transponder
Automatic signal relay
A transponder is a device that receives a radio signal and automatically transmits a response.
Aircraft transponders broadcast identification and altitude data to air traffic control.
Satellites use transponders to relay communications.
The word combines transmitter and responder.
In everyday use, transponders appear in toll road tags, keyless car entry systems, and pet microchips that store identification when scanned.
Harsh grating bird cry
- ATCAviation traffic service
- air traffic controlManaging aircraft separation and movement
- cockpitPilot's control compartment
- radarRadio-wave object detection
altitude · airspace · flight · control tower · beacon · aircraft · airliner · pilot
Transmission to spacecraft
- downlinkSpacecraft-to-Earth transmission
- frequencyRate of recurrence
- bandwidthData transmission capacity
- footprintMark from stepping
orbital · geostationary · payload · carrier · relay · earth station · dish · C-band
Small broken-off piece
- circuitClosed electrical pathway
- antennaBroadcast signal receiver
- receiverOne who accepts transmission
- modulatorDevice that varies signals
demodulator · oscillator · microcontroller · PCB · frequency · signal processing · interrogation · RFID
Receptacle for contents
- shipSeagoing transport vessel
- maritimeOf the sea
- portDocking place for ships
- VHFMid-range radio spectrum
radar · collision avoidance · search and rescue · coastal · navigation · Class A · IMO · maritime safety
Satellite-based location technology
- telemetryDistant automated data collection
- wildlifeUndomesticated natural organisms
- taggingAttaching identifying markers
- monitoringOngoing observation of something
satellite · collar · implant · migration · geolocation · ping · locator · microchip
Device preventing movement
- key fobWireless vehicle entry transmitter
- RFIDWireless identification via electromagnetic fields
- chipSmall broken-off piece
- ignitionStarting combustion process
anti-theft · keyless entry · remote start · proximity sensor · authentication · car key · smart key · toll tag
squawk
Harsh grating bird cry
- ATCAviation traffic service
- air traffic controlManaging aircraft separation and movement
- cockpitPilot's control compartment
radar · altitude · airspace · flight · control tower · beacon · aircraft · airliner · pilot · flight plan
uplink
Transmission to spacecraft
- downlinkSpacecraft-to-Earth transmission
- frequencyRate of recurrence
- bandwidthData transmission capacity
footprint · orbital · geostationary · payload · carrier · relay · earth station · dish · C-band · repeater
chip
Small broken-off piece
- circuitClosed electrical pathway
- antennaBroadcast signal receiver
- receiverOne who accepts transmission
modulator · demodulator · oscillator · microcontroller · PCB · frequency · signal processing · interrogation · RFID · active
vessel
Receptacle for contents
VHF · radar · collision avoidance · search and rescue · coastal · navigation · Class A · IMO · maritime safety
GPS
Satellite-based location technology
- telemetryDistant automated data collection
- wildlifeUndomesticated natural organisms
- taggingAttaching identifying markers
monitoring · satellite · collar · implant · migration · geolocation · ping · locator · microchip · real-time tracking
immobilizer
Device preventing movement
- key fobWireless vehicle entry transmitter
- RFIDWireless identification via electromagnetic fields
- chipSmall broken-off piece
ignition · anti-theft · keyless entry · remote start · proximity sensor · authentication · car key · smart key · toll tag · E-ZPass
- aerospaceairplane, helicopter, rocket, rockets, spacecraft
- aviationaircraft, airports, flying, flight, airplane
- aviation termsradar, tower, runway, landing strip, flight plan
- motorsportsracing, race, race tracks, Daytona 500, racing teams
- telecommunicationscell phone, cellphone, signals, cellular network, telephone calls
- Global Communicationsatellite, telegraph, telephone, radio waves, internet
transponderradar reflector
Device returning radio signals
barcode · receiver · retroreflector · detector · sensor
transpondertransmitter
Signal-emitting device
receiver · beacon · radio receiver · antenna · broadcast antenna
- transponder keyCoded key for vehicles