In another QA here, there's a picture of an antenna I identified as a "discone": What are these antennas used for?
One commenter noticed that antenna was actually a "Discone, but no disc, just the cone..." so I gave it a second look:
Sure enough, no "disc". But now I don't even see "the cone" either!
There seem to be two things going on around this mast:
- Wires going from the mast to the ground. I count two sets of four such wires. These wires have a number of "bumps" on them. Probably guy wires to support the tower; with the bumps being insulators which split them up electrically so they don't mess with the pattern as much?
- Some eight or ten wires all around, running from the top of the mast, passing over a hoop halfway down the mast, and then gathering again at the bottom of the mast. These must be the active elements?
Unlike a discone, which is derived from a biconical antenna where two cones meet at their point, this antenna seems to be shaped more like a geometric bicone where two cones are joined base-to-base instead.
What type of antenna — or, antenna array — is this?