Physics A-Level
Ionosphere and signal variability
What Ionosphere and signal variability means in Physics A-Level, as defined for AQA.
Definition of Ionosphere and signal variability
Check what you remember
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Reference: AQA
The ionosphere's varying ionisation means sky-wave reception changes with frequency, time of day and solar activity.
Topics that use Ionosphere and signal variability
- Transmission media (A-level only) (AQA A-Level)
Related terms
- Comparison of transmission media
- De-sensing
- Diffraction
- Geostationary satellites
- Metal wire
- Microwave transmission
- Optic fibre
- Refraction
Using Ionosphere and signal variability in the exam
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