The EL470 is a state-of-the-art satellite modem designed for the transmission and reception of IP streams over satellite at rates of up to 133 Mbit/s in full compliance with the DVB standards. The EL470 modem connects directly to terrestrial IP network infrastructures via a dual auto-switching Gigabit Ethernet interface.
The EL470 comes with several hardware and software options and can be used in Point-to-Point links as well as in Pointto-Multi Point networks. It is compatible with a wide range of encapsulation protocols: data piping, MPE, ULE, GSE (Generic Stream Encapsulation) and Newtec’s XPE (Extended Performance Encapsulation).
The EL470 is capable of receiving DVB-S2 Multistream and VCM signals and can optionally transmit in VCM mode.
For maximum bandwidth efficiency and ease of operation, the EL470, has an embedded point-to-point FlexACM controller option that allows to automatically and dynamically adapt its uplink modulation parameters in function of the link condition. The FlexACM client option provides the modulator/modem on the other side of the satellite link with feedback on the conditions of the received signal. When two modems both equipped with the FlexACM controller and client options are connected to each other, they negotiate automatically and dynamically their configuration parameters in both directions. At the output of the modulator, the signal is available on an L-band interface. Extended L-band, IF-band as well as BUC power supply and reference frequency are available as configuration options, providing a compact and cost effective solution. The EL470 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 (NoDE) 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 predistortion is applied .
• DVB-S2 and DVB-DSNG/S compliant
• QPSK, 8PSK, 16APSK and 32APSK
• XPE, GSE, MPE, ULE encapsulation
• Data rates up to 133 Mbit/s in each direction
• Adaptive equaliser (demodulator input)
• L-band monitoring output
• Programmable amplitude slope equalizer (L-band output)
• Noise & Distortion Estimator (NoDE) tool
• DVB-S2 Multistream
• Optional extended L-band
• 2 Mbaud for low rate applications
• Optional VCM and ACM operation