- the highest of the radio-reflective layers of the ionosphere, beginning at an altitude of about 80 miles (130 km) and consisting of two parts, the lower part (F1 layer ) being detectable in the daytime only, the higher (F2 layer, or Appleton layer ) being constant and constituting the ionospheric layer most favorable for long-range radio communication.
More Definitions
- TIN PANTS (noun) Definition, Meaning & Examples
- CONSPICUOUS BY ITS ABSENCE (noun) Definition, Meaning & Examples
- POTOMETER (noun) Definition, Meaning & Examples
- ACQUAINTANCE VIOLENCE (noun) Definition, Meaning & Examples
- REVERENTLY (noun) Definition, Meaning & Examples
- HYPERTHYROIDISM (noun) Definition, Meaning & Examples