SSB — Single Sideband. HF voice.
The standard voice mode on HF. Upper sideband above 10 MHz, lower sideband below, by long-standing convention.
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Related words
- CTCSS / PL tone — A sub-audible tone that opens a repeater.
- Band — A range of frequencies set aside for a purpose.
- Solar flux — A number that tracks solar activity.
- FT8 — A weak-signal digital mode.
- Offset — The gap between transmit and receive frequency.
- APRS — Automatic Packet Reporting System.
- RTTY — Radio Teletype.
- Sporadic E — Sudden short-lived openings.