Beijing-based China Central Television (CCTV) used fiber-optic transmission systems from Telecast Fiber Systems to transmit live video of the Chinese ascent of Mt. Everest, completed on May 21.
Telecastâ€™s CopperHead camera-mounted transceivers and Viper modular fiber optic platform acted as an intermediate link in a microwave-to-fiber transmission path and carried CCTVâ€™s signals over 3,300 vertical feet down the mountain.
Telecastâ€™s CopperHead camera-mounted transceivers transmit video, audio, intercom, and camera-control data in both directions over a single, lightweight optical fiber.
Video signals from a camera located at the summit were transmitted via microwave to Camp 4, located at 23,058 feet. CCTV then used a set of CopperHeads stationed at Camp 4 to relay the output of the microwave receiver via two-core fiber to the Advanced Base Camp (Camp 3), located at the 21,326-ft. elevation mark. Due to the harsh environment, the CopperHeads were installed in parallel for redundancy.
The signals were then transferred to a Telecast Viper mussel shell system at Camp 3 and transmitted further down the mountain on two separate fiber runs to the 19,686-foot level at Camp 2. All of the fiber optic cabling utilized by CCTV had a custom white jacket due to the networkâ€™s specific needs in the environment, since black cabling causes snow to melt around it during the day and refreeze around it overnight.
Telecastâ€™s camera-mountable CopperHead transceivers transmit video, audio, intercom, and camera-control data in both directions over a single, lightweight optical fiber. The compact systems also transmit return video for the viewfinder and monitor, as well as black burst return. The Viper is a fiber optic system with plug-in modules that handle NTSC/PAL, 601 SDI, and format-independent HDTV communications. The Viper system also simultaneously handles analog audio, AES/EBU, intercom, CCU data, and closure circuits.
For more information visit www.telecast-fiber.com.