Sounds from Space


Sounds from Amateur Radio Satellites 2017-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, Roland PY4ZBZ, 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 and Jean-Pierre F5YG for kindly contributing to this collection !




Launch Date


ITF-2 (Imagine The Future - 2) is a 1U cubesat designed and built by the University of Tsukuba in Japan. It was deployed from ISS with the new JEM Small Satellite Orbital Deployer (J-SSOD) on January 16th 2017 between 09:00 and 09:30 UTC. ITF-2 is the successor of the unsuccessful ITF-1, which was launched in 2014 but never heard.

The amateur radio downlink frequency is 437.525 MHz (1200bps AFSK and CW).

January 16th 2017

Francisco EA7ADI received the CW beacon signal of ITF-2 on 437.525 MHz on January 28th 2017 at 19:57 UTC. Recording kindly provided by Francisco EA7ADI.

This is another recording from Francisco EA7ADI. He received the CW beacon signal of ITF-2 on 437.525 MHz on January 31st 2017 at 17:12 UTC. Recording kindly provided by Francisco EA7ADI.


WASEDA-SAT3 is a 1kg 1U cubesat built by Waseda University in Japan. It was deployed from ISS with the new JEM Small Satellite Orbital Deployer (J-SSOD) on January 16th 2017 between 09:00 and 09:30 UTC. The small satellite will deploy a ultra light drag chute for accelerated deorbiting. A camera will observe and verify the chute deployment. Also on board will be a LCD projector to project images on the drag chute, where the camera will take pictures of it.

WASEDA-SAT3 features a downlink at 437.290 MHz (1200 bps PCM-FSK and CW).

I am searching for sound files. Please send them to

January 16th 2017


AOBA-VELOX-3 is a 2.3kg 2U cubesat deployed from ISS with the new JEM Small Satellite Orbital Deployer (J-SSOD) on January 16th 2017 between 10:30 and 11:00 UTC. It is a joint Singaporean and Japanese nanosatellite mission.

It will test a micro-propulsion system by Nanyang Technological University, Singapore  (NTU) which uses pulses of plasma to generate thrust. The NTU team estimates that the system can keep the nanosatellite in space for up to six months, about twice as long as the usual three-month flight time for such satellites.

Furthermore it will be used to test a wireless communication system built by Kyushu Institute of Technology, Japan (Kyutech). The system is based on affordable 2.4 GHz Zigbee technology. If successful, future satellite missions could use this wireless technology to help the satellite's different systems communicate with one another, reducing the need for wires in the satellite.

The VHF control uplink is in the 145 MHz ham radio band, the UHF downlink is at 437.375 MHz where AOBA-VELOX-III will transmit data with 1200 bps AFSK and also features a CW beacon.

January 16th 2017

Jean-Pierre F5YG received the CW downlink signal of AOBA-VELOX-3 during its orbit #28 on January 18th 2017. Recording kindly provided by Jean-Pierre F5YG.

On January 21st 2017 at 02:58 UTC during orbit #71 Jean-Pierre received the CW downlink signal of AOBA-VELOX-3 at 437.3727 MHz. Recording kindly provided by Jean-Pierre F5YG.

Francisco EA7ADI received the CW beacon signal of AOBA VELOX III on 437.375 MHz on January 27th 2017 at 19:11 UTC. Recording kindly provided by Francisco EA7ADI.


TuPOD is a 3.5 kg 3U cubesat built by Gauss Srl. in Italy. It was be deployed from ISS with the new JEM Small Satellite Orbital Deployer (J-SSOD) on January 16th 2017 between 10:30 and 11:00 UTC. Inside TuPOD are two Tubesat class picosatellites, Tancredo1 from Brazil and OSNSAT from California/USA.

The TuPOD released the two satellites after three days, on January 19th 2017 around 23:30 UTC, in accordance with NASA safety requirements. After the tubesat deployment, TuPOD will perform its own mission transmitting 1200 bps GMSK data and a Morse code beacon on 437.425 MHz for a few days. Some weeks later it will re-enter the atmosphere, disintegrating. From a technical point of view the satellite represents an innovation since its structure has been completely 3D printed.

I am searching for sound files. Please send them to

January 16th 2017


The Tancredo-1 satellite, a small TubeSat built by middle school students in Brazil, was deployed from ISS with the new JEM Small Satellite Orbital Deployer (J-SSOD) on January 16th 2017 between 10:30 and 11:00 UTC inside the TuPOD Tubesat deployer. Tancredo-1 was finally ejected from the TuPOD into space on January 19th 2017 around 23:30 UTC. It should have then started transmitting telemetry data on 437.200 MHz using 1200 bps AFSK AX.25. The callsign is PY0ETA.

Tancredo-1 is the first satellite of the Ubatubasat project, a STEM project idealized by Prof. Cândido Oswaldo de Moura at Escola Municipal Tancredo Neves public school in Ubatuba, state of Sao Paulo, Brazil. The Ubatubasat project team and AMSAT-BR would like to kindly request radio amateurs around the planet to monitor and report any signals heard from Tancredo-1.

I am searching for sound files. Please send them to

January 16th 2017

Emirates-Oscar 88

Nayif-1 is a 1U cubesat of the United Arab Emirates (UAE). UAE's first Nanosatellite was developed by Emirati engineering students from the University of Sharjah (AUS) under the supervision of a team of engineers and specialists from Mohammed bin Rashid Space Centre (MBRSC). The framework of the partnership between the two entities aims to provide hands-on experience to engineering students on satellite manufacturing. It was launched on the PSLV C37 vehicle on February 15th 2017 at 03:58 UTC.

The spacecraft includes a U/V linear transponder and telemetry transmitter. It employs enhanced oscillator circuitry and includes an active attitude determination and control system.

Telemetry is transmitted on 145.940 MHz in 1200bd BPSK mode.

The linear transponder frequencies are:
Uplink 435.045-435.015 MHz
Downlink 145.960-145.990 MHz

February 15th 2017

Luciano PY5LF received the downlink signal of NAYIF-1 on February 15th 2017 at 12:02 UTC on 145.940 MHz. Recording kindly provided by Luciano PY5LF.

Also Francisco EA7ADI received the 1200bd BPSK downlink signal of NAYIF-1 on February 16th 2017 at 09:56 UTC on 145.940 MHz. Recording kindly provided by Francisco EA7ADI.


This is Jordan's first satellite to be launched in space. It will carry a 435/145 MHz linear transponder. This cubesat will also transmit SSTV images. It was built by a multi-disciplinary team of engineering students in cooperation with ISISpace.

planned for 2017

Max Valier Sat

Max Valier Sat is a 15 kg nanosatellite with an X-ray astronomy payload and an amateur radio payload. It is built in collaboration by the Gewerbeoberschule "Max Valier" Bozen, the Gewerbeoberschule "Oskar von Miller" Meran and the Amateurastronomen "Max Valier". The Max Planck Institut für extraterrestrische Physik Garching provides the small X-ray telescope µRosi, which allows amateur astronomers for the first time to see the sky in X-ray wavelength. OHB-System provides support and the launch opportunity on an indian PSLV rocket. Its communication payload includes:
Downlink 145.860 MHz
Beacon: 145.960 MHz mode CW

planned for 2017


Venta-1 is Latvia's first satellite. The 7.5 kg satellite is built in cooperation of students and German OHB Systems. It features a CW-Beacon on 437.325 MHz and also an S-band high speed data downlink with a data rate of up to 1 Mbit/s.

It is planned to be launched on an Indian PSLV-C34 rocket together with Max Valier Sat. However after launch of this rocket no reports were given and it is unclear whether the 2 satellites were launched.

planned for 2017


2U Cubesat built by the University of Patras. I features a 9600bpsk FSK downlink on 435.800 MHz. It will be delivered to the ISS by Orbital ATK and then deployed by the NanoRacks deployment pod aboard the ISS.

planned for 2017


AMSAT-NA plans a Lunar Mission with a 5 Ghz to 10 GHz transponder. Heimdallr is a 3 axis stabilized 6U CubeSat with a mass of approximately 8kg. It will have a Cold Gas Thruster for inertia dump and a star tracker for navigation. Deployable, gimbled solar panels will produce up to 100 watts of DC power, electric propulsion will be used to achieve lunar orbit. There will be a combination of omni and directional patch antennas on one side of spacecraft. The first part of mission is to provide Telemetry, Tracking, and Command (TT&C) to obtain lunar orbit. The second part is to perform the data downlink experiment while the final part is to provide a two way regenerative repeater and analog repeater in lunar orbit for lifetime of satellite.

Proposing these downlinks:
• Omni transponder: 10.451 GHz +/- 0.5 MHz
• Directional transponder: 10.4575 GHz. +/- 3.5 MHz
• Analog transponder: 10.4665 GHz. +/- 2.0 MHz

For the first part of the mission (TT&C) using 300 bps BPSK 1/2 rate viterbi Ranging 1.5 Mbps BPSK DSSS. For the  second part of mission 4.5 Mbps QPSK ½ rate DVB-S2. For the final part of mission 25 kbps BPSK 1/5 rate DVB-S2.

Proposing these Uplinks:
• Omni transponder: 5.651 GHz +/- 0.5 MHz
• Directional transponder: 5.6575 GHz. +/- 3.5 MHz
• Analog transponder: 5.665 GHz. +/- 2 MHz

It is anticipated that a 1 or 2 metre dish will be required using the AMSAT designed ground station equipment.

planned for September 2018


RadFxSat is one of four CubeSats making up the NASA ELaNa XIV mission, riding as secondary payloads aboard the Joint Polar Satellite System (JPSS)-1 mission. JPSS-1 will launch on a Delta II from Vandenberg Air Force Base, California. RadFxSat is a partnership with Vanderbilt University ISDE and hosts four payloads for the study of radiation effects on commercial off the shelf components. RadFxSat features the Fox-1 style FM U/v repeater with an uplink on 435.250 MHz (67.0 Hz CTCSS) and a downlink on 145.960 MHz. Satellite and experiment telemetry will be downlinked via the "DUV" subaudible telemetry stream and can be decoded with the FoxTelem software.

not before end of 2017



Es'hailSat-2 is a commercial communications satellite of Qatar which carries an amateur radio payload planned by AMSAT-DL. The satellite will be launched into a geostationary orbit and positioned at 25,5° East. Es'hailSat-2 will allow long distance contacts from the east coast of South America, all over Europe and Africa, the middle East most of China and Russia. You will get a map with the Earth coverage if you click to the icon on the right. There will be two non-inverting ham-radio transponders: a narrowband (250 kHz) and a wideband (8 MHz) amateur radio transponders with the following up- and downlinks:
Narrowband (SSB, CW, SSTV) transponder:
Uplink: 2400.050 -2400.300 MHz RHCP
Downlink: 10489.550 - 10489.800 MHz LVP
Wideband (DATV, high speed data) transponder:
Uplink: 2401.500 -2409.500 MHz RHCP
Downlink: 10491.000 - 10499.000 MHz LHP
EIRP at the edge of coverage (EoC) will be 35dBW
G/T at the edge of coverage (EoC) will be -12dB/°K
With the position on 25,5° East direction from my QTH will be Azimuth 155,8° and Elevation 32°. If you have an unobstructed view to Astra on 19,2° East (here Azimuth 163,8° and Elevation 33,6°) you will most likely also be able to "see" Es'hailSat-2.
Es'hailSat-2 will be launched end of 2017 by SpaceX on a Falcon-9 rocket.

planned for 2018


AMSAT-NA has accepted the opportunity to be a “hosted payload” on a spacecraft that Millennium Space Systems (MSS) of El Segundo, California, is under contract to design, launch, and operate for the US government. This spacecraft is expected to be initially located over America around 74° West and later it will be parked over Australia. The satellite’s potential footprint could extend over the US from the Mid-Pacific to Africa. It is not yet clear whether its footprint will cover the very Western part of Europe. Most likely it will not be able to be operated from Germany. The transponder will use digital modulation schemes with FDMA up and TDMA down. Downlink modulaton will be QPSK/OK-QPSK up to 10 Mbit/s. Mosst likely there will be no linear transponder on this satellite. The following up- and downlink frequency bands are presently envisioned:
Uplink 5655 -5665 MHz
Downlink: 10455 - 10465 MHz

not yet scheduled, not before 2018




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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