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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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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
1G Advanced Mobile Phone System (AMPS) The first generation of cellular mobile telecommunications, which used analogue NFMNarrowband Frequency Modulation voice. 824 MHzMegaHertz (MHz) 10^6 Hz — 894 MHzMegaHertz (MHz) 10^6 Hz NFMNarrowband Frequency Modulation FMFrequency Modulation, FSKFrequency-Shift Keying 10 kHzKiloHertz (kHz) 10^3 Hz — 30 kHzKiloHertz (kHz) 10^3 Hz Worldwide AmpsCC.png
2G CDMA (IS-95) CDMACode Division Multiple Access-One also known as IS-95, was the first ever cellular standard technology based off of CDMACode Division Multiple Access. It is now defunct due to GSM and later classes of cellular techs replacing it. It is a predecessor of the 1xRTT (CDMA2000/IS-2000) standard, which is backwards compatible. 815 MHzMegaHertz (MHz) 10^6 Hz — 1,995 MHzMegaHertz (MHz) 10^6 Hz RAW QPSKQuadrature Phase-Shift Keying (2 bits per symbol) 1.228 MHzMegaHertz (MHz) 10^6 Hz Worldwide 2gcdma.png
3G WCDMA WCDMA, known primarily as 3G mobile, is a family of 3G data protocols used to send voice, text and signaling data to smart phones and other wireless devices. 824 MHzMegaHertz (MHz) 10^6 Hz — 2,100 MHzMegaHertz (MHz) 10^6 Hz RAW, AMAmplitude Modulation QAMQuadrature Amplitude Modulation, QPSKQuadrature Phase-Shift Keying (2 bits per symbol), CDMACode Division Multiple Access 4.2 MHzMegaHertz (MHz) 10^6 Hz 3GWCDMA.png
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. 450 MHzMegaHertz (MHz) 10^6 Hz — 3,500 MHzMegaHertz (MHz) 10^6 Hz RAW OFDMOrthogonal Frequency-Division Multiplexing, PSKPhase-Shift Keying, QAMQuadrature Amplitude Modulation 1.4 MHzMegaHertz (MHz) 10^6 Hz — 20 MHzMegaHertz (MHz) 10^6 Hz Worldwide LTE Thumb.jpg
5G "New Radio" cellular network - Downlink 5G cellular, also known by 3GPP '5G' NR (new radio), etc. is a newly released cellular standard that allows for backwards compatibility with 4G LTE, and will allow for several gigabits of connection speeds, (up to 10-100Gb) per second. This is the 600 MHzMegaHertz (MHz) 10^6 Hz downlink band for the new standard. 600 MHzMegaHertz (MHz) 10^6 Hz — 50,000 MHzMegaHertz (MHz) 10^6 Hz AMAmplitude Modulation UFMC, GFDM, OFDMOrthogonal Frequency-Division Multiplexing, FBMC 100 MHzMegaHertz (MHz) 10^6 Hz Worldwide 5Gdownlink.png
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 3.0 Broadcast Advanced Television Systems Committee standard, version 3.0 RAW OFDMOrthogonal Frequency-Division Multiplexing, QAMQuadrature Amplitude Modulation MHzMegaHertz (MHz) 10^6 Hz United States; South Korea ATSC3.png
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 United States 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 SSBSingle-sideband modulation AMAmplitude Modulation, PSKPhase-Shift Keying 200 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). AMSS.jpg
Aprizesat Data downlink from Aprizesat microsatellites. Aprizesat constellation consists of 12 Active satellites, These provide a worldwide M2M asset tracking service and relay AIS packets. 400.5 MHzMegaHertz (MHz) 10^6 Hz — 400.65 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) GMSKGaussian Minimum-Shift Keying kHzKiloHertz (kHz) 10^3 Hz Worldwide AprizesatWF.png
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 United Kingdom Autocab.jpg
Automatic Vehicle Monitoring (AVM) Proprietary FFSKFast Frequency-Shift Keying data network used for public transport telemetry. 507.225 MHzMegaHertz (MHz) 10^6 Hz — 517.875 MHzMegaHertz (MHz) 10^6 Hz NFMNarrowband Frequency Modulation FFSKFast Frequency-Shift Keying 7.5 kHzKiloHertz (kHz) 10^3 Hz Australia Mpt1327 clone.png
Broadband Global Area Network (BGAN) Proprietary satellite network owned and operated by Inmarsat that provides cellular 3G equivalent data and voice services to subscribers. 1,525 MHzMegaHertz (MHz) 10^6 Hz — 1,559 MHzMegaHertz (MHz) 10^6 Hz WFMWideband Frequency Modulation QPSKQuadrature Phase-Shift Keying (2 bits per symbol) 200 kHzKiloHertz (kHz) 10^3 Hz Worldwide Bgan.png
CBET CBET "Critical Band Encoded Tones" are tones added into radio broadcast's audio output for identification purposes. 520 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). — 108 MHzMegaHertz (MHz) 10^6 Hz FMFrequency Modulation, AMAmplitude Modulation kHzKiloHertz (kHz) 10^3 Hz CBET2.png
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 encrypted standard. 450 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 United States CDMA2.png
CDMA420 410 MHzMegaHertz (MHz) 10^6 Hz — 425 MHzMegaHertz (MHz) 10^6 Hz AMAmplitude Modulation QPSKQuadrature Phase-Shift Keying (2 bits per symbol) 2.5 MHzMegaHertz (MHz) 10^6 Hz Poland CDMA420LTE420.png
China digital radio (CDR) Convergent Digital Radio (CDR) or China Digital Radio is an in-band-on-channel (IBOCIn-Band On-Channel (IBOC) is a hybrid method of transmitting digital radio and analog radio broadcast signals simultaneously on the same frequency.) digital radio broadcasting format used in China. It can be found in multiple bandwidth configurations with different modulation formats. 106.1 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) OFDMOrthogonal Frequency-Division Multiplexing 100 kHzKiloHertz (kHz) 10^3 Hz — 500 kHzKiloHertz (kHz) 10^3 Hz China CroppedCDR.png
Digital Audio Broadcasting (DAB) DAB is an audio broadcasting standard containing a multiplex of digital radio stations in the signal. 174 MHzMegaHertz (MHz) 10^6 Hz — 239 MHzMegaHertz (MHz) 10^6 Hz AMAmplitude Modulation OFDMOrthogonal Frequency-Division Multiplexing 1.535 MHzMegaHertz (MHz) 10^6 Hz Worldwide Dab+.JPG
Digital Audio Broadcasting Plus (DAB+) DAB+ is a medium of delivering broadcast radio, containing multiple stations in a single multiplex. 174 MHzMegaHertz (MHz) 10^6 Hz — 230 MHzMegaHertz (MHz) 10^6 Hz OFDMOrthogonal Frequency-Division Multiplexing 1.536 MHzMegaHertz (MHz) 10^6 Hz Worldwide Dab+.JPG
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. 531 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 Radio Mondiale Plus (DRM+) DRM+ is a VHFVery High Frequency (30-300 MHz) implementation of DRM primarily for the FMFrequency Modulation broadcast band. 47 MHzMegaHertz (MHz) 10^6 Hz — 230 MHzMegaHertz (MHz) 10^6 Hz OFDMOrthogonal Frequency-Division Multiplexing 100 kHzKiloHertz (kHz) 10^3 Hz Worldwide NoWaterfallFiller.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. 174 MHzMegaHertz (MHz) 10^6 Hz — 786 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, QPSKQuadrature Phase-Shift Keying (2 bits per symbol) MHzMegaHertz (MHz) 10^6 Hz — 8 MHzMegaHertz (MHz) 10^6 Hz Worldwide DVB-T image.jpg
Digital-Coded Squelch (DCS) Digital in-band signalling used to squelch and manage transmissions on a given frequency. 433 MHzMegaHertz (MHz) 10^6 Hz — 446 MHzMegaHertz (MHz) 10^6 Hz NFMNarrowband Frequency Modulation FSKFrequency-Shift Keying Worldwide DCS.JPG
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 4FSK4-Level Frequency Shift Keying 25 kHzKiloHertz (kHz) 10^3 Hz Europe ERMES waterfall.jpg
FLASH-OFDM Mobile data access technology developed by Flarion. 450 MHzMegaHertz (MHz) 10^6 Hz WFMWideband Frequency Modulation MC-CDMACode Division Multiple Access MHzMegaHertz (MHz) 10^6 Hz Finland, Slovakia, Germany, USA FLASH-OFDM.png
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. 152.6 MHzMegaHertz (MHz) 10^6 Hz — 931.938 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 Gandalf Mobile Systems, a subsidiary of 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 — 1,900 MHzMegaHertz (MHz) 10^6 Hz RAW, AMAmplitude Modulation, FMFrequency Modulation GMSKGaussian Minimum-Shift Keying 200 kHzKiloHertz (kHz) 10^3 Hz Worldwide Gsm.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
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
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 United States 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 United States HD Radio fm broadcast.jpg
IS-54 D-AMPS D-AMPS, also known as IS-54 and IS-136, is a second generation (2G) mobile phone system standard which develops on analog AMPS, a 1G standard. This system is also colloquially known as TDMATime Division Multiple Access. 824 MHzMegaHertz (MHz) 10^6 Hz — 894 MHzMegaHertz (MHz) 10^6 Hz PSKPhase-Shift Keying 30 kHzKiloHertz (kHz) 10^3 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-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
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), 64QAM 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
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
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 LTEopt.png
LTE-M 412.5 MHzMegaHertz (MHz) 10^6 Hz — 2,690 MHzMegaHertz (MHz) 10^6 Hz AMAmplitude Modulation OFDMA, 16-QAMQuadrature Amplitude Modulation 1.08 MHzMegaHertz (MHz) 10^6 Hz Worldwide LTE-M.png
LoRa LoRa (Long Range) is a proprietary low-power wide-area network modulation technique. 433 MHzMegaHertz (MHz) 10^6 Hz — 915 MHzMegaHertz (MHz) 10^6 Hz FMFrequency Modulation CSS 250 kHzKiloHertz (kHz) 10^3 Hz Worldwide LORA 2.JPG
Logic Trunked Radio (LTR) Logic Trunked Radio, is an analog trunked radio format developed by EF Johnson Company. 150 MHzMegaHertz (MHz) 10^6 Hz — 470 MHzMegaHertz (MHz) 10^6 Hz NFMNarrowband Frequency Modulation FSKFrequency-Shift Keying 12.5 kHzKiloHertz (kHz) 10^3 Hz — 25 kHzKiloHertz (kHz) 10^3 Hz LTR2.png
MDC1200 MDC (Motorola Data Communications), also known as Stat-Alert, MDC-1200 and MDC-600, is a Motorola two-way radio low-speed data system. 30 MHzMegaHertz (MHz) 10^6 Hz — 960 MHzMegaHertz (MHz) 10^6 Hz FMFrequency Modulation AFSKAudio Frequency-Shift Keying 12.5 kHzKiloHertz (kHz) 10^3 Hz — 20 kHzKiloHertz (kHz) 10^3 Hz Worldwide MDC1200 3.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.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
Motorola SECURENET Motorola SECURENET ("analog" encryption) was a secure voice option for conventional and Motorola Type II trunked systems, encoding the voice using 12kbps CVSD and encrypting the bitstream. It is easily identified by the 6 kHzKiloHertz (kHz) 10^3 Hz tone at the end of transmission. As it is not 12.5 kHzKiloHertz (kHz) 10^3 Hz FCC narrowbanding mandate compliant, it does not see much use anymore. 137 MHzMegaHertz (MHz) 10^6 Hz — 941 MHzMegaHertz (MHz) 10^6 Hz FMFrequency Modulation FSKFrequency-Shift Keying 16 kHzKiloHertz (kHz) 10^3 Hz Worldwide Securnet.png
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
NB-IOT Narrowband Internet of Things (NB-IoTInternet of Things) is a Low Power Wide Area Network (LPWAN) radio technology standard developed by 3GPP to enable a wide range of cellular devices and services. 700 MHzMegaHertz (MHz) 10^6 Hz — 1,900 MHzMegaHertz (MHz) 10^6 Hz AMAmplitude Modulation QPSKQuadrature Phase-Shift Keying (2 bits per symbol) 200 kHzKiloHertz (kHz) 10^3 Hz Worldwide NB-IOT.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 NTSCthumb.jpg
Near Field Communication (NFC) 13.56 MHzMegaHertz (MHz) 10^6 Hz ASKAmplitude-Shift Keying 1.7 MHzMegaHertz (MHz) 10^6 Hz Worldwide NFC.png
Near Instantaneous Companded Audio Multiplex (NICAM) NICAM is used to provide digital stereo audio alongside PAL video for television broadcasts. 174 MHzMegaHertz (MHz) 10^6 Hz — 700 MHzMegaHertz (MHz) 10^6 Hz RAW PSKPhase-Shift Keying 400 kHzKiloHertz (kHz) 10^3 Hz Worldwide NoWaterfallFiller.png
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. 453 MHzMegaHertz (MHz) 10^6 Hz — 960 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
Primary Aeronautical Surveillance Radar A Primary radar (PSR Primary Surveillance Radar) is a conventional radar sensor that illuminates a large portion of space with an electromagnetic wave and receives back the reflected waves from targets within that space. 1,215 MHzMegaHertz (MHz) 10^6 Hz — 1,400 MHzMegaHertz (MHz) 10^6 Hz RAW Pulse MHzMegaHertz (MHz) 10^6 Hz Worldwide L-band radar.JPG
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 its 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
S-Band Jammer This is what the signal of a military S-Band (In this case 2.4 GHzGigaHertz (GHz) 10^9 Hz) RADAR and WiFi intentional interference (Jamming) device looks like. This signal is generated by a DDS system and is then used to modulate the output of a 2.45 GHzGigaHertz (GHz) 10^9 Hz magnetron (The same as in a microwave oven). 2,400 MHzMegaHertz (MHz) 10^6 Hz Noise 100 kHzKiloHertz (kHz) 10^3 Hz — 100 MHzMegaHertz (MHz) 10^6 Hz Worldwide RADAR JAMMER HDSDR.jpg
SIGFOX SIGFOX is a IoTInternet of Things 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 kHzKiloHertz (kHz) 10^3 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
Secondary surveillance radar (SSR) Secondary surveillance radar (SSR)is a radar system used in air traffic control. A surveillance radar system which uses transmitters/receivers (interrogators) and transponders. 1,030 MHzMegaHertz (MHz) 10^6 Hz RAW PPMPulse Position Modulation MHzMegaHertz (MHz) 10^6 Hz Worldwide Interrogator.JPG
Sensus Water meter (Acquisition units) These are samples from the Sensus Water meters. They are a FHSS ASKAmplitude-Shift Keying encoded data transmission for purposes of providing municipalities water meter telemetry (for billing how much water you use). 902 MHzMegaHertz (MHz) 10^6 Hz — 927 MHzMegaHertz (MHz) 10^6 Hz ASKAmplitude-Shift Keying, FHSS 175 MHzMegaHertz (MHz) 10^6 Hz Worldwide SWD.png
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
Total Access Communication System (TACS) A first generation analogue mobile cellular system which operated in the United Kingdom and a handful of other countries in Europe. It is also the EU's form of AMPS. 872 MHzMegaHertz (MHz) 10^6 Hz — 960 MHzMegaHertz (MHz) 10^6 Hz NFMNarrowband Frequency Modulation FMFrequency Modulation, FSKFrequency-Shift Keying 25 kHzKiloHertz (kHz) 10^3 Hz Europe NoWaterfallFiller.png
UHF Vehicle Location System LTR Passport is a type of control channel (unlike the standalone LTR that doesnt have one) which consists of multiple radio repeater sites linked together to form a wide-area radio dispatch network. 400 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). — 900 MHzMegaHertz (MHz) 10^6 Hz NFMNarrowband Frequency Modulation PSKPhase-Shift Keying 5.5 kHzKiloHertz (kHz) 10^3 Hz United States Unk data link .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 SSBSingle-sideband modulation 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
WiMAX WiMAX is a family of of wireless broadband communication standards based on the IEEE 802.16 set of standards, which provide physical layer (PHY) and media access control (MAC) options. OFDMOrthogonal Frequency-Division Multiplexing, OFDMA 1.25 MHzMegaHertz (MHz) 10^6 Hz — 20 MHzMegaHertz (MHz) 10^6 Hz Worldwide NoWaterfallFiller.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 WTS.png

Pages in category "Commercial"

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