Newtec Elevation EL978 DVB-S2 L-Band Satellite Demodulator

EL978 DVB-S2 IP Demodulator

This product has reached end of life and has been replaced by the MDM6000 Series.

The Newtec EL978 is a state-of-the-art satellite demodulator optimized for the reception of high speed IP applications over satellite in full compliance with the DVB-S2 standard. In order to achieve speeds up to 160 Mbit/s, only the fastest and most bandwidth efficient encapsulation and modulation parameters are supported.

The EL978 can be used in high speed Point-to-Point backbone links or in star IP trunking configurations, in conjunction with the high speed satellite IP modulator EL178 at the uplink side.  The EL978 offers an auto-switching Gigabit Ethernet interface and integrates seamlessly with terrestrial IP networks and equipment. The data received from the satellite must be encapsulated with Newtec’s XPE (Extended Performance Encapsulation) protocol, a highly efficient system to transmit IP data in DVB-S2.

Efficient Bandwidth

For maximum bandwidth efficiency, the optional FlexACM client allows the EL978 to provide feedback on the link condition to an FlexACM controller located at the uplink site, so that the modulation parameters can be adapted automatically and dynamically.

Newtec EL978 supports the DVB-S2 Multi-stream mode, allowing the IP traffic to be divided in several streams, each stream being transmitted with its own identifier.  When the Variable Coding and Modulation (VCM) mode is activated, each stream can be transmitted with its own set of modulation parameters, further optimizing the transmission efficiency when different streams are intended to different types of receiving sites.

The EL978 has a dual L-band input. The active input is selected by the user and can provide DC power and frequency band selection signals compatible with most professional and commercial LNBs. Optionally, one L-band input can be replaced by an IF input.

The integrated Noise & Distortion Estimator tool provides an accurate reading of the satellite link margin even in presence of non-linear distortion and allows the user to find the optimum input back-off setting very easily for 16APSK or 32APSK operation, whether or not non-linear pre-distortion is applied.

Key features

• DVB-S2 compliant

• QPSK, 8PSK, 16APSK and 32APSK

• Data rates up to 160 Mbit/s

• XPE encapsulation

• Multistream and VCM support

• Adaptive equaliser

• Optional ACM client (FlexACM)

• Noise & Distortion Estimator (NoDE) tool

• Optional 10 MHz reference input/output

Main advantages

• Enables high speed IP links over satellite

• Lower operational costs thanks to highest bandwidth efficiency

• Easy integration with terrestrial IP networks and routers

• High versatility and flexibility

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