| signal light buoy | Signal-Leuchtboje |
| signal line | Signalleitung |
| signal line loss | Signaldämpfung im Kabel |
| signal lines | Signalleitungen |
| signal loss | Signalverlust |
| signal low | Signal-low-Pegel |
| signal low level | Signal-Tiefpegel |
| signal maintainer | Signalunterhaltungsarbeiter |
| signal maintainers | Signalunterhaltungsarbeiter |
| signal mark | Kennzeichen |
| signal mark generator | Kennzeichengenerator |
| signal maroon | Signalrakete |
| signal maroon rocket | Signalrakete |
| signal mast | Signalmast |
| signal matching | Signalanpassung |
| signal meter | Signalstärkemesser |
| signal mode | Signalzustand |
| signal multiplexer | Zeichenmultiplexer |
| signal network | Signalwegenetz |
| Signal noise | Rauschen |
| signal of anxiety | Angstsignal |
| signal orange | signalorange |
| signal panel | Signalfeld |
| signal parameter | Signalparameter |
| signal path | Signalpfad |
| signal pattern recognizer | Signalmustererkenner |
| Signal peptide | Signalsequenz |
| signal peptides | Signalpeptide |
| signal phase | Signalphase |
| signal phase position | Signalphasenlage |
| signal picked up | gewonnenes Signal |
| signal pistol | Signalpistole |
| signal post | Signalmast |
| signal power | Signalleistung |
| signal probe | Signalprobe |
| signal processing | Signalaufbereitung |
| signal processing antenna | Signalprozessor-Antenne |
| signal processor | Signalprozessor |
| signal propagation delay | Signallaufzeit |
| signal propagation speed | Signalausbreitungsgeschwindigkeit |
| signal propagation time | Signallaufzeit |
| signal quality | Signalgüte |
| signal readiness | Bereitschaft signalisieren |
| signal receiver | Signalempfänger |
| signal recognition particle receptor | SRP-Rezeptor |
| signal reconstruction | Signalrekonstruktion |
| signal red | signalrot |
| signal reference | Signalreferenz |
| signal reflection | Signalreflektion |
| signal regeneration | Signalerneuerung |
| signal regiment | Fernmeldebataillon |
| signal regiments | Fernmeldebataillone |
| signal regulations | Signalbuch |
| signal relay | Melderelais |
| signal repertoire | Signalvorrat |
| signal representation | Signaldarstellung |
| signal reproduction | Signalwiedergabe |
| signal restoring | Signalwiederherstellung |
| signal return | Signalrückführung |
| signal rocket | Leuchtrakete |
| signal selector | Signalwähler |
| signal sequence | Signalsequenz |
| signal sequences | Signalsequenzen |
| signal set | Signalvorrat |
