Newtec Satcom Zenith Series LDPC IP Satellite Modem ZN461

ZN461 IP Satellite Modem

This product has reached end of life and is no longer available.  Please contact us for a suitable replacement. 

The highly advanced ZN461 is a brand new LDPC satellite modem designed for low to medium rate Internet Protocol applications over satellite. The modem typically addresses a large set of IP point-to-point or multi-point-to-point applications (e.g. enterprises, government and defense, DSNG, oil and gas, etc.) as from 1.2 kbps. As a default the ZN461 modem connects directly to terrestrial IP network infrastructures via serial connections or alternatively through an optional Ethernet interface.

The Zenith Series ZN461 modem comes with several hardware and software options which allow the operator to carefully select the modem configuration that perfectly fits the application. By flexibly changing the settings the satellite link efficiency can be optimized to the full.

Modulation Coding

The ZN461 supports Viterbi, Reed Solomon and Turbo coding options next to the advanced LDPC coding (Low Density Parity Code). In addition a large selection of code rates and block sizes are available. The LDPC implementation in the ZN461 provides the industry’s highest spectral efficiency and configuration flexibility to squeeze the most out of the satellite’s available bandwidth and spectral power, while keeping processing latency at the desired level.

RF Interface

At the output of the modem the signal is available on a 70MHz IF-band interface by default. L-band, 140 MHz IF-band as well as an internal BUC power supply and reference frequency are available as configuration options, providing a compact and cost effective solution.

Bandwidth Optimization

To further optimize the end-to-end performance of the ZN461 LDPC modem, standard functionality as Automatic Uplink Power Control (AUPC) and remote modem control can be multiplexed into the satellite carrier. The on board acceleration enhances TCP traffic over the link to boost throughput.

Key Features

 Extended LDPC with wide range of block sizes

 BPSK/QPSK/OQPS/8PSK/8QAM/16QAM

 Data rates as from 1.2 kbps in both directions

 Compatible FEC: Viterbi, TCM, Reed Solomon, TPC

 Serial and 10/100 Base-T Ethernet interfaces

 Automatic Uplink Power Control (AUPC)

 Fastest acquisition time: 71 ms at 64 kbps QPSK

 Lowest latency: <15 ms at 64 kbps ¾ QPSK

 10 MHz reference input/output

 Standard 70 MHz IF-band (50-90 MHz)

 140 MHz IF-band (100-180 MHz)

 L-band (Tx: 950-1750 MHz) (Rx: 950-1900 MHz)

 Internal BUC and LNB power (24v & 48v)

 On-board acceleration