Busy period for factory as new link vehicles roll out..
Posted on: 21st May 2014
Leaving the factory earlier this month was the first of a number of vehicles for BT. Based on a long wheel base, Mercedes Sprinter chassis this hybrid TV Outside Broadcast vehicle has the capability to deliver simultaneous satellite and fibre delivered visions. The sophisticated design includes a 96-port Snell router handling a mixture of 3G and HD baseband signals, and ASI streams. Monitoring is offered via a Snell 8 way multi-viewer onto a 32" display, and two high grade 19" Plura monitors.
The vehicle is equipped with eight ISDN Codecs to handle communications along with GSM and DEL telephone hybrids. All six on board Ericsson encoders can be used for fibre link delivery, interfacing to BT's core media network via three 8-channel IVNP units. To provide satellite links four of the six Ericsson encoders are equipped with DVB-S2 modulators. The satellite transmission chain utilises two 400W TWTA HPAs which are phase combined onto a fully motorised 1.8m AVL satellite antenna. This gives a maximum possible EIRP of around 74dBW, allowing several HD carriers to be uplinked simultaneously. High stability high and low band LNBs are provided for receive transmissions which feed an L-band router and onto multiple Ericsson IRDs.
Mechanically, the vehicle is fitted with a 12kVA on-board diesel generator, diesel-fuelled heater and roof-mounted air-conditioner. At the rear of the vehicle, permanently mounted cable drums with signal termination panels are housed. Following delivery this vehicle went straight into use by BT for multiple contract use across the summer and beyond.
Mark Wilson-Dunn, BT's Vice President of Media and Broadcast commented "this latest addition to our outside broadcast fleet is a visible sign of our commitment to innovation in this exciting market, and we thank Megahertz for an outstanding job well done"
BT Media and Broadcast is the specialist media services enterprise of BT Group, providing media network fibre and satellite services for over 450 media clients globally.