Friday, 27 November 2009

Transmission - Planning a Fly-a-way

We've been given the go ahead for Rave Live, and it's to be staged in Matter. As in previous years it is our engineering goal to transmit over DTT, but that means we either have to leave the Transmission and Presentation suites back at Ravensbourne with students keeping watch, which is no good as they will then not get to meet any delegates or see the rest of Rave Live, or we can fly the kit up-to Matter.

To fly TX along with the multitude of other areas needed to make this work is going to be a major feat, but with the right amount of planning and preparation it can be done, then there is the issue of whether or not we will actually be able to transmit from Matter due to licenses/be allowed an aerial fixed to the roof etc, and there is an all round agreement that even if we can't, we will still modulate the channels and loop the feeds back into the venue over cable and onto set-top boxes to prove that we have the technological knowledge and prowess to act as a fully functioning TV center.

During a meeting yesterday we discussed the systems that we would need to take with us along with how well they would fit into rack units. We came to the conclusion that the system installed in Pres/TX at the moment is pretty much the most basic it can get, there is very little redundancy and a few pieces of equipment need to be hired/borrowed (the COFDM modulator, an IRD with an integrated RF card). It was also decided that due to the complexity of creating this fly-a-way we would need start as soon as possible, leaving spaces for the
missing kit.

Instead of taking the equipment out of the TX racks and then putting it straight into a mobile rack we need to build the system on the desks in E-lab. This way cable lengths, numbering and equipment configuration can be sorted out, then the kit can be taken separately to the actual rack units, making the move much safer to both us and the kit, then installed on site.

The planned system for the Automation fly-a-way

The planned system for the TX fly-a-way

No comments:

Post a Comment