foliage...

I have a story about a palm tree and microwave - although in this case it was Ku band satellite.  I was setting up a satellite trailer in San Diego many years ago.  There was a palm tree south of us that was at quite an angle.  It looked like we were shooting below the head of the palm tree, but when using an offset fed dish, it can be deceiving where it's actually pointed.  Just could not get the signal we were expecting, and the signal would wander up and down a bit.  Finally got out a protractor and measured the angle and sure enough, we were going right through the head of the tree.  As the tree moved in the wind, we were seeing the signal going up and down a bit.  Moved the trailed about 50 feet and the path lined up perfectly.