Amateur radio Abbreviations and Acronyms
- ROCReceiver Operating Characteristic
- ROFLReally Old Farts Linger
- RPTRepeater
- RPTRRepeater
- RRRARiver Raisin Repeater Association
- RSRadio Shack
- RS-422Recommended Standard 422 (ANSI/EIA standard for transmitting serial data)
- RSCRandom Signals and Communications
- RSCPReceived Signal Code Power
- RSGBRadio Society of Great Britain
- RSLRestricted Service License
- RSPPRadio Spectrum Policy Programme
- RSQReadability, Strength, Quality
- RSSIReceived Signal Strength Indicator
- RSTReadability, Strength, and Tone
- RTARadially Tapered Antenna
- RTCARadio Technical Commission for Aeronautics
- RTCIRemote Transmitter Control Interface
- RTSRadio Test Set
- RTTRadio Teletype
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