Hi,
I am living in Bergen Norway. I have a sky subscription.
I am getting a zero BER signal for all but the most severe weather (once or twice per year) on astra 2d with an Andrews Channel Master 1.2m with feed horn and a 0.3dB C120 LNB.
The encrypted signals on the other sats at 28.2 E are much higher signal strength and are no problem ever.
My official sky digibox has better sensitivity and has never has a bad picture it is only the dreambox 7020s that has problems in the worst weather.
One word of warning the local satellite shops are extremely expensive. I recommend you to source your dish in the uk and the wall mount for that matter.
The 1.2m channel master price in the uk plus shipping plus import taxes is about the same as buying it here, i.e. more than twice the price.. If you bring it with you then you wont need to worry about any of that...
Initially I tried a 90cm dish and it was ok but only in good weather which, does not happen very often in Bergen!
Good luck.
Cheers,
Stvy