Satellite

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Click the name of a signal to see more detailed information, possible decoding, and additional sound and waterfall samples

Color Legend
Inactive
(No longer in use) 		Active
(Currently in active use) 		Status
Unknown or Intermittent
Signal Name Description Frequency Mode Modulation Bandwidth Location Sample Audio Waterfall image
AMSAT-P3D AMSAT-P3D (Known as Phase 3D, OSCAR-40, and AO-40) is a amateur radio satellite built by AMSAT. As of 2004, the satellite's systems have failed. 145.805 MHzMegaHertz (MHz) 10^6 Hz — 24,048.285 MHzMegaHertz (MHz) 10^6 Hz USBUpper Side Band Modulation (Radio, referring to reception and modulation mode)Universal Serial Bus (Computer, referring to USB Ports and cables) PSKPhase-Shift Keying 1.6 kHzKiloHertz (kHz) 10^3 Hz Worldwide SAT 40.jpg
ARGOS A-DCS Data collection system carried onboard polar-orbiting weather satellites 465.99 MHzMegaHertz (MHz) 10^6 Hz USBUpper Side Band Modulation (Radio, referring to reception and modulation mode)Universal Serial Bus (Computer, referring to USB Ports and cables) PSKPhase-Shift Keying 54 kHzKiloHertz (kHz) 10^3 Hz Worldwide KMS4-Waterfall.jpg
Automatic Picture Transmission (APT) Automatic Picture Transmission (APT), also known as NOAA-GEOSAT, is an analog image transmission mode used by the NOAA weather satellites and some Russian weather satellites to transmit satellite weather photos. 137.1 MHzMegaHertz (MHz) 10^6 Hz — 137.913 MHzMegaHertz (MHz) 10^6 Hz WFMWideband Frequency Modulation, WFMWideband Frequency Modulation AMAmplitude Modulation 34 kHzKiloHertz (kHz) 10^3 Hz Worldwide APT NOAA.jpg
BlueWalker-3 Wideband Telemetry Wideband telemetry signal from BlueWalker-3 experimental satellite. 2,245 MHzMegaHertz (MHz) 10^6 Hz RAW BPSKBinary Phase-Shift Keying (1 bit per symbol) 1 MHzMegaHertz (MHz) 10^6 Hz Worldwide — BW3WB.png
CAS-4A/B Satellite Telemetry CAS-4A/B Satellite 4.8 kbpsKilobits per second (kbps) GMSKGaussian Minimum-Shift Keying Telemetry Downlink. 145.835 MHzMegaHertz (MHz) 10^6 Hz — 145.89 MHzMegaHertz (MHz) 10^6 Hz NFMNarrowband Frequency Modulation GMSKGaussian Minimum-Shift Keying 10 kHzKiloHertz (kHz) 10^3 Hz Worldwide CAS4B2.png
CLOUDSAT Downlink Dump to European ground station from the CLOUDSAT cloud profiling satellite. 2,217.5 MHzMegaHertz (MHz) 10^6 Hz RAW BPSKBinary Phase-Shift Keying (1 bit per symbol) 2 MHzMegaHertz (MHz) 10^6 Hz Europe — Cloudsat dump.png
CORIOLIS Tactical Direct Broadcast Direct Broadcast digital signal from the CORIOLIS satellite, primarily carries data from the WindSat instrument. 2,221.5 MHzMegaHertz (MHz) 10^6 Hz RAW BPSKBinary Phase-Shift Keying (1 bit per symbol) 2 MHzMegaHertz (MHz) 10^6 Hz Worldwide — CORIOLIS DB.png
Delfi-C3 Telemetry Delfi-C3 Telemetry is a telemetry signal sent from the Delfi-C3 university-class satellite. 145.87 MHzMegaHertz (MHz) 10^6 Hz LSBLower Side Band Modulation BPSKBinary Phase-Shift Keying (1 bit per symbol) 10 kHzKiloHertz (kHz) 10^3 Hz Worldwide Delfi-C3.jpg
ELEKTRO-L GGAK-E Direct Broadcast Broadcasts the data from the GGAK-E cosmic ray detector onboard ELEKTRO-L geostationary weather satellites 1,693 MHzMegaHertz (MHz) 10^6 Hz DSBDual Side Band Modulation FSKFrequency-Shift Keying 15 kHzKiloHertz (kHz) 10^3 Hz Asia, Europe ELEKTRO-L N2 BCN.png
FUNcube-1 Telemetry FUNcube-1 Telemetry is a telemetry signal sent from the Funcube-1 Cubesat amateur radio satellite. 145.935 MHzMegaHertz (MHz) 10^6 Hz USBUpper Side Band Modulation (Radio, referring to reception and modulation mode)Universal Serial Bus (Computer, referring to USB Ports and cables) PSKPhase-Shift Keying 2 kHzKiloHertz (kHz) 10^3 Hz Worldwide FUNcube.jpg
GOES Data Colection System (DCS) Comes from the geostationary satellites GOES 16 and GOES 17. Relays information about water levels, lightning strikes, and other information. 1,679.9 MHzMegaHertz (MHz) 10^6 Hz — 1,680.2 MHzMegaHertz (MHz) 10^6 Hz USBUpper Side Band Modulation (Radio, referring to reception and modulation mode)Universal Serial Bus (Computer, referring to USB Ports and cables) 8PSK8-Phase Phase-Shift Keying (3 bits per symbol) 300 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). — 1.2 kHzKiloHertz (kHz) 10^3 Hz Worldwide GoesDCS300bd.jpeg
Global Positioning System (GPS) GPS is a satellite based navigation system that provides time and location services to receiving devices. 1,176.45 MHzMegaHertz (MHz) 10^6 Hz — 1,575.42 MHzMegaHertz (MHz) 10^6 Hz BPSKBinary Phase-Shift Keying (1 bit per symbol), QAMQuadrature Amplitude Modulation, DSSS 11 MHzMegaHertz (MHz) 10^6 Hz — 15.345 MHzMegaHertz (MHz) 10^6 Hz Worldwide — NoWaterfallFiller.png
Gonets Gonets (Russian Гонец, for Messenger) is a Russian civilian low Earth orbit communications satellite system. 265 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). — 388 MHzMegaHertz (MHz) 10^6 Hz NFMNarrowband Frequency Modulation GMSKGaussian Minimum-Shift Keying 20 kHzKiloHertz (kHz) 10^3 Hz Worldwide Gonet.png
HORYU-4 Telemetry 437.375 MHzMegaHertz (MHz) 10^6 Hz USBUpper Side Band Modulation (Radio, referring to reception and modulation mode)Universal Serial Bus (Computer, referring to USB Ports and cables) BPSKBinary Phase-Shift Keying (1 bit per symbol) Worldwide HORYU-4 Telemetry Waterfall2.png
ICARUS (International Cooperation for Animal Research Using Space) ICARUS aims its services primarily at scientific groups that perform basic and application-oriented research with migrating animals. 468.1 MHzMegaHertz (MHz) 10^6 Hz NFMNarrowband Frequency Modulation PSKPhase-Shift Keying 32 kHzKiloHertz (kHz) 10^3 Hz Worldwide ICARUS.jpg
Inmarsat Aero Inmarsat Aero is the protocol that's used to link ground stations with aircraft via Inmarsat's satellite link. This protocol carries digital voice, fax and low speed data such as ACARS and ADS-C. 1,545 MHzMegaHertz (MHz) 10^6 Hz — 3,687 MHzMegaHertz (MHz) 10^6 Hz USBUpper Side Band Modulation (Radio, referring to reception and modulation mode)Universal Serial Bus (Computer, referring to USB Ports and cables) PSKPhase-Shift Keying 800 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). — 10.5 MHzMegaHertz (MHz) 10^6 Hz Worldwide Inmarsat Aero.jpg
Inmarsat IsatM2M IsatM2M Service operated by Inmarsat on existing Inmarsat-D/D+ infrastructure. 1,525 MHzMegaHertz (MHz) 10^6 Hz — 1,559 MHzMegaHertz (MHz) 10^6 Hz USBUpper Side Band Modulation (Radio, referring to reception and modulation mode)Universal Serial Bus (Computer, referring to USB Ports and cables) MFSKMultiple Frequency Shift-Keying 1.024 kHzKiloHertz (kHz) 10^3 Hz Worldwide Inmarsat-D.jpg
Inmarsat-C TDM Inmarsat C provides two-way data and messaging communication services to and from virtually anywhere in the world. The low-cost terminals and antennas are small enough to be fitted to any size of ship. 1,537.7 MHzMegaHertz (MHz) 10^6 Hz — 1,539.685 MHzMegaHertz (MHz) 10^6 Hz USBUpper Side Band Modulation (Radio, referring to reception and modulation mode)Universal Serial Bus (Computer, referring to USB Ports and cables) PSKPhase-Shift Keying 2.5 kHzKiloHertz (kHz) 10^3 Hz Worldwide Inmarsat TDM NCS.jpg
Inmarsat-D(D+) Downlink Inmarsat D+ (and it's predecessor, Inmarsat D) was Inmarsat's satellite paging system. The main use of the technology was in tracking trucks and buoys and SCADA applications. 1,525 MHzMegaHertz (MHz) 10^6 Hz — 1,559 MHzMegaHertz (MHz) 10^6 Hz USBUpper Side Band Modulation (Radio, referring to reception and modulation mode)Universal Serial Bus (Computer, referring to USB Ports and cables) MFSKMultiple Frequency Shift-Keying 640 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). Worldwide Inmarsat D.jpg
Iridium This is the L-band uplink/downlink for the Low Earth Orbit Iridium Satellite Constellation. This system is used for satellite based phone calls. 1,616 MHzMegaHertz (MHz) 10^6 Hz — 1,626.5 MHzMegaHertz (MHz) 10^6 Hz RAW PSKPhase-Shift Keying 31.5 kHzKiloHertz (kHz) 10^3 Hz Worldwide IridiumTDMA.png
IsatData Pro Inmarsat's M2M data service for SCADA asset tracking and reporting. 1,525 MHzMegaHertz (MHz) 10^6 Hz — 1,559 MHzMegaHertz (MHz) 10^6 Hz Worldwide — NoWaterfallFiller.png
LEOSAR Downlink Cospas-Sarsat downlink from polar orbiting weather satellites 1,544.5 MHzMegaHertz (MHz) 10^6 Hz NFMNarrowband Frequency Modulation PSKPhase-Shift Keying 350 kHzKiloHertz (kHz) 10^3 Hz Worldwide LEOTIT.png
Low Rate Picture Transmission (LRPT) The Low Rate Picture Transmission (LRPT) is a digital transmission system, commonly transmitted by METEOR-M satellites, used to deliver weather images and data. 137 MHzMegaHertz (MHz) 10^6 Hz — 138 MHzMegaHertz (MHz) 10^6 Hz RAW QPSKQuadrature Phase-Shift Keying (2 bits per symbol) 120 kHzKiloHertz (kHz) 10^3 Hz Worldwide — LRPTWaterfall.jpg
METEOR-M High Resolution Picture Transmission (HRPT) A variant of the NOAA HRPT signal, which has a different data structure and better low-signal handling characteristics. 1,700 MHzMegaHertz (MHz) 10^6 Hz RAW PSKPhase-Shift Keying 3 MHzMegaHertz (MHz) 10^6 Hz Worldwide — METEOR HRPT WF.png
METOP Advanced High Resolution Picture Transmission (AHRPT) A high-speed digital link used by METOP weather satellites for direct data dissemination. 1,701.3 MHzMegaHertz (MHz) 10^6 Hz — 1,707 MHzMegaHertz (MHz) 10^6 Hz RAW QPSKQuadrature Phase-Shift Keying (2 bits per symbol) 6 MHzMegaHertz (MHz) 10^6 Hz Worldwide — METOP-AHRPT-WF.png
Meteosat WEFAX Meteosat WEFAX is a WEFAX used to transmit satellite images via Meteosat Satellites. WEFAX was introduced with the first Meteosat in 1977. 1,691 MHzMegaHertz (MHz) 10^6 Hz FMFrequency Modulation AMAmplitude Modulation, FMFrequency Modulation Worldwide Waterfall1.png
Milstar UHFUltra High Frequency (300-3000 MHz) FHSS Downlink of Milstar, a US joint military service satellite communications system that provides secure, jam resistant, worldwide communications. Nicknamed 'Waterdroplets' for it's characteristic waveform and sound. 243.785 MHzMegaHertz (MHz) 10^6 Hz — 243.822 MHzMegaHertz (MHz) 10^6 Hz RAW FHSS 50 kHzKiloHertz (kHz) 10^3 Hz Worldwide Milstar FHSS.jpg
NOAA Direct Sounder Broadcast (DSB) The Direct Sounder Broadcast (DSBDual Side Band Modulation) is an auxiliary telemetry downlink from NOAA Polar Operational Environmental Satellites (POES), transmitted alongside Automatic Picture Transmission (APT) broadcasts. 137.35 MHzMegaHertz (MHz) 10^6 Hz — 137.77 MHzMegaHertz (MHz) 10^6 Hz NFMNarrowband Frequency Modulation PSKPhase-Shift Keying 33.5 kHzKiloHertz (kHz) 10^3 Hz Worldwide DSB.jpg
NOAA ITOS High Resolution Picture Transmission (HRPT) An analog signal broadcast from NOAA ITOS polar satellites that transmitted images from the VHRR radiometer. 1,697.5 MHzMegaHertz (MHz) 10^6 Hz WFMWideband Frequency Modulation FMFrequency Modulation 1 MHzMegaHertz (MHz) 10^6 Hz Worldwide — NOAA ITOS HRPT WF.png
NOAA POES High Resolution Picture Transmission (HRPT) A digital link to transmit images and other data collected from the satellite at a high resolution. 1,698 MHzMegaHertz (MHz) 10^6 Hz — 1,707 MHzMegaHertz (MHz) 10^6 Hz RAW PSKPhase-Shift Keying 3 MHzMegaHertz (MHz) 10^6 Hz Worldwide — NOAA-HRPT-WF.png
OrbComm Mobile Telephony Orbcomm digitized mobile satellite-based telephone signal intercepted over Hawaii, preceding NOAA 19 pass. 137.2 MHzMegaHertz (MHz) 10^6 Hz — 137.46 MHzMegaHertz (MHz) 10^6 Hz NFMNarrowband Frequency Modulation UNK 0 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). — 15 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). Worldwide Watervall.png
Orbcomm Orbcomm satellites are used for monitoring and sending short text messages. 137 MHzMegaHertz (MHz) 10^6 Hz — 150 MHzMegaHertz (MHz) 10^6 Hz NFMNarrowband Frequency Modulation PSKPhase-Shift Keying 15 kHzKiloHertz (kHz) 10^3 Hz Worldwide ORBCOMM.jpg
PROBA 1/2 Downlink Dump of satellite data to Redu, Belgium groundstation from the PROBA 1 and 2 ESA satellites. 2,235 MHzMegaHertz (MHz) 10^6 Hz RAW BPSKBinary Phase-Shift Keying (1 bit per symbol) 4 MHzMegaHertz (MHz) 10^6 Hz Europe (when satellite has line of sight to Redu, Belgium) — Schermata del 2022-12-26 12-20-13.png
QO-100-modem High speed modem for qo-100 amateur satellite narrow transponder. 10,489.5 MHzMegaHertz (MHz) 10^6 Hz — 10,490 MHzMegaHertz (MHz) 10^6 Hz USBUpper Side Band Modulation (Radio, referring to reception and modulation mode)Universal Serial Bus (Computer, referring to USB Ports and cables) QPSKQuadrature Phase-Shift Keying (2 bits per symbol), BPSKBinary Phase-Shift Keying (1 bit per symbol), APSK 2.7 kHzKiloHertz (kHz) 10^3 Hz QO-100 footprint Qo-100 modem 1.JPG
SiriusXM Satellite Radio SiriusXM Satellite Radio: Terrestrial Repeater Signal 2,332.5 MHzMegaHertz (MHz) 10^6 Hz — 2,345 MHzMegaHertz (MHz) 10^6 Hz RAW OFDMOrthogonal Frequency-Division Multiplexing, PSKPhase-Shift Keying 12.5 MHzMegaHertz (MHz) 10^6 Hz United States XM Sattelite Radio.PNG
Soyuz-MS spacecraft telemetry PCM-FMFrequency Modulation Soyuz-MS spacecraft telemetry. 166 MHzMegaHertz (MHz) 10^6 Hz USBUpper Side Band Modulation (Radio, referring to reception and modulation mode)Universal Serial Bus (Computer, referring to USB Ports and cables) PCM, FMFrequency Modulation 250 kHzKiloHertz (kHz) 10^3 Hz Worldwide Souz166.JPG
Transit 5B-5 Transit 5B-5, a former TRANSIT navigation satellite, is the oldest satellite known to still transmit a signal. Considered "dead" because its navigational systems failed after 19 days of operation, it still emits a telemetry signal when illuminated. 136.658 MHzMegaHertz (MHz) 10^6 Hz WFMWideband Frequency Modulation PAMPulse Amplitude Modulation/FMFrequency Modulation/PM, PCM/FMFrequency Modulation/PM, PAMPulse Amplitude Modulation/FMFrequency Modulation/PM, PCM/FMFrequency Modulation/PM 32 kHzKiloHertz (kHz) 10^3 Hz Worldwide Transit5B5.PNG
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