Well two problems here the first being that to receive
Digiturk from W3a on 7 deg East which is transmitted on the
Europe B beam you would need a big dish probably 1.5 mtr if the footprint is to be believed (which is bigger than allowed without planning permission). The second is that it is encrypted in Irdeto 2 and/or cryptoworks and as I am not well up on what will open up these days I no not know if it can be opened using softcams/emulators. Can I ask why you want that channel only?