QUETZAL-1, was deployed from the International Space Station (ISS) on Tuesday, April 28th 2020 using the Japanese KIBO module.

Its primary mission is to test a sensor for remote data acquisition for natural resource management, which could be used to monitor water quality in inland water bodies.

The satellite is part of the Japanese Kibo cubesat program, a product of the cooperation between, among others, the United Nations Office for Outer Space Affairs (UNOOSA), Universidad del Valle de Guatemala (UVG), and more institutions. The operational frequencies were chosen through cooperation from Guatemalan radio amateurs and the International Amateur Radio Union (IARU).

Downlink 4800 bps GMSK on 437.200 MHz.

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April 28th 2020

PY4ZBZ received and decoded the downlink signal of Quetzal-1 on April 28th 2020 at 14:07 UTC during its second orbit. Spectrum plot kindly provided by Roland PY4ZBZ.



RadFxSat-2 was launched on January 17th 2021 on a LauncherOne vehicle.

The satellite carries a telemetry beacon and a linear transponder.

Its beacon downlink is supposed to be at 435.750 MHz and the linear transponder downlink 435.760-435.790 MHz.

The beacon was never heard but there were a few reports that weak downlink signals were heard on the transponder.

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Jan 17th 2021

Magyar-OSCAR 110


SMOG-1, is a PocketQube built by the Budapest University of Technology and Economics. SMOG was launched on March 22nd 2021 on a Soyuz-2-1a Fregat launch vehicle from Baikonur, Kazakhstan. SMOG-1 has a size of 5cm x 5cm x 5cm and carries RF spectrum monitoring experiment measuring the signal levels of digital terrestrial TV transmitters in the frequency range 460-860 MHz. and total ionizing radiation experiments.

SMOG-1 carries a 100mW transmitter with a downlink frequency of 437.345 MHz. Its modulation is 12500bps 2-GMSK. In addition it features a CW morse code telemetry downlink at the same frequency transmitting the callsign, battery voltage and temperature.

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Mar 22nd 2021



DIY-1, a PocketQube built by DIY in Argentina, was launched on March 22nd 2021 on a Siyuz-2-1a Fregat rocket from Baikonur/Kazakhstan into a polar orbit with apogee of 560km and a perigee of 530km. DO-111 has a size of 5cm x 5cm x 5cm and a weight of 125g. DIY-1 carries a deorbiting experiment and a telemetry beacon on 437.125 MHz transmitting 100BD RTTY 7N2, 500bd FSK and CW signals. The output power can be adjusted to 25/50/100mW. The antenna is a dipole antenna.

Mar 22nd 2021

On April 16th 2021 at 10:08 UTC Gustavo LW2DTZ received the RTTY beacon of DY-111. Recording kindly provided by Gustavo LW2DTZ.

On May 12th 2021 at 04:49 UTC Gustavo LW2DTZ received the 500bd FSK beacon of DY-111. Recording kindly provided by Gustavo LW2DTZ.




Launch Date

If you have further recordings from space objects please let me know. I will be happy to add them to my homepage. Many thanks in advance.

Vy 55 & 73 de Matthias DD1US               

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