UHP is a universal, high-throughput IP satellite modem that can be used to deploy point-to-point, simplex or duplex SCPC (Single Channel Per Carrier) channels or broadcast point-to-multipoint MCPC (Multiple Channel Per Carrier) networks.
  • High-throughput from 150 kbps and up to 225 Mbps duplex in basic configuration
  • Efficient DVB-S2/S2X ACM modulations with 5% or 20% roll-off and support for wideband HTS
  • Adaptive modulation and coding for both directions with all range of supported MODCODs
  • Automatic transmission level control based on information from the remote site
  • Support of SCPC-DAMA mode for dedicated channels on demand
  • Ultra-low latency VSAT system with round-trip delay about 570 ms in a router mode
  • L2 Bridge and advanced IP router with TCPA and throughput up to 190,000 packets per second
  • Built-in adaptive hierarchic traffic shaper and traffic policy manager
  • Fast network startup — network is ready for use in less than a minute upon power-up
  • Compact size, low power consumption and optional automatic 1:1 redundancy
  • Various hardware models, including compact, integrated, rack-mountable and outdoor versions
  • Compatible with majority of C, Ku and Ka-band RF Systems, supplies power and reference signals
  • Compatibility with different mobile antenna systems via OpenAMIP or various proprietary protocols


UHP modem uses advanced modulation and coding DVB-S2/S2X technologies, providing high bandwidth efficiency. Adaptive Modulation and Coding (ACM) feature ensures the maximum throughput of SCPC channel by utilizing the most efficient coding and modulation scheme depending on weather conditions at the receiving side. Interactive, two-way SCPC ACM technology optimizes the link performance and allows saving up to 30% of satellite capacity.

Transmission level control

Automatic transmission level control (TLC) adjusts local transmission level based on information about reception quality at the remote site. The TLC feature may work with ACM simultaneously to compensate increased propagation loss due to weather conditions and to ensure superior reliability of the communication channel.

L2 Bridge and IP router

UHP modem can operate in a "transparent" L2 Bridge mode or serve as an advanced, high-performance IP router (up to 190,000 PPS). The IP router supports a wide range of protocols, VLAN, TCP acceleration, VoIP headers compression, bandwidth management, etc.


Pair of standard UHP modems may work in 1:1 automatic redundancy mode and requiring no external redundancy controller.


Both local and remote UHP modems can be managed with the help of user-friendly web-interface, via SNMP protocol or by specialized UHP Network Management System. UHP modem can provide digital and analog signals representing current quality of signal that can be used by various antenna controllers to track a satellite.

Extended Functionality

UHP is a universal hardware platform with software definable functionality that can be changed remotely and without any need for hardware replacement. Along with SCPC, UHP modem can operate in SCPC-DAMA, TDM/TDMA or Hubless TDMA modes.