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.