skywave
Refracted radio transmission
A skywave is a radio wave that travels upward and is reflected back to Earth by the ionosphere, allowing long-distance transmission beyond the horizon.
This phenomenon explains why AM radio stations can be heard hundreds or thousands of miles away at night, when ionospheric conditions favor reflection.
Skywave propagation contrasts with ground wave transmission, which follows the Earth's surface.
Act of spreading widely
- reflectionReturned light or thought
- refractionWave bending between media
- ionizationCharge acquisition process
- solar cycleRecurring pattern of stellar activity
sunspots · magnetosphere · layers · HF · radio waves · absorption · geomagnetic · aurora
Dual-function communication device
- antennaBroadcast signal receiver
- HFTwo-letter chemical abbreviation
- CWSensitive content alert
- Morse codeDot-dash signaling system
rig · logbook · contest · band · ham · hobbyist · frequency · net
To deliberately exclude
- fadingGradual loss of intensity
- multipathSignals arriving via multiple routes
- reflectionReturned light or thought
- refractionWave bending between media
line-of-sight · attenuation · interference · polarization · absorption · ducting · scatter · dead zone
Transmitted media signal
- internationalConcerning relations among countries
- BBC World ServiceUK international radio broadcaster
- VOAU.S. international broadcaster
- listenerOne who attends aurally
receiver · schedule · frequency · megahertz · kilohertz · programming · time signal
propagation
Act of spreading widely
- reflectionReturned light or thought
- refractionWave bending between media
- ionizationCharge acquisition process
solar cycle · sunspots · magnetosphere · layers · HF · radio waves · absorption · geomagnetic · aurora
transceiver
Dual-function communication device
Morse code · rig · logbook · contest · band · ham · hobbyist · frequency · net · pileup
skip
To deliberately exclude
- fadingGradual loss of intensity
- multipathSignals arriving via multiple routes
- reflectionReturned light or thought
refraction · line-of-sight · attenuation · interference · polarization · absorption · ducting · scatter · dead zone · hop
broadcast
Transmitted media signal
- internationalConcerning relations among countries
- BBC World ServiceUK international radio broadcaster
- VOAU.S. international broadcaster
listener · receiver · schedule · frequency · megahertz · kilohertz · programming · time signal