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Sven Grahn, Sollentuna, Sweden

Sound files and spectral or amplitude images of various satellite signals are provided here:

- Radio signals recorded by Sven Grahn
- Radios signals from other sources
- Tips on how to convert the file format

Radio signals from various satellites recorded near Stockholm, Sweden: ## Soviet/Russian satellites Reconnaisance satellites Cosmos 114, FSK-PDM, 19.995 MHz, April 8, 1966 (53 kB, mp3) TK recovery beacon signals from recoverable Cosmos satellites, 19.995 MHz (80 kB, mp3) TG recovery beacon signals from recoverable Cosmos 384, Dec 22 1970 (75 kB, mp3) Cosmos 177, FSK-PDM, 19.995 MHz (93 kB, mp3) Cosmos 193, FSK-PDM, 19.995 MHz, 26 Nov 1967 at 1130 UT (159 kB, mp3) Cosmos 201, FSK-PDM, 19.995 MHz, 11 February 1968, 1100 UT. (129 kB, mp3) Cosmos 210, FSK-PDM, 19.994 MHz, 7 April 1968, 1120 UT (140 kB, mp3) Cosmos 346, FSK-PDM, 19.995 MHz, June 12, 1970 at 1340 UT (132 kB, mp3) Cosmos 353, wideband telemetry, 66.2 MHz, July 12, 1970 (46 kB, mp3) Cosmos 364, two-tone beacon, 19.989 MHz (32 kB, mp3) Cosmos 376, "morse-code" digital telemetry, 19.150 MHz, November 1970 (68 kB, mp3) Cosmos 1249, FSK-PDM, 19.542 MHz, 26 April 1981, 0730 UT (299 kB mp3) Cosmos 1266, "Pulsed" FSK-PDM, 19.542 MHz, 2 may 1981, 0410 UT (94 kB mp3) Cosmos 2349, PCM/FM telemetry, 1 sec frame, on 150.3 MHz, 18 March 1998 (30 kB mp3) Test flights of manned spacecraft Cosmos 110, FSK-PDM, 19.984 MHz (59 kB, mp3) Cosmos 110, FSK-PDM, 19.894 MHz, 5 March 1966 at 2126 UT (186 kB, mp3) Cosmos 186, CW-PDM, 20.008 MHz, command-off at 1420 UT, October 30, 1967 (57 kB, mp3) Cosmos 212, CW-PDM, 20.008 MHz, command-off at 1744.02 UT, 14 April 1968 (125 kB, mp3) Cosmos 212, CW-PDM, 20.008 MHz, command-off at 1410.49 UT, 15 April 1968 (504 kB, mp3) Cosmos 929, FSK-PDM, 19.954 MHz, September 20, 1977 (62 kB, mp3) Cosmos 1686, FSK-PDM, 19.954 MHz, October 3, 1985 (100 kB, mp3) Manned spacecraft Soyuz-3, CW-PDM telemetry on 20.008 MHz, incl command-off at 1814:26 UT on 29 october 1968. (63 kB, mp3) Soyuz-4, CW-PDM telemetry on 20.008 MHz, incl biomed subcommutation, at about 1600 UT on 16 January 1969. (623 kB mp3) Soyuz 14, voice on 121.75 MHz, Pavel Popovich calling "Zarya ya Berkut", July 3, 1974 (54 kB, mp3) Soyuz 16, voice on 121.75 MHz, A Filipchenko calling "Ya Buran,.." at 1335 UT, Dec 5, 1974 (44 kB, mp3) Salyut 4, CW-PDM, 20.008 MHz, November 21, 1976 (57 kB, mp3) Soyuz 17, voice, 121.75 MHz, Jan 11, 1975. Soyuz 17 in final approach to dock with Salyut 4. (81 kB, mp3) Soyuz 22, voice on 142.4 MHz, September 19, 1976 (34 kB, mp3) Salyut-6, scrambled voice, 121.75 MHz,1604 UT on July 9, 1978 (84 kB, mp3) Salyut-6, de-scrambled voice, 121.75 MHz,1604 UT on July 9, 1978 (117 kB, mp3) Salyut 6, Electro-cardiogramme transmission on voice channel, 121.75 MHz, May 11, 1979 (31 kB, mp3) Soyuz-33, voice on 121.75 MHz, crew using "Saturn" call sign, April 11, 1979 (8 kB, mp3) Soyuz-33, voice on 121.75 MHz, Saturn crew reading landing angles, April 11, 1979, (59 kB, mp3) Soyuz 34, command-verification signals on 925.24 MHz, June 7, 1979 (32 kB, mp3) Soyuz T-14, scrambled voice on 142.417 MHz, 13 November 1985, (208 kB, mp3) Soyuz T-15, first crew enters Mir, calls "TsUP ya Mayak" on 121.75 MHz, 1527 UT, 15 March 1986 (76 kB, mp3) Mir, first voice signals from the station on 143.625 MHz, 1414 UT 16 March 1986 (116 kB mp3). Soyuz TMA-2, Edward Lu talks in English on 121.75 MHz, 0705 UT, 27 April 2003 (34 kB mp3) Soyuz TMA-3, Michael Foale talks in English on 121.75 MHz, 0840 UT, 19 October 2003 (79 kB mp3) Space probes Cosmos 359, failed Venus probe in violent tumble, 66.2 MHz, 0817 UT, August 22, 1970 (17 kB, mp3) Luna-20 return craft, 183.54 MHz, 25 February 1972, (174 kB, mp3) Scientific satellites Cosmos 356, ionospheric beacon, 20.005 MHz (37 kB, mp3) Anti-satellite test Cosmos 1241, ASAT target, signals on 145 MHz, Feb 2, 1981 (18 kB, mp3) Environmental monitoring satellites OKEAN 1, image transmission on 466.5 MHz, January 7, 1990 (28 kB, mp3) Telecom satellites Molniya 1-93, sweeping carrier on 1000.44 MHz, July 26, 2006 (24 kB, mp3) ## Chinese spacecraft China 1, tone telemetry and tune "The East is Red", 20.009 MHz, 25 April, 1970 (97 kB, mp3) China 2, 10 sec telemetry frame, 20.009 MHz (41 kB, mp3) China 2, 15 sec telemetry frame with 5 sec subframes, 20.009 MHz (55 kB, mp3) China 2, 5 sec PPM telemetry frame, 19.995 MHz (78 kB, mp3), Picture of signal. ZY-2, 3.3 sec telemetry frame, 179.971 MHz, 1010 UT, 24 September 2000, (28 kB, mp3) Picture of signal. ## US spacecraft Skylab Orbital Workshop, 1755 UT, May 14,1973, 230.4 MHz (42 kB, mp3) Skylab Orbital Workshop, 2135 UT, June 22,1978, 237.0 MHz (24 kB, mp3) Navigation satellite OSCAR-27, 149.985 MHz, 15 January 2000 (36 kB, mp3) ## Other satellites MU-Sat, (96-50C) tone-modulated Morse-code on 137.95 MHz. The signal is a burst of CW code of aprox. 7 seconds in duration, repeated each 90 seconds. It starts: "HI HI DE MUSAT....", Jan 12, 1997, 1441-1449 UT (33 kB mp3) International Space Station, voice on 143.625 MHz, Bill Shepherd thanking ground crews, 1227 UT, 2 Nov 2000 (92 kB, mp3) International Space Station, voice on 143.625 MHz, crew talks to TsUP, 1027 UT, 4 Nov 2000 (88 kB, mp3) MAROC-TUBSAT, morse-code on 144.1 MHz, 23 January 2002 (95 kB mp3) International Space Station, Mark Shuttleworth reporting on 143.625 MHz, 0825 UT, 28 April 2002 (323 kB mp3) International Space Station, Soyuz crew reporting their arrival 130.167 MHz, 0628 UT, 1 Nov 2002 (251 kB mp3) International Space Station, relay of TsUP uplink to Soyuz TMA-2 on 130.167 MHz, 0545 UT, 28 April 2003 (156 kB mp3)
Radio signals from satellites and space vehicles from other sources U.S. spacecraft and space vehicles Explorer-1, 108.00 MHz, Feb 11, 1958, recorded by Roy Welch at 0100 UT (16 kB mp3). Picture of signal. Vanguard-1, 108 MHz recorded by Roy Welch in 1958 (31kB mp3) SCORE, President Eisenhower's message to the world, Dec 19, 1958 at 2015 UT, 132.435 MHz (107 kB mp3) Explorer-7, PAM/FM/AM telemetry on 19.9904 MHz (25 kB mp3). (Picture of signal) Mercury-Atlas-8 voice, astronaut Walter Schirra, 15.016 MHz, 3 Oct 1962, recording by R.S. Flagg, in Vermont (115 kB, mp3) Atlas launch vehicle telemetry, 215-260 MHz, recorded in the 60's by U of Florida Student Satellite Tracking Station (14 kB, mp3) Centaur upper stage telemetry, 215-260 MHz, recorded in the 60's by U of Florida Student Satellite Tracking Station (23 kB, mp3) ATDA (Gemini-9 target) telemetry, 215-260 MHz, recorded in the 60's by U of Florida Student Satellite Tracking Station (172 kB, mp3) Apollo-17 voice in earth orbit, 296.8 MHz, 0708 UT on Dec. 7, 1972, recorded by R. S. Flagg in Titusville, Florida. (71 kB, mp3) Apollo-17 voice in lunar orbit, 2287.5 MHz, 12 December 1972, recorded by R.S. Flagg at Biven's Arm, Gainesville, Florida. (10 kB, mp3) Soviet/Russian manned spacecraft Vostok-1 voice, Gagarin to Zarya-1 during launch phase, 143.625 MHz (?), 12 April 1961, Composite of official Soviet recording (168 kB, mp3) Vostok-3 voice, greetings to Scandinavian peoples, 20.006 MHz, 1338 UT, 13 August 1962, recording by Terje Isberg (57 kB, mp3) Vostok-5 voice, V Bykovsky talks to N. S. Khrushchev, 20.006 MHz, 1633 UT, 14 June 1963, recording by Chris van den Berg (135 kB, mp3) Vostok-5 biomed radio beacon, 19.948 MHz, 14 June 1863, recording by Chris van den Berg (41 kB, mp3) Vostok-6 biomed radio beacon, 19.995 MHz, June 1863, recording by the Kettering Grammar School (19 kB, mp3) Vostok-6 voice, V Tereshkova calls Vjezna-1, 20.006 MHz, June 1963 (33 kB, mp3) Voskhod-1 biomedical telemetry, 19.994 MHz, 0900 UT, October 12, 1964, recording by G.E Perry in Kettering, U.K. (30 kB, mp3) Voskhod-1 voice, 18.035 MHz, 1337 UT, October 12, 1964, recording by G.E Perry in Kettering, U.K. (17 kB, mp3) Voskhod-1 voice, 18.035 MHz, 0155 UT, October 13, 1964, recording by R.S. Flagg in Gainesville Fla.(38 kB, mp3) Voskhod-1 Morse-code, 18.035 MHz, 0155 UT, October 13, 1964, recording by R.S. Flagg in Gainesville Fla.(86 kB,mp3) Voskhod-1 biomedical telemetry, 19.9944 MHz, October 12, 1964, recording by Dieter Oslender, Bonn, Germany.(71 kB, mp3) Voskhod-2 biomedical telemetry, 19.996 MHz, 1755 UT, March 18, 1965, recording by the Kettering Grammar School (37 kB, mp3) Voskhod-2 voice, ground station Vjezna-3 calls Almaz, 17.365 MHz, 0716 UT, 18 March 1965 (45 kB, mp3) Voskhod-2 voice, Almaz answers Vjezna-3, 17.365 UT, 0716 UT, 19 March 1965 (24 kB, mp3) Soyuz-1 voice, 18.035 MHz, V. Komarov hails Communist Party, 0510 UT, April 23, 1967, recording found by Markus Mehring (107 kB, mp3) Vjezna-1 to Soyuz-6 (Antei),CW followed by voice, 22.205 MHz, October 1969, recording by Chris van den Berg (60 kB and 16 kB, mp3) Vjezna-1 to Soyuz-6 (Antei), 22.205 MHz, 1145 UT, 15 October, 1969, recording by Chris van den Berg (225 kB, mp3) Vjezna-1 to Soyuz-6 (Antei), Radiogram for Shonin, 22.205 MHz, 1310 UT, 15 October, 1969, recording by Chris van den Berg (272 kB, mp3) Soyuz-14 call to Vjezna on 20.008 MHz on 5 July 1974, rx by George Bailey in Sherwood, Arkansas (198 kB mp3) Soyuz-21, 121.75 MHz, "Zarya ya Baikal", recorded by Mark Severance in Fort Worth, Texas. (53 kB mp3) Soyuz-33, 121.75 MHz, Bulgarian Georgi Ivanov, recording: Mark Severance in Fort Worth, Texas, 0101 UT, April 12, 1979, (106 kB, mp3) Salyut-6/Soyuz-27 call to tracking ship Yuri Gagarin, 121.75 MHz, rx by George Bailey in Sherwood, Arkansas (47kB mp3) Other Soviet/Russian spacecraft Sputnik-3, 20.005 MHz (38 kB mp3) Polyot-1 FSK-PDM signals on 19.945 MHz, recorded by Dieter Oslender. (53 kB mp3) Cosmos 69, FSK-PDM on 19.995 MHz, 29 June 1965, 1402.01 UT, recording and voice caption by Geoff Perry (144 kB, mp3) Luna-10, transmission of the tune "The International", 3 April 1966, 183.5 MHz. (38 kB mp3) Proton-1, FSK-PDM on 19.910 MHz, recording by the Kettering Grammar School (52 kB, mp3) Proton-4, FSK-PDM on 19.910 MHz, recording by Richard S Flagg in Gainesville Fla (89 kB, mp3) Progress M1-2, TORU remote control signals on 121.75 MHz, at 2115-2122 UT, 27 April 2000 (58 kB, mp3)

Files are provided in mp3 format. Here is how you can generate WAV-files yourself: Start your media player Start an audio editing and recording software like Adobe Audition Run the mp3 file in the media player and run the audio editing software in record mode at the same time In this way you can obtain a WAV-copy of the real file. The fidelity is not the same as the original recording, but you can manipulate the WAV file, frequency analyze it etc..

[Sven's Space Place]
Copyright © 1996 Sven Grahn