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AT&T Long Lines "Oak Hill Tower", San Jose, CA, 2021.

All the pixels, none of the RF exposure, at flickr.com/photos/mattblaze/51


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Matt Blaze

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Captured with the Rodenstock 50mm/4.0 HR Digaron-W lens (@ f/4.5) on a Cambo WRS-1600 camera (with about 15mm of vertical shift to preserve the geometry), the Phase One IQ4-150 back (@ ISO 50) in dual exposure mode (which preserves a couple stops of additional dynamic range into the shadows).

The tower's shape is irregular; it tapers slightly.

The wide angle and panoramic orientation give a bit of context, alone on a hill (which is being rapidly encroached by adjacent residential development).


For much of the 20th century, the backbone of the AT&T "Long Lines" long distance telephone network consisted primarily of terrestrial microwave links (rather than copper or fiber cables). Towers with distinctive KS-15676 "horn" antennas could be seen on hilltops and atop switching center buildings across the US; they were simply part of the American landscape.

Most of the relay towers were simple steel structures. This brutalist concrete platform in San Jose was, I believe, of a unique design.

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sb

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Aww nice! Have you seen the Bell Labs documentary about them?


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Kevin McCurley

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@mattblaze its called "communication hill" and a lot of housing has been built up there now. San Jose is changing rapidly.


@tragiccommons That seems to be a (relatively( new name for it, presumably post-tower. AT&T calls the site "Oak Hill".

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