Discone antenna and weather station.
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/mrt77/">mr_t_77</a>
CC BY-SA 2.0
<a rel="nofollow" class="external free" href="https://www.flickr.com/photos/mrt77/2310432841">https://www.flickr.com/photos/mrt77/2310432841</a>