The EN-91 is a ultra-low delay MPEG 4 AVC/H.264 high definition encoder. The ultra-low delay mode requires the use of Adtec’s RD-60 IRD and delivers picture-to-picture services in 100 milliseconds; The EN-91 standard delay mode is fully interoperable with other IRDs making it ideal for mission critical trunking and ad-hoc applications. MPEG 4 AVC/H.264 is significantly more efficient than JPEG making it the CODEC of choice for multiplexed and bandwidth sensitive applications; AVCs inherent interoperability significantly adds to the value of solutions based on this industry standard.

The lightweight, 10 pound or 4.5 Kilo EN91 offers amazing features and specifications in its 1 RU chassis, including redundant AC power supplies, enhanced control and monitoring via its front-panel, a browser and SNMP; video support includes SD, 2D-HD and 3D AVC 422, sixteen channels of audio, robust VBI support, reliability and easy of use all for an extraordinary value. In addition to encoding audio, the EN-91 pass-through support includes PCM, DolbyE (16 and 20 Bit) and Dolby AC3 (2.0 and 5.1).

The EN-91 encodes and concurrently transports services via ASI, IP and DVBS/S2. The DVBS/S2 modulator is available in IF or L-band with modulation modes ranging from QPSK up to 32APSK based on software licenses.