SSTV — Slow-Scan Television.
Sending still images over the air, one slow line at a time. The International Space Station transmits it sometimes.
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Related words
- Sporadic E — Sudden short-lived openings.
- Frequency — How fast a radio wave oscillates.
- K index — How disturbed the earth's magnetic field is.
- APRS — Automatic Packet Reporting System.
- FM — Frequency Modulation. VHF and UHF voice.
- RTTY — Radio Teletype.
- Simplex vs duplex — One frequency versus two.
- CW — Continuous Wave. Morse code.