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, 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, Jean-Pierre F5YG, Remco PA3FYM, Dave G0CER, Jose Maria EA2JX and Viljo ES5PC 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.


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.

originally planned for Sept. 2018, planned for 2019


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 in the up- and TDMA in the downlink. Downlink modulaton will be QPSK/OK-QPSK up to 10 Mbit/s. Most 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

originally schduled for mid 2017, no new schedule yet available




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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