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Teledyne Paradise Datacom has developed a cost-effective solution for satellite point-to-multipoint RF networks using the Internet Protocol (IP). The Q-MultiFlex™ combines an “outbound” modulator with demodulators for up to 16 return carriers within a 72 MHz bandwidth.

The Q-MultiFlex system is scalable to any network size and can handle star, mesh and hybrid point-to-multipoint topologies. Typical applications include cellular backhaul, IP distribution, government, enterprise, and oil and gas networks.

The modulator supports the bandwidth-efficient DVB-S2X standard, with spectral roll-off factors as low as 5 percent. The outbound data rate can be as high as 160 Mbps. The demodulators process FastLink™ low-latency, low density parity check (LDPC) return carriers, with a maximum cumulative data rate of 160 Mbps across all carriers.

The system incorporates three features to optimize the bandwidth, especially important in satellite applications. In addition to DVB-S2X modulation, Paired Carrier™ overlays the transmit and receive carriers to reduce bandwidth by 50 percent. The use of adaptive coding and modulation (ACM) allows unused link margin to be converted into higher throughput.

The Q-MultiFlex has a BNC IF interface, with dual bands covering 50 to 90 and 100 to 180 MHz, and a Type-N L-Band interface covering 950 to 2150 MHz. The data interface is a standard Gigabit Ethernet RJ45 connection.

Teledyne Paradise Datacom
Rancho Cordova, Calif.