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
Automatic Picture Transmission (APT) Automatic Picture Transmission (APT), also known as NOAA-GEOSAT, is an analog image transmission mode used to by the NOAA weather satellites and some Russian weather satellites to transmit satellite weather photos. 137 MHzMegaHertz (MHz) 10^6 Hz — 138 MHzMegaHertz (MHz) 10^6 Hz NFMNarrowband Frequency Modulation AMAmplitude Modulation 34 kHzKiloHertz (kHz) 10^3 Hz Worldwide APT NOAA.jpg
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) Worldwide Delfi-C3.jpg
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 kHzKiloHertz (kHz) 10^3 Hz Worldwide FUNcube.jpg
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 Waterfall.jpg
High Resolution Picture Transmission (HRPT) High Resolution Picture Transmission (HRPT) signals transmit the same data as Automatic Picture Transmission (APT), but digitally and at a higher rate. The modulation is PSKPhase-Shift Keying and the data rate is 665 kilobaud. HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). RAW PSKPhase-Shift Keying 4.5 MHzMegaHertz (MHz) 10^6 Hz NoWaterfallFiller.png
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) is Inmarsat's satellite paging system. The main use of this technology nowadays is 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
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
METOP-A METOP-A Satellite DCP control signal 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
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 NoWaterfallFiller.png
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 DSB.jpg
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
XM 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 North America XM sattelite radio.jpg