Java/JDK/OpenJDK developer, Oracle Corporation. The views expressed here are my own and do not necessarily reflect the views of Oracle.
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@mattblaze@federate.social Many years ago there was, I guess, some kind of microwave link atop a hill above San Rafael (Marin County, north of San Francisco). It wasn’t a concrete tower like this but was some kind of metal frame supporting four horn antennas pointing in the four cardinal directions. From a distance it looked like a conference table surrounded by four chairs. I’ve looked for a picture in vain. I think it’s gone now.
@mattblaze@federate.social This video from the open space district that manages the area has a still photo showing the antenna atop the building:
https://youtu.be/APCx1zOdTH0?si=MfuKZu6DQpY2zzBu
It’s interesting that this antenna was exposed, whereas others, like the ones atop Mt Tamalpais in Marin (north of SF), had “golf ball” enclosures:
https://commons.wikimedia.org/wiki/File:14_MWS_%28Det_3%29,_Mill_Valley_AFS,_CA.jpg
@mattblaze Oh wait they might be visible on Google Maps satellite view if you zoom in all the way. It looks like the four horns are still there but not pointing in cardinal directions.
https://maps.app.goo.gl/ZvZb7URSSDQNW3QU9?g_st=com.google.maps.preview.copy