Project Description
Project of 2 fly-away stations to provide the client, a national TV operator, with the necessary equipment to ensure the transmission of audiovisual programs for the coverage of urgent and important events from any point, based on a transportable satellite link.
Each system is basically made up of a transmission chain, which receives the baseband video and audio signals and processes and adapts them for transmission via satellite, and a reception chain for signal monitoring.
BTESA’s experience as a systems integrator has been key for designing a compact and rugged solution, allowing easy transport in suitcases suitable for air transport, well-protected electrically, and optimizing the deployment of equipment for its operation.
From a technical point of view, each transmission chain is made up of 3 subsystems:
- Baseband subsystem: from the digital video and audio inputs in HD or UHD, encoded under the H264 or H265 compression standards, it delivers an L-band signal modulated according to the chosen DVB-S standard, all in a redundant configuration 1 +1.
- RF subsystem: by means of 2 TWT amplifiers in a 1+1 redundant configuration, it converts the input signal from L band to Ku band and amplifies it at its nominal level.
- Antenna subsystem: sends the Ku band signal by means of a 1.5 m diameter fly-away antenna, motorized and automatically controlled for tracking the direction of the satellite.
Each reception chain allows receiving the satellite signal and monitoring its content. It consists of an LNB to convert the Ku band signal to L band, a satellite receiver for signal demodulation and a monitor to view the live signal.
Additionally, measurement equipment (spectrum analyzer, transport stream analyzer), configuration equipment (laptop PC, IP switch), and operating accessories (electrical cable reels, HD video cable, and tool cases) are also delivered.
BTESA mechanical systems engineering has actively collaborated to improve the portability of the system, proposing several possible distributions in terms of the number of fly-cases and weight of each box, reaching a compromise solution in which no box exceeds 35kg, and adding wheels and handles for easy transport.
On the other hand, BTESA’s electrical systems engineering has added several improvements to the basic requirements of the client, designing a very robust power distribution system equipped with the necessary protections to guarantee the service. All the equipment installed in a fly-case has been connected to a single electrical outlet so that the procedure of connection of all the equipment to the common AC input panel during deployment is faster. Said panel has circuit breakers for all its sockets, so that everything is protected against the usual AC mains surges in temporary deployments.
