The “DME” is a high quality, professional, flexible and truly costeffective solution for digital satellite uplinks and terrestrial microwave links
The unit consists of a high performance DVB-S/DSNG/S2 Multistandard modulator with up to four MPEG-2 and/or MPEG-4 (H.264/AVC SD/HD) Encoders in a single 1U rack chassis
The DVB-S2 modulation supported complies with ETSI EN 302 307 (DVB-S2 standard) for BROADCAST and DSNG applications: includes all modulation schemes (QPSK, 8PSK, 16APSK and 32APSK), all code rates (both mandatory and optional), CCM (Constant Coding and Modulation), normal FEC frame, Dummy frame Insertion, all roll-off factors and null packet deletion/insertion.
A key function of the modulator is the digital non-linear precorrection with the possibility to store and recall of several setups. This function allows to correct the amplitude and phase vs. level distortions introduced by the high power amplifiers (HPAs), so increasing output power, MER and shoulders performances.
Features also include a 10MHz reference clock and the power supply for the BUC (Block Up Converter).
The DME series, combined with a BUC and a parabolic antenna for the chosen frequency range (usually Ku band - 14 to 14.5GHz - or C band 5.85 to 6.43GHz), makes a complete satellite uplink solution.
Another application of the DME is as encoder/s - digital modulator for agile terrestrial digital microwave links.