> like this ? > > http://www.ufomind.com/area51/orgs/basecamp/pix/vortac.jpg > > it's a VOR beacon, isn't it ? Yes, it is. It's a 2nd (or perhaps even a 3rd) generation VOR with a solidstate (vs rotating) TACAN antenna on top. However, I've not seen one with the building housed beneath the antenna support structure like this. Interesting. Dave