Sporadic E — Sudden short-lived openings.
Patches of intense ionization that make 6 and 10 meters open without warning, mostly in early summer. It is why 6 meters is called the Magic Band.
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Related words
- SSTV — Slow-Scan Television.
- Band — A range of frequencies set aside for a purpose.
- Wavelength — The physical length of one radio wave.
- FM — Frequency Modulation. VHF and UHF voice.
- Propagation — How your signal travels.
- SWR — Standing Wave Ratio.
- Offset — The gap between transmit and receive frequency.
- Frequency — How fast a radio wave oscillates.