Satellite Modems

Evolution modems and switch

Q-Flex Modem


The Q-Flex modem is a flexible software-defined modem that does what you want, now and in the future. Any waveform, any interface, IF and L-band, and data rates to 200Mbps. Plus fully-featured embedded IP (acceleration, compression, bridging, routing, encryption, shaping, ACM, etc.). And comprehensive diagnostic tools (including Rx spectrum monitor, Rx constellation monitor, interference detection underneath carrier, BER tester, etc.). Highly competitive pricing is achieved by enabling only the features you need at any time. Future-proofing is assured by convenient software upgrades via Ethernet or a memory stick and lots of processing headroom, protecting your investment.

The Q-Flex modem supports the most powerful bandwidth-saving technology available. DVB-S2/S2X, unequalled for its robustness and bandwidth efficiency, is supported. Paired CarrierTM overlays transmit and receive carriers reducing satellite bandwidth by 50% (using ViaSat’s patented PCMA technology). FastLink low-latency LDPC has been designed for latency-sensitive applications while giving coding gain that is close to the theoretical limits. Advanced bandwidth-saving IP features reduce the required satellite bandwidth to a small fraction of the raw traffic bandwidth.
Q-Series Documentation


Modem Documentation