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B&D Tri-Tran® 4 channel garage remote control
All new B&D Controll-A-Door® openers now feature unique Tri-Tran® multi frequency operation. Tri-Tran® has an automatic frequency change function, with each of its three frequencies transmitted having a much tighter bandwidth. The frequency changes every 22mS during a transmission and reception.
So if there is another signal interfering on a part of this frequency spectrum, the automatic change ensures the signal still reaches the opener. This makes Tri-Tran® up to one thousand times better, in terms of in band interference rejection, than a typical FM receiver, and up to a million times better than some AM receivers.
Suits models: ATA Trio, ATA Rhino, B&D Tri-Tran® openers only, B&D Controll-A-Door® P, B&D Controll-A-Door® P Diamond, B&D Controll-A-Door® P Diamond Whisper Quite, B&D Controll-A-Door® Diamond Power Drive.