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Latest Updates:

Category: - Principal: - Product: Low rate IP Modems Zenith ZN461 - Superseded by MDM6000 - Available from Melcom

Melcom supply Newtec's Low Rate IP Modem - Zenith ZN461 - Now superseded by MDM6000

Key Features

  • Extended LDPC with wide range of block sizes
  • Data rates from 1.2 kbps
  • 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)
  • Optional 140 MHz IF-band (100-180 MHz)
  • Optional L-band (Tx: 950-1750 MHz) (Rx: 950-1900 MHz)
  • Optional internal BUC and LNB power (24v & 48v)
  • Optional on-board acceleration


  • Enterprise
  • Oil & Gas
  • Maritime
  • Government & Defence
  • Satellite News Gathering (SNG)
  • IP based cellular backhaul
  • Disaster Recovery
  • Emergency Communications

Main Advantages

  • Lowest OPEX thanks to highest bandwidth efficiency
  • Wide configuration flexibility
  • OPEX meets CAPEX, Efficiency meets value at low rates
  • Remote in-band management
  • Compatible with other modem manufacturers
  • Supports symmetric and asymmetric operations
  • Smooth migration path towards efficient satellite networks
  • High compactness
  • High versatility & flexibility

Melcom supply state of the art analogue, RF & Microwave components, multi-function modules and sub-systems.

Product name: Low rate IP Modems Zenith ZN461 - Superseded by MDM6000 categories:

Suitable for the requirements of the professional electronics market Satcom.

If you can’t find the product you require please contact us for further information on our extensive range of off-the-shelf and bespoke products or for a quote.

Melcom electronics specialise in Active and Passive Components, Multi-function Modules and Sub-Systems of diverse technologies spanning the frequency spectrum DC to 100 GHz.

Relevant Markets


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