I do this, and have checked my logs and found evidence of several surveillance aircraft. See my comment below with more details (https://news.ycombinator.com/i

I do this, and have checked my logs and found evidence of several surveillance aircraft. See my comment below with more details (https://news.ycombinator.com/item?id=9508812 https://news.ycombinator.com/item?id=9508812).