| Abbreviation | Definition |
|---|---|
| RTPA | Radio Television del Principau d'Asturies |
| RUSC | R U Sitting Comfortably |
| SAFM | South Australia's Favourite Music |
| SERS | Special Emergency Radio Service |
| TGY | AM-580, Guatemala City, Guatemala |
| TMRN | The Mader Radio Network |
| TRT | Türkiye Radyo Televizyon |
| TRUST | The Radio Usually Sells Time |
| TTDY | Those Thrilling Days of Yesteryear |
| URPK | MATERN, German ship radio call sign |
| URR | Underground Railroad Radio |
| UTFM | Utah Free Media (Internet-only radio station) |
| VDL | Voix Du Liban (Voice of Lebanon) |
| VIC | WVIC, AM-730, Lansing, Michigan |
| VIRCC | Vermont Independent Repeater Coordinating Committe |
| VNG | Australia Standard time and frequency radio station |
| VOAR | Voice Of Africa Radio |
| VOB | Voice Of Barbados Radio |
| W201AX | LPFM-88.1, Fremont, Ohio |
| W202AR | LPFM-88.3, Newburgh, New York (WLJP translator) |