Splitting DAB Feeds

[Radiognome]

We have a dab feed that comes down from our roof ariel to one room on some pretty meaty coax.
I want to split that feed into three, one to stay in that room, and take two 100m feeds from that room to two other dab recivers in other rooms.

1)Do I need some kind of amplifier on where I split the feed?
2)What coax should I buy for lowest signal loss for those 100m runs

Cheers

Radiognome

[pentode]

I use the same type of coax cable for DAB as the TV aerial. Any TV amp/splitter (such as made by MAXVIEW) should be fine for DAB as they are wideband amplifiers and easily cover the DAB spectrum (but don't get a amp/splitter that has TV & FM outputs).