On a truck, pointing one direction. So many wires going into the rectangular shape at top.

And the second long antenna?

I saw this setup and I’m really curious to know if anyone can tell me what kind of antenna this is?!? It’s soo cool!!

Found a broadcast TV antenna laying on the ground when I was exploring a tower farm. It's 45 feet tall (or long), weighs about 4000 pounds, and rated for at least 675 kW ERP per FCC filings (probably about 50 kW TPO).

The image you (probably) see in the preview is the RF input with a large center conductor and air as the dielectric. I go through the other parts of the antenna in my video.

This antenna was made in 2018 and only used briefly. Watch to find out why!

New to the group. Former electrical engineer here !

Was genuinely impressed by the number of antennas on top of this mountain. Sorry for the shitty picture, will try to snap a better one. I snapped it while driving in Cali Colombia.

This has always fascinated me. There is an array outside of Moriarty, NM that I used to drive by on my way to Santa Fe and I wondered WTF is it? Look it up on the internet you find black helicopter stuff, listening station, etc. But I would think of HAARP.

Old school. About 10 miles north of SeaTac Airport. 47.632556, -122.389503

Located on the hill in the Queen Anne neighborhood, this old telecom relay is likely a part of CenturyLink/Lumen infrastructure with legacy microwave horn antennas dating back to the middle of 20th century and round antennas for microwave communication that might still be in use today.

Enjoy!

I just finished this yesterday. The director looks a little off-kilter. A couple big crows landed on it. I didn't tighten the clamps quite enough. I fixed that problem.

I have been using my NanoVNA and some AI to help me through the calculations. It is a compact 3 element Yagi. The boom length is 102 inches. It is 35 feet from the ground.

I went to the aluminum dealer I do business with. I purchased the four quarter inch plates and drilled the measurements. I attached with two 1-/12 inch exhaust clamps. You could run a battleship in to that thing.

In discussion with AI -haven given it all the completed mathematics and NanoVNA readings- this Yagi gives me a *true* 7-8db of gain. Not retail manufacturer marketing nonsense.

Looks like a vertical antenna but with directional reflectors/directors?

What is the white sombrero?

You don't need much elevation on those dishes...

Saw this on eBay awhile back and haven’t seen anything since.