I have a couple of 5.8 grid antennas, one place got about .5 to 1m of snow up the mountain the other month. The link never dropped off even when the snow was falling quite heavy. I will be changing to a dish with radome for next winter, but quite impressed anyway. When I did get up there the was still 300mm snow on the ground and a heap of ice at the base of the antenna, so there must have been some ice up there. The radome ones are good as gold which I use now days.