Bracknell, UK, Oct. 6, 2026 — Techex, a specialist in software-defined live video workflows, will demonstrate the how tx darwin platform combines satellite and IP delivery at NAB New York 2026, October 21–22, Booth 623. The solution helps broadcasters maintain reliable affiliate feeds while adapting programming and advertising for individual affiliate markets.
FCC spectrum reallocation is vastly reducing the available C-Band satellite bandwidth. While Ku-band offers additional capacity, it can be more susceptible to rain-fade, especially in regions with heavy rainfall. For broadcasters delivering programming to affiliate stations, that creates a practical concern: how to change satellite bands without increasing the risk of interrupted feeds. tx darwin combines IP with satellite delivery to keep Ku-band feeds available when the satellite path degrades.
When a satellite signal deteriorates, tx darwin draws only the affected service over IP and seamlessly merges it with the satellite feed at the receiver. This maintains continuity without requesting retransmission of lost packets or adding to end-to-end latency. The platform also supports SRT and RIST protocols for IP transport, with SMPTE ST 2022-7 protection across separate IP paths strengthening delivery resilience.
"Broadcasters shouldn't have to choose between staying on satellite and moving wholesale to IP. Ku-band can provide the capacity, but nobody wants to explain a rain-fade outage to an audience during a live event. Using technology and vendor-agnostic IP solutions to seamlessly cover the affected services lets broadcasters move affiliates to Ku-band now with confidence," said Tim Jackson, Senior Director, Sales and Business Development, Techex.
Techex’s tx darwin also supports local blackouts and seamless content replacement directly in the compressed domain, avoiding quality loss from re-encoding and additional encoding latency. Time delay and content replacement allow broadcasters to create market-specific programming across time zones, while SCTE-35 manipulation enables individual affiliates to insert local advertising and maximize revenue opportunities. Forensic watermarking supports content security and traceability at scale, and comprehensive delivery analytics provide visibility into the streams reaching every affiliate.
Hybrid satellite and IP distribution, master control and affiliate delivery run on the same modular tx darwin platform. Broadcasters can deploy it on premises, in the cloud or across hybrid environments, placing workflows where they need them without committing to a single infrastructure model.
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About Techex
Trusted by premier global broadcast and media customers with their most valuable live workflows, Techex transports, protects and transforms live video over IP, in the cloud, on prem or hybrid. Its expertise ensures the safe and secure delivery of high value content, where precision, scalability and flexibility are paramount. Using its extensive broadcast experience, Techex supports organizations in transitioning to IP and the cloud. Techex develops its own award-winning software and partners with market-leading technology companies developing an ecosystem of best-in-class solutions and services which can handle the most challenging scenarios. In a market where customer expectations continually evolve, content providers require solutions that deliver reliable and high-quality video whilst optimizing cost and operational efficiencies. Techex bridges the gap between.

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