| Subject | German | English |
| commun., transp., avia. | Modus S | Mode S |
| commun., transp., avia. | Modus S | Mode Select |
| commun., transp., avia. | Modus-S-Abfragesystem | Mode S interrogator |
| commun., transp., avia. | Modus-S-Betreiber | Mode S operator |
| commun., transp., avia. | Modus-S-Rundabfrage | Mode S all call interrogation |
| transp., avia. | Modus-S-Rundrufantwort | Mode S all call reply |
| commun., transp., avia. | Modus-S-Ziel | Mode S target |