The signals are weak even at north eastern locations, idearly for sustained quality reception you should invest in a 1.5 mtr.
There are many reports from individuals that have recieved with a smaller dish but when the rain and poor weather comes then it becomes much more difficult.
Some transponders the Europe beam for example can be recieved on a 90 cm However the Nordic beams are around 38-42 db for most parts of North east, and require much larger for good reception.
Regards
Old Satellite