my DC is in the shed, patch ant on the shed, under clear sky. at night, no specific time, the snr goes from daytime avg of 11 to nighttime around 1.5 - 2. i tried to dry off the antenna, 3 different sources of power, rebooted, disconnected and reconnected the antenna, checked connections, re-pointed the antenna, nothing seems to fix it other than sunrise. The DC never stops working, it always produces the skylark web page, just stops receiving sometimes. i'm beginning to think that either the antenna or the DC is thermally sensitive. it seems to need the heat to work. maybe try heat lamp next see if i can figure it out. also i have a pi/rtl/passive ant/amp combo waiting for assembly, i will install it in the same place, see if i get similar snr.