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AT&T Long Lines "Oak Hill" Tower, San Jose, CA, 2021. (fedia.io)

submitted 2 weeks ago by [email protected] to c/[email protected]

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

Highly regulated pixels at https://www.flickr.com/photos/mattblaze/51261791084

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[–] [email protected] 1 points 2 weeks ago (1 children)

@[email protected] Aren't microwave networks still used for High Frequency Trading? I know that these are not the same as the AT&T microwave network, rather they are relatively new facilities purpose built for HFT.

[–] [email protected] 1 points 2 weeks ago

@[email protected] Yes, high frequency trading is in a unique space- they don't care much about bandwidth (compared with a telecom network), but they care a lot about latency. Microwave has a faster velocity factor than fiber, so a lot of the trading firms have their own microwave links. Generally shorter distances (a few hops at most), though I believe there's a network of relays between Jersey City and Chicago (mostly using old AT&T sites with newer equipment).