radiotelephony
Voices through airwaves
Radiotelephony is voice communication transmitted by radio waves rather than wires—the technology behind ship-to-shore calls, air traffic control, and early mobile phones.
The term distinguishes spoken transmission from radiotelegraphy, which sends coded signals like Morse code.
The pilot used radiotelephony to request landing clearance.
Rate of recurrence
- modulationVarying signals to transmit
- amplitudeMaximum oscillation displacement
- bandwidthData transmission capacity
- carrierOne that transports
waveform · squelch · interference · reception · antenna · transceiver · distortion · harmonic
One who steers aircraft
- cockpitPilot's control compartment
- airspaceRegulated overhead flight zone
- transponderSignal-activated transmitter
- squawkHarsh grating bird cry
mayday · pan-pan · clearance · readback · roger · callsign · approach · departure
Transmitted media signal
- transmitterSignal-emitting device
- receiverOne who accepts transmission
- microphoneAudio input device
- speakerOne who talks
PTT · push-to-talk · duplex · simplex · relay · repeater · uplink · downlink
Two-letter chemical abbreviation
- VHFMid-range radio spectrum
- UHF300 MHz to 3 GHz
- shortwaveHigh-frequency radio band
- channelPassage for transmission
band · hertz · kilohertz · megahertz · wavelength · allocation · licensing · amateur
Between boat and land
- distressSevere anxiety or suffering
- vesselReceptacle for contents
- bridgeStructure spanning an obstacle
- harbormasterOfficial managing dock operations
frequency
Rate of recurrence
- modulationVarying signals to transmit
- amplitudeMaximum oscillation displacement
- bandwidthData transmission capacity
carrier · waveform · squelch · interference · reception · antenna · transceiver · distortion · harmonic · sideband
pilot
One who steers aircraft
- cockpitPilot's control compartment
- airspaceRegulated overhead flight zone
- transponderSignal-activated transmitter
squawk · mayday · pan-pan · clearance · readback · roger · callsign · approach · departure · taxi
broadcast
Transmitted media signal
- transmitterSignal-emitting device
- receiverOne who accepts transmission
- microphoneAudio input device
speaker · PTT · push-to-talk · duplex · simplex · relay · repeater · uplink · downlink · handset
HF
Two-letter chemical abbreviation
channel · band · hertz · kilohertz · megahertz · wavelength · allocation · licensing · amateur · marine
ship-to-shore
Between boat and land
radiotelephonyradiotelegraphy
Coded transmission via radio waves
text messaging · telegraphy · written correspondence · Morse code · email