Gordon MacPherson wrote...

The DAB has an F type connector. I would like to
be able to use both FM and DAB from the single cable.

1. If it is possible, what would be the most effective way of setting this
up?

It depends on your existing signal level, if it is good then you could
use a simple passive splitter but you may need to use a signal booster
to compensate for the loss incurred in the splitter.

I'm in a similar situation, in that our communal aerial system provides
a single combined (very good) FM/DAB feed.
I tried various ways of getting this to to my FM & DAB tuners
including a couple of passive splitters and they were fine for DAB but
degraded the FM signal too much compared to a direct connection.

In the end I got one of these 1 in 2 out amplifiers
http://www.philex.com/catalogue/prod...d=116&cat=1069
which works well for both DAB and FM. It has a variable gain control
which allows you to fine tune things.

Here are the results of using that on the end of a much derided FM
halo.
http://goo.gl/maps/sF9Yh

--
UnsteadyKen