Good luck with running that extra cable.
If it helps, there are diagrams showing the typical loftbox arrangements at http://www.satcure.co.uk/tech/loftbox.htm and http://www.satcure.co.uk/tech/loftbox5.htm (pretty sure they're not a competitor for anything OcUK sells). These all seem to use F connectors, so you'd need to get some of these as well as any TV/FM decombiner wall plates you might want.
Re the masthead amp, lucid & I are wondering if you currently have one (we're not suggesting you would need a new one). Let us know if you find one, and if it has it's own power supply, as it may affect what you'd need in the porch.
If it helps, there are diagrams showing the typical loftbox arrangements at http://www.satcure.co.uk/tech/loftbox.htm and http://www.satcure.co.uk/tech/loftbox5.htm (pretty sure they're not a competitor for anything OcUK sells). These all seem to use F connectors, so you'd need to get some of these as well as any TV/FM decombiner wall plates you might want.
Re the masthead amp, lucid & I are wondering if you currently have one (we're not suggesting you would need a new one). Let us know if you find one, and if it has it's own power supply, as it may affect what you'd need in the porch.