| Abbreviation | Definition |
|---|---|
| PPM | Personal People Meter |
| PRNW | Progressive Radio NorthWest |
| PRPD | Public Radio Program Directors |
| QoS | Quality of Signal |
| QWK | WQWK, FM-97.1, State College, Pennsylvania |
| RAC | Radio Amateurs of Canada |
| RBR | Rock Bandom Radio |
| RCWS | Remote Controlled Weapon Station |
| REACT | Radio Emergency Associated Communication Teams |
| RERH | Real Estate Radio Houston |
| RFDI | Radio Fouta Djaloo Internationale |
| RFH | Radio Free Hamptons |
| RJR | Radio Jamaica Redifusion |
| RMIN | Radio Mare Imperiale News |
| ROQ | KROQ-FM, FM-106.7, Coachella, California |
| RRIA | Radio Rhino International-Africa |
| RSAB | Radio St Austell Bay |
| RSG | Radio Sonder Grense (South African Radio Station network) |
| RSPM | Radio Suara Persaudaraan Matraman |
| RSTU | Remote Switching Talkback Unit |