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

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(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
4G LTE Network Long Term Evolution Network. Also known as 4G LTE Data and Evolved Universal Terrestrial Radio Access (E-UTRA). Data service for wireless consumer devices. 700 MHzMegaHertz (MHz) 10^6 Hz — 2,200 MHzMegaHertz (MHz) 10^6 Hz RAW OFDMOrthogonal Frequency-Division Multiplexing, PSKPhase-Shift Keying, QAMQuadrature Amplitude Modulation MHzMegaHertz (MHz) 10^6 Hz — 20 MHzMegaHertz (MHz) 10^6 Hz Worldwide LTE Thumb.jpg
ASCII ASCII (also known as ITA5 or IRA) is an amateur radio telegraphy signal using the ITA-5 alphabet. MHzMegaHertz (MHz) 10^6 Hz — 450 MHzMegaHertz (MHz) 10^6 Hz NFMNarrowband Frequency Modulation, USBUpper Side Band Modulation (Radio, referring to reception and modulation mode)Universal Serial Bus (Computer, referring to USB Ports and cables) FSKFrequency-Shift Keying 300 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). Worldwide ASCII.jpg
ATSC Broadcast Advanced Television Systems Committee Television. 8VSB Modulation 54 MHzMegaHertz (MHz) 10^6 Hz — 700 MHzMegaHertz (MHz) 10^6 Hz RAW 8VSB MHzMegaHertz (MHz) 10^6 Hz North America ATSCthmb.jpg
Amplitude Modulation (AM) Long range commercial broadcast and international radio. Also used for aviation communications. 153 kHzKiloHertz (kHz) 10^3 Hz — 137 MHzMegaHertz (MHz) 10^6 Hz AMAmplitude Modulation AMAmplitude Modulation 10 kHzKiloHertz (kHz) 10^3 Hz Worldwide AM radio.jpg
Amplitude Modulation Signalling System (AMSS) Amplitude Modulation Signalling System (AMSS) is a DRM-based radiotext and data technology for AMAmplitude Modulation broadcasting, like RDS that is used for FMFrequency Modulation. It transmits as a subcarrier, phase-modulating the carrier frequency. 100 kHzKiloHertz (kHz) 10^3 Hz — 30 MHzMegaHertz (MHz) 10^6 Hz SSB AMAmplitude Modulation (PSKPhase-Shift Keying) 200 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). AMSS.jpg
Autocab This is an example of the Autocab Media Data Terminals used by cab companies all over the world. 163.375 MHzMegaHertz (MHz) 10^6 Hz NFMNarrowband Frequency Modulation PSKPhase-Shift Keying 12.5 kHzKiloHertz (kHz) 10^3 Hz UK Autocab.jpg
CCIR 493-4 Selcall CCIRComité Consultatif International pour la Radio (Predecessor of the ITU-R) 493-4 Selcall, also known as HFHigh Frequency (3-30 MHz) Selcall, Australian Selcall, and Codan 8580 Selcall, is a Selcall standard developed in Australia for the HFHigh Frequency (3-30 MHz) band. Used by Amateur radio and Codan Modems. MHzMegaHertz (MHz) 10^6 Hz — 30 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) FSKFrequency-Shift Keying 300 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). Worldwide Ccir 493.jpg
CDMA2000 (3G physical layer) CDMACode Division Multiple Access is another standard for Cellular Devices with GSM being the first standard. 850 MHzMegaHertz (MHz) 10^6 Hz — 1,900 MHzMegaHertz (MHz) 10^6 Hz RAW QPSKQuadrature Phase-Shift Keying (2 bits per symbol) 1.23 MHzMegaHertz (MHz) 10^6 Hz Asia CDMA.jpg
Digital Audio Broadcasting (DAB) A type of digital broadcast radio signal, containing multiple digital radio stations in the signal. 174.928 MHzMegaHertz (MHz) 10^6 Hz — 1,490.625 MHzMegaHertz (MHz) 10^6 Hz RAW OFDMOrthogonal Frequency-Division Multiplexing 1.537 MHzMegaHertz (MHz) 10^6 Hz Worldwide No Audio File DABthmb.jpg
Digital Audio Broadcasting + (DAB+) DAB+ is a type of digital broadcast radio signal, containing multiple digital radio stations in one multiplex. HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). OFDMOrthogonal Frequency-Division Multiplexing 1.536 MHzMegaHertz (MHz) 10^6 Hz Worldwide Iq dab f center 208.064MHz f sample 2MHz.png
Digital Dispatch Systems MDT Digital Dispatch Systems Mobile Data Terminal is a dispatching system used by taxi and private transportation companies. 152 MHzMegaHertz (MHz) 10^6 Hz — 854.788 MHzMegaHertz (MHz) 10^6 Hz NFMNarrowband Frequency Modulation PSKPhase-Shift Keying kHzKiloHertz (kHz) 10^3 Hz United States MDT data terminals.jpg
Digital Enhanced Cordless Telecommunications (DECT) DECT is a ETSIEuropean Telecommunications Standards Institute. An independent, not-for-profit, standardization organization in the telecommunications industry in Europe, developing global telecommunications standards. standard for short range communications, mainly cordless phones. It uses a 10 channel/24 slots in a TDMATime Division Multiple Access FDD structure. Audio sample is 100 times slower than real for listening purposes. 1,880 MHzMegaHertz (MHz) 10^6 Hz — 1,900 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) GFSKGaussian Frequency-Shift Keying 1.6 MHzMegaHertz (MHz) 10^6 Hz Worldwide DECT waterfall.jpg
Digital Multimedia Broadcasting (DMB) Digital Multimedia Broadcasting (DMB) is a digital radio transmission technology developed in South Korea as part of the national IT project for sending multimedia such as TV, radio and datacasting to mobile devices such as mobile phones, laptops and GPS navigation systems. 174 MHzMegaHertz (MHz) 10^6 Hz — 216 MHzMegaHertz (MHz) 10^6 Hz DQPSKDifferential Quadrature Phase-Shift Keying-OFDMOrthogonal Frequency-Division Multiplexing 1.536 MHzMegaHertz (MHz) 10^6 Hz South Korea DMB-TDMB-Waterfall-01.jpg
Digital Radio Mondiale (DRM) Digital Radio Mondiale (DRM) is a digital commercial broadcasting mode used to deliver FMFrequency Modulation-comparable sound quality to shortwave radio. 909 kHzKiloHertz (kHz) 10^3 Hz — 26.06 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) QAMQuadrature Amplitude Modulation, OFDMOrthogonal Frequency-Division Multiplexing 4.5 kHzKiloHertz (kHz) 10^3 Hz — 20 kHzKiloHertz (kHz) 10^3 Hz Worldwide DRMimage.png
Digital Video Broadcasting — Terrestrial (DVB-T) Digital Video Broadcasting — Terrestrial (DVB-T) is a digital broadcast television format used in Europe and in many other countries in the world. 474 MHzMegaHertz (MHz) 10^6 Hz — 786 MHzMegaHertz (MHz) 10^6 Hz RAW QAMQuadrature Amplitude Modulation, OFDMOrthogonal Frequency-Division Multiplexing MHzMegaHertz (MHz) 10^6 Hz — 8 MHzMegaHertz (MHz) 10^6 Hz Worldwide DVB-T.PNG
European Radio Message System (ERMES) European Radio Message System (ERMES) is a European common standard for paging developed by the European Telecommunications Standards Institute (ESTI) 169.413 MHzMegaHertz (MHz) 10^6 Hz — 169.833 MHzMegaHertz (MHz) 10^6 Hz NFMNarrowband Frequency Modulation PAMPulse Amplitude Modulation 25 kHzKiloHertz (kHz) 10^3 Hz Europe ERMES.jpg
FLEX FLEX (Flexible Wide Area Paging Protocol) is Motorola's high speed one-way paging protocol that supports 1600, 3200, and 6400 bpsBits per second (bps). FLEX can transmit tone, numeric, alphanumeric, and binary data. 169 MHzMegaHertz (MHz) 10^6 Hz — 929 MHzMegaHertz (MHz) 10^6 Hz NFMNarrowband Frequency Modulation FSKFrequency-Shift Keying, 4FSK4-Level Frequency Shift Keying kHzKiloHertz (kHz) 10^3 Hz Worldwide FLEX.jpg
FM Broadcast Radio Commercial Broadcast FMFrequency Modulation radio stations. Used for the broadcast of many different radio programs, including music, news, sports, weather, and talk shows. 65 MHzMegaHertz (MHz) 10^6 Hz — 108 MHzMegaHertz (MHz) 10^6 Hz WFMWideband Frequency Modulation FMFrequency Modulation 38 kHzKiloHertz (kHz) 10^3 Hz — 200 kHzKiloHertz (kHz) 10^3 Hz Worldwide Broadcast FM.jpg
Gandalf MDT Gandalf MDTMobile Data Terminal, A mobile data terminal (MDT) is a computerized device used in public transit vehicles, taxicabs, commercial trucking fleets, military logistics, and emergency vehicles, such as police cars, to communicate with a central dispatch office. was developed by Canadian company Gandalf Technologies. Used primarily by taxi and courier services in Canada and the United States. This protocol was used in Gandalf's Cabmate systems. 150 MHzMegaHertz (MHz) 10^6 Hz — 450 MHzMegaHertz (MHz) 10^6 Hz NFMNarrowband Frequency Modulation 4FSK4-Level Frequency Shift Keying 10 kHzKiloHertz (kHz) 10^3 Hz Worldwide Gandalf.png
Global System for Mobile Communications (GSM) GSM is a 2G digital cellular network standard developed by ETSIEuropean Telecommunications Standards Institute. An independent, not-for-profit, standardization organization in the telecommunications industry in Europe, developing global telecommunications standards.. As of 2014 it has become the default global standard for mobile communications. 450 MHzMegaHertz (MHz) 10^6 Hz — 1,800 MHzMegaHertz (MHz) 10^6 Hz RAW GMSKGaussian Minimum-Shift Keying 200 kHzKiloHertz (kHz) 10^3 Hz Worldwide GSMthmb.jpg
Globe Wireless HF Network Globe Wireless' Maritime Digital Radio was a system of 24 stations around the globe offering data services to large cargo vessels. Since 2014, GW has discontinued their HFHigh Frequency (3-30 MHz) network. MHzMegaHertz (MHz) 10^6 Hz — 30 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, FSKFrequency-Shift Keying, OFDMOrthogonal Frequency-Division Multiplexing 400 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). — 2 kHzKiloHertz (kHz) 10^3 Hz Worldwide GW.jpg
Golay Paging (GSC) Golay Paging (or Golay Sequential Code, GSC) is a one-way 2-FSKFrequency-Shift Keying paging format developed by Motorola. It is capable of transmitting tone, numeric, alphanumeric, and voice pages. 33 MHzMegaHertz (MHz) 10^6 Hz — 932 MHzMegaHertz (MHz) 10^6 Hz NFMNarrowband Frequency Modulation FSKFrequency-Shift Keying 2.6 kHzKiloHertz (kHz) 10^3 Hz Worldwide Golay.jpg
HD Radio (AM) HD Radio is a proprietary digital broadcast radio format transmitted in North America, usually as sidebands on analog carriers. This is the AMAmplitude Modulation band implementation of HD Radio. 535 kHzKiloHertz (kHz) 10^3 Hz — 1.7 MHzMegaHertz (MHz) 10^6 Hz RAW OFDMOrthogonal Frequency-Division Multiplexing 30 kHzKiloHertz (kHz) 10^3 Hz North America Hd radio am.jpg
HD Radio (FM) HD Radio is a proprietary digital broadcast radio format transmitted in North America, usually as sidebands on analog carriers. This is the FMFrequency Modulation band implementation of HD Radio. 87.7 MHzMegaHertz (MHz) 10^6 Hz — 107.9 MHzMegaHertz (MHz) 10^6 Hz RAW OFDMOrthogonal Frequency-Division Multiplexing 400 kHzKiloHertz (kHz) 10^3 Hz North America HD Radio fm broadcast.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-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
Integrated Services Digital Broadcasting—Terrestrial (ISDB-T) ISDB-T (Integrated Services Digital Broadcasting – Terrestrial) is a new type of digital broadcasting system for providing audio, video and multimedia services. ISDB-T system was standardized at the Association of Radio Industries and Businesses (ARIB) in Japan. ISDB-T uses a modulation method referred to as Band Segmented Transmission (BST) OFDMOrthogonal Frequency-Division Multiplexing. 470 MHzMegaHertz (MHz) 10^6 Hz — 770 MHzMegaHertz (MHz) 10^6 Hz RAW QPSKQuadrature Phase-Shift Keying (2 bits per symbol), 64-QAMQuadrature Amplitude Modulation MHzMegaHertz (MHz) 10^6 Hz Worldwide NoWaterfallFiller.png
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
LTE Uplink Acquired via telecommunications carrier hardware during interference investigation of an Australian cellular network. 700 MHzMegaHertz (MHz) 10^6 Hz — 2,600 MHzMegaHertz (MHz) 10^6 Hz SC-FDMAFrequency Division Multiple Access QPSKQuadrature Phase-Shift Keying (2 bits per symbol) MHzMegaHertz (MHz) 10^6 Hz Worldwide LTE Uplink.PNG
Logic Trunked Radio (LTR) Logic Trunked Radio NFMNarrowband Frequency Modulation NoWaterfallFiller.png
MMP-4800 MMP-4800 was a MDTMobile Data Terminal, A mobile data terminal (MDT) is a computerized device used in public transit vehicles, taxicabs, commercial trucking fleets, military logistics, and emergency vehicles, such as police cars, to communicate with a central dispatch office. (Mobile Data Terminal) protocol developed by Canadian company Mobile Data International (MDI) in 1982 for their Mobile Data Terminals. Used by public safety and commercial industries. Phased out. 150 MHzMegaHertz (MHz) 10^6 Hz — 900 MHzMegaHertz (MHz) 10^6 Hz NFMNarrowband Frequency Modulation 12.5 kHzKiloHertz (kHz) 10^3 Hz — 25 kHzKiloHertz (kHz) 10^3 Hz Worldwide Mpp4800 waveform.PNG
MOBITEX MOBITEX is an OSI based open standard, national public access wireless packet-switched data network. 400 MHzMegaHertz (MHz) 10^6 Hz — 900 MHzMegaHertz (MHz) 10^6 Hz NFMNarrowband Frequency Modulation GMSKGaussian Minimum-Shift Keying, FFSKFast Frequency-Shift Keying 15 kHzKiloHertz (kHz) 10^3 Hz Worldwide MOBITEX 8000.jpg
Multitone Paging Multitone Paging signal, developed by Multitone Electronics in the UK. Uses similar coding to POCSAG but the headers are different and only work with Multitone's range of paging products 25 MHzMegaHertz (MHz) 10^6 Hz — 470 MHzMegaHertz (MHz) 10^6 Hz NFMNarrowband Frequency Modulation FFSKFast Frequency-Shift Keying 12.5 kHzKiloHertz (kHz) 10^3 Hz — 25 kHzKiloHertz (kHz) 10^3 Hz Worldwide Multitone Pager.jpg
NTSC Broadcast National Television System Committee (NTSC) Television broadcast is an analogue television broadcast mode. Currently being phased out in parts of the world in favor of digital broadcast. 54 MHzMegaHertz (MHz) 10^6 Hz — 806 MHzMegaHertz (MHz) 10^6 Hz RAW QAMQuadrature Amplitude Modulation, VSBVestigial Sideband Modulation MHzMegaHertz (MHz) 10^6 Hz Worldwide No Audio File NTSCthumb.jpg
Nordic Mobile Telephone (NMT) Nordic Mobile Telephone (NMT, NMT-450, and NMT-900) is a first generation analog cell phone system. Originally designed for and by Nordic countries (Finland, Sweden, Norway, Denmark) it was widely deployed around the world. Nowadays (as of 2015) NMT is defunct. 450 MHzMegaHertz (MHz) 10^6 Hz NFMNarrowband Frequency Modulation FSKFrequency-Shift Keying 25 kHzKiloHertz (kHz) 10^3 Hz Worldwide NMT.jpg
PACTOR I PACTOR-I is a digital data protocol combining elements of PACKET and AMTOR ARQAutomatic Repeat reQuestAutomatic Repeat Query. MHzMegaHertz (MHz) 10^6 Hz — 30 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) FSKFrequency-Shift Keying 300 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). Worldwide PACTOR Addimg.jpg
PACTOR II PACTOR II is an advancement of PACTOR I. It is up to 8 times faster than PACTOR I. MHzMegaHertz (MHz) 10^6 Hz — 30 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 450 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). Worldwide PACTOR IIstd.jpg
PACTOR III PACTOR III introduces 6 speed levels that provide higher throughput and improved robustness compared to PACTOR I and II. PACTOR III is on average 3.5 times faster than PACTOR II. With optimal conditions, PACTOR III becomes over 5 times faster. MHzMegaHertz (MHz) 10^6 Hz — 30 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 400 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). — 2.4 kHzKiloHertz (kHz) 10^3 Hz Worldwide PACTORIIIthumb.jpg
PACTOR IV PACTOR IV is the newest iteration of the PACTOR series, advancing from PACTOR I-III. It is 1.5x-3x faster than PACTOR III, and has 10 speed levels. MHzMegaHertz (MHz) 10^6 Hz — 30 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, QAMQuadrature Amplitude Modulation 300 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). — 2.4 kHzKiloHertz (kHz) 10^3 Hz Worldwide PACTOR IV.jpg
PAL Broadcast Phase Alternating Line (PAL) Analogue Television Broadcast. Now phased out in most of the world. 47 MHzMegaHertz (MHz) 10^6 Hz — 862 MHzMegaHertz (MHz) 10^6 Hz RAW QAMQuadrature Amplitude Modulation, VSBVestigial Sideband Modulation, FMFrequency Modulation MHzMegaHertz (MHz) 10^6 Hz — 8 MHzMegaHertz (MHz) 10^6 Hz Worldwide PAL.jpg
POCSAG POCSAG (Post Office Code Standardisation Advisory Group), also known as Super-POCSAG, Radio Paging Code No. 1 or RPC1, is a one-way 2FSK paging protocol that supports 512, 1200, and 2400 bpsBits per second (bps). 25 MHzMegaHertz (MHz) 10^6 Hz — 932 MHzMegaHertz (MHz) 10^6 Hz NFMNarrowband Frequency Modulation FSKFrequency-Shift Keying kHzKiloHertz (kHz) 10^3 Hz Worldwide POCSAG Waterfallthmb.png
Primex Wireless Time Sync Primex Wireless Time Sync is a VHFVery High Frequency (30-300 MHz) Time Synchronization signal used in Primex Wireless's XR Series. 72.02 MHzMegaHertz (MHz) 10^6 Hz — 72.98 MHzMegaHertz (MHz) 10^6 Hz NFMNarrowband Frequency Modulation PSKPhase-Shift Keying 20 kHzKiloHertz (kHz) 10^3 Hz Worldwide A112.jpg
Radio Data System (RDS) Radio Data System (RDS) and it's North American variant, Radio Broadcast Data System (RBDS), are data modes transmitted on subcarriers of commercial FMFrequency Modulation radio station transmissions. 65 MHzMegaHertz (MHz) 10^6 Hz — 108 MHzMegaHertz (MHz) 10^6 Hz DSBDual Side Band Modulation PSKPhase-Shift Keying kHzKiloHertz (kHz) 10^3 Hz Worldwide RBDS.png
ReFLEX ReFLEX is a two-way paging variant of FLEX. 896 MHzMegaHertz (MHz) 10^6 Hz — 941 MHzMegaHertz (MHz) 10^6 Hz NFMNarrowband Frequency Modulation FFSKFast Frequency-Shift Keying 40 kHzKiloHertz (kHz) 10^3 Hz United States ReFLEX.jpg
SIGFOX SIGFOX is a IoT wireless network system utilizing ETSIEuropean Telecommunications Standards Institute. An independent, not-for-profit, standardization organization in the telecommunications industry in Europe, developing global telecommunications standards.'s specification for Low Throughput Networks (LTN) and Ultra Narrow-Band (UNB) modulation. 868 MHzMegaHertz (MHz) 10^6 Hz — 868.6 MHzMegaHertz (MHz) 10^6 Hz RAW BPSKBinary Phase-Shift Keying (1 bit per symbol) 200 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). Worldwide 3 SIGFOX.jpg
STP403 Bus PIT System STP403 is a bus PITPassenger Information Terminals, such as bus timetable displays at bus stops system used to update digital displays at bus stops. STP403 was developed by French companies INEO and CESATEC. 164 MHzMegaHertz (MHz) 10^6 Hz — 468.488 MHzMegaHertz (MHz) 10^6 Hz NFMNarrowband Frequency Modulation FFSKFast Frequency-Shift Keying kHzKiloHertz (kHz) 10^3 Hz France Fouine91 MPT1327-Like.jpg
UK AM Data System (UK-AMDS) UK AMAmplitude Modulation Data System (UK-AMDS) was developed by BBC Research and Development in 1984 as a way to transmit low bitrate data on BBC Radio 4's LFLow Frequency (30-300 kHz) AMAmplitude Modulation carrier. Elements of this system were adopted into ETSIEuropean Telecommunications Standards Institute. An independent, not-for-profit, standardization organization in the telecommunications industry in Europe, developing global telecommunications standards.'s AMSS. 198 kHzKiloHertz (kHz) 10^3 Hz SSB AMAmplitude Modulation (PSKPhase-Shift Keying) 85 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). United Kingdom BBC teleswitch 2.png
Vehicle Counting System Data transmitted from a vehicle counting system installed in car parks. The data is frequency hopping over 10 MHzMegaHertz (MHz) 10^6 Hz. 915 MHzMegaHertz (MHz) 10^6 Hz — 925 MHzMegaHertz (MHz) 10^6 Hz RAW FSKFrequency-Shift Keying 10 MHzMegaHertz (MHz) 10^6 Hz Australia Flinders Uni Vehicle Counting System Waterfall.PNG
Wireless Temperature Sensor The freezer temperature is requested by a master at regular intervals, and the slave attached to a freezer responds. The communication format appears to be a variant of chirp spread spectrum, (although the spectrum it consumes is quite narrow at ~150 kHzKiloHertz (kHz) 10^3 Hz). 434 MHzMegaHertz (MHz) 10^6 Hz Chirp Spread Spectrum 150 kHzKiloHertz (kHz) 10^3 Hz Australia Waterfall spectrum of Flinders Uni freezer communication.PNG
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