Altitude FM - 90.9 FM
| Genres: | News,Variety |
| Language: | Portuguese |
| Location: | Guarda, Guarda Portugal |
| Website: | http://www.altitude.fm/ |
| Short URL of Page: | http://rdo.fm/r/kcfp6 |
| CallSign: | ~ |
| Frequency: | 90.9 FM |
| Type: | Internet, FM |
| Description: | Radio Altitude began regular broadcasts on July 29, 1948 in the city of Guarda and is the oldest local radio station |