| Subject | English | Swedish |
| comp., MS | dual-tone multiple-frequency | Dual Tone Multiple-Frequency (The signaling system used in telephones with touchtone keypads, in which each digit is associated with two specific frequencies) |
| el. | frequency division multiple access | frekvensdelning |
| sat.comm. | frequency division multiple access | frevensdelad multipelåtkomst |
| el. | multiple frequency | multifrekvens- |
| commun. | multiple frequency environment,to distribute in a- | distribuera i multipelfrekvensmiljö |