DBu/E01 - Digitaler TaschensenderDescription The DBu transmitter is a 4th generation design with specially developed, high efficiency digital circuitry for extended operating time on two AA batteries. The transmitter can tune in coarse or fine steps across the UHF television band from 470 to 608 MHz (470 614 MHz for export versions), with a selectable output power of 25 or 50 mW. The pure digital architecture enables AES 256 CTR encryption for high level security applications. The