Ithransmita yilithoni elikhulu le-elekthroniki lomisa imithombo ezingenakho umoya ukuze ulawule izinhlobo zokuvula, njengezinhlobo zokuvula ikhaya labaleka, amathulwa aphansi okanye amaphindavindavu. Isebenza ngokuthumela ithrathimba RF (radio frequency) noma IR (infrared), iyohlukanisa imiyalo ye-user (njengokucindezela inkinobho) kumaqondo athunyelwe faye athunyelwa kurekhodivha onxibini oqhagamshelwe neqondo. Iziphumo ze-RF zisetyenziswa kakhulu ukulawula kude (up to 100 meters) kunye banyuka kuzo izinye iindlela, ke ngoko ke yimele kakhulu kubalekayo noma amathulwa aphansi. Iziphumo ze-IR kudinga indlela enqamuleyo yokubona faye isetyenziswa kakhulu kwiintanda njengezinhlobo zokuvula ikhala. Ezininzi ithransmita zinezakhelo lokusebenza ngokuba yenzi qondo olulodwa ngalolohlo lwesikhathi ukuze akukhathalelwe ukuthunyelwa komlomo noma ukufikelela engavumelekanga. Itransmita sethu yenziwe ukuhlala ngemva, nezifano ezilandelayo ukulawula kwaye amabhateli adlula ngemva. Ayisikweli amanqaku amane, ekuvuleni abasebenzisi ukulawula amaqonga amaningi (njengekhala labaleka kunye nekhala le-rollershutter) ngokuthi nthonyana ithransmita. Ukuya kwinxwelo zokuxeshana, izicelo zokude noma ukuthambeka kurekhodivha, khangela itimu yetekheni.