Live Multi-Site Dual Screen Transmission, Satellite Solution

Live Multi-Site Dual Screen Transmission, Satellite Solution

For multisite churches, the common satellite delivery solution is the single-screen presentation.


MSRP $200,000

LCBC Church, a Central Pennsylvania multisite church, approached Ka You Communications with a unique challenge: to help them carry out their goal of having "one look, one voice, one message" by re-creating the dual-screen presentation found at the main campus at their five remote locations. The church had previously looked at terrestrial-based solutions, but soon realized these were complex and too expensive.

Ka You Communications’ engineering team designed a system for LCBC that includes individual HD video encoders for both screenshots and four stereo audio feeds. A transport stream multiplexer (mux) was used to combine the outputs of both encoders. The mux provides a single transmission stream that includes both video feeds and eight stereo audio feeds to a satellite RF modulator, which drives the satellite uplink's amplifier to feed the transmission to a geo-synchronous satellite.

The satellite receives, converts and re-transmits the signal back to the Continental US. At the remote campus, a small, unobtrusive satellite antenna receives the feed and delivers it to the dual high-definition video decoders located within the A/V technical booth. The two decoders separate the individual video feeds from the multiplex transmission and enable the tech staff to deliver to separate projection screens.

Upon installation, LCBC's recording devices were found to need an even tighter specification for the frame synchronization than previously expected. Although the decoders came with "Genlock" as a feature, the HD video recorders used by LCBC required a tighter spec. Ka You Communications wanted LCBC to not only have a great picture to the projectors, but also the same clarity for potential recording devices. To solve this issue, an additional out-board frame sync generator was added at remote locations.

The unique attributes of a live satellite delivery make it the perfect fit for LCBC and other multisite churches. Ka You only uses broadcast-grade satellite technology in its systems systems highly resistant to weather or atmospheric conditions.

The sophisticated system is extremely reliable, yet simple enough for staff and volunteers to operate. LCBC can choose to send video messages live for immediate play or store them at remote campuses for delayed playback. The flexibility of this system gives their team the convenience of planting a remote campus anywhere. A simple dish, receiver and additional frame sync generator is all that is needed to feed dual screens.

LCBC Church has achieved the goal of dual screen video through broadcast-grade satellite technology. Being live has enhanced the spiritual growth of the church's congregants. No longer are remote campuses seeing last week's sermons. Now, even if members attend different locations, their interactions are enhanced by the immediacy of the message. With live, dual screens via satellite, everyone has the same point of reference.

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