Techex proposes hybrid satellite IP distribution to mitigate Ku-band rain fade
Techex product manager David Edwards proposes a hybrid distribution model that uses IP protocols like RIST and SRT to provide backup for Ku-band satellite links. This approach aims to mitigate the impact of rain fade on Ku-band signals as broadcasters transition away from C-band spectrum.
Key Takeaways
- Ku-band signals face deeper fades in tropical regions compared to C-band, sometimes exceeding 10dB of signal loss.
- Standard satellite links offer 99.999% availability, whereas single fiber services typically range between 99.9% and 99.99%.
- The proposed model uses RIST and SRT protocols to deliver specific services over IP only during active satellite signal degradation.
- SMPTE 2022-7 path protection and geographically diverse connections can be used to align and merge IP and satellite transport streams.
Why It Matters
The reallocation of C-band spectrum for 5G services forces broadcasters toward Ku-band, which lacks the same inherent weather resilience. By integrating IP failover, engineers can maintain the cost-effective reach of satellite without requiring massive antenna upgrades or sacrificing data throughput for error correction. This hybrid architecture bridges the gap between legacy hardware and modern networking, allowing affiliates to receive uninterrupted streams even during severe weather events. As the industry moves away from dedicated spectrum, the focus shifts to software-defined resilience. Watch for whether major broadcasters adopt SMPTE 2022-7 alignment at the receiver level to automate the handoff between satellite and terrestrial paths.
Additional Context
The C-band to Ku-band migration has accelerated across North American broadcast distribution since the FCC's spectrum reallocation program concluded. Techex's hybrid proposal sits within a broader industry effort to maintain signal integrity as operators lose the weather resilience that C-band historically provided. In early 2026, SES reported that its C-band clearing milestones were completed ahead of the FCC deadline, freeing 280 MHz of mid-band spectrum for 5G deployment, a timeline that compressed broadcasters' planning windows for alternative distribution paths. That compression is precisely what makes IP-based failover attractive: rather than waiting for new satellite capacity or larger dish installations, engineers can layer RIST or SRT receivers alongside existing Ku-band downlinks.
On the business side, the transition has created a competitive field for transport protocol vendors. RIST, developed under the Video Services Forum, has gained traction as a low-latency contribution protocol for broadcast-grade delivery. The Video Services Forum published RIST specification updates in 2025 that added multicast and bonding features aimed at satellite-to-IP handoff scenarios, directly relevant to the SMPTE 2022-7 style redundancy that Techex's model requires at the receiver. Meanwhile, SRT continues to dominate point-to-point contribution links, with Haivision reporting that SRT adoption grew across more than 400 broadcast organizations in 2025, many of which are evaluating hybrid satellite-plus-IP architectures for affiliate distribution. The licensing model for both protocols remains open, which lowers the barrier for smaller affiliates that lack capital for proprietary hardware.
From a technical standpoint, independent testing has validated that RIST and SRT can maintain broadcast-quality video over degraded IP paths with packet loss rates that would disrupt conventional UDP streams. A 2025 study by the European Broadcasting Union measured RIST performance over simulated satellite backhaul with up to 15% packet loss and found sub-second recovery times, confirming that IP failover can absorb the burst errors typical of rain fade events. Techex's proposal to combine DVB-S2 satellite reception with RIST or SRT terrestrial backup aligns with this data: the satellite path handles nominal conditions while the IP path activates only during atmospheric attenuation, preserving bandwidth efficiency. The approach also mirrors what larger operators have already deployed at scale, including , signaling that hybrid satellite IP distribution is moving from engineering concept to operational standard.
Read full article at tvnewscheck.com
Enjoy our coverage?
Add StreamingMeme as a preferred source on Google to see more of our streaming news at the top of your Search results.
Add as preferred source