September 1, 2009 15:43.31

New DVB-S2 Modulator for satellite uplinks and Microwave Links
ABE has now implemented in its digital modulators, in addition to the existing DVB-S and DVB-DSNG standards, the DVB-S2 standard.

The new modulator (which covers all 3 standards), can have IF outputs at 70MHz and L-BAND. Moreover, the solution can also include up to 4 MPEG encoders and multiplexer.

The modulation schemes supported for the DVB-S2 are: QPSK, 8PSK, 16APSK and 32APSK. Error-correction codes implemented with LDPC (Low Density Parity Check), are much more efficient than the convolutional codes employed in the DVB-S standard (by approximately 2dB) and really close to the theoretical Shannon limit.

In comparison with the DVB-S standard, for the same bandwidth and the same signal level, the DVB-S2 standard can support an increase in transmission capacity (BIT-RATE) greater than 30%.

The DVB-S2 modulator is mainly employed in Satellite Uplinks and terrestrial Microwave Links.

Furthermore, ABE has also developed a DVB-S / S2 receiver board that can be included in the digital and / or analogue transmitters or provided in a stand-alone unit.

Last but by no means least, the average price of the DVB-S2 modulator is similar to the DVB-S / DSNG modulator, even when market prices are normally much higher.
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