Chinese national broadcaster CCTV and regional broadcaster Guizhou TV deployed Aviwest’s PRO380 bonded cellular transmitters to produce Travel China With High-Speed Railway, a TV programme shot and streamed live during the October 2020 Double Ninth Festival.


Aviwest: The journey covered a distance of distance of 857km and included 238 tunnels and 510 bridges

Thanks to PRO380 field units housed in a smart-designed backpack, TV crews were able to stream celebrations from the festival from a high-speed train, capturing the beauty of Chinese landscapes and on-site live interviews and footage.

During the show, viewers took a trip on China’s first high-speed train linking Guizhou with Guangzhou. The Guigang railway links the Southwest with the Greater Bay Area over a total distance of 857km. The railway includes 238 tunnels and 510 bridges, which posed a challenge for reliably delivering live video streams.

“It was extremely challenging to stream live video from a train moving at 250km per hour,” explained Qing Zhang, vice president at Guizhou TV. “We had to maintain good signal resiliency and deliver broadcast-grade video as the train made its way through mountains, crossing 72 tunnels in 70 minutes. Aviwest’s technology enabled us to pull off this incredible technical feat, allowing us to provide amazing images and share in the festival excitement with our audience.

Compact and lightweight equipment enabled the broadcasters to easily conduct live interviews and move freely to shoot images to immerse viewers in the heart of celebrations. Video was delivered to Aviwest’s StreamHub receiver, decoder and distribution platform in the broadcast studio, where it was simultaneously broadcast on CCTV1, CCTV13 and the CCTV website.

“Aviwest SST technology is the key element that made this live coverage successful and even possible,” said Tommy Qiu, China sales and business developer at AVIWEST. “With our PRO3 Series and StreamHub, CCTV and Guizhou TV were able to simultaneously aggregate multiple network connections, dynamically adapting the video bitrate according to network bandwidth fluctuations, protecting stream content and supporting the retransmission of lost data. Our advanced technology and know-how make us well-equipped to continue supporting high-quality video streaming for customers, anywhere in the world, no matter what the conditions.”