It's pretty hard to hide a yagi-uda antenna capable of transoceanic distance communications. The data rates are MUCH lower than what's possible by fiber and microwave, as pointed out in the article.
Companies Pitch Shortwave Radio to Shave Milliseconds Off Trades
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Re: Companies Pitch Shortwave Radio to Shave Milliseconds Off Trades
#12So if glass slows the signal down, would it be possible to use a hollow fiber?
Not with anywhere nearly as good as the 0.28db/km attenuation achieved on modern singlemode 9/125 fiber.
Re: Companies Pitch Shortwave Radio to Shave Milliseconds Off Trades
#13Re: Companies Pitch Shortwave Radio to Shave Milliseconds Off Trades
#14This has been going on for several years at least. These are some pretty good articles from some amateur sleuths: https://sniperinmahwah.wordpress.com/2018/05/07/shortwave-tr... https://sniperinmahwah.wordpress.com/2018/06/07/shortwave-tr... https://sniperinmahwah.wordpress.com/2018/07/13/shortwave-tr... https://sniperinmahwah.wordpress.com/2018/07/16/shortwave-tr...
A big 2018 thread about those: https://news.ycombinator.com/item?id=17028892
Re: Companies Pitch Shortwave Radio to Shave Milliseconds Off Trades
#15I remain convinced that this is Starlink's short-term customer if their promises are true. They are doing transmission via optical as the crow flies. If they're doing O-O, or even low latency O-E-O, they can beat transatlantic fiber. For HFT houses, that's potentially a major edge.
Re: Companies Pitch Shortwave Radio to Shave Milliseconds Off Trades
#16Now they need a bidding market to determine who gets to choose whether to send a 1 or 0 in the next available slot.
And another market for which bits to jam and prevent either value from getting through.
Re: Companies Pitch Shortwave Radio to Shave Milliseconds Off Trades
#17I remain convinced that this is Starlink's short-term customer if their promises are true. They are doing transmission via optical as the crow flies. If they're doing O-O, or even low latency O-E-O, they can beat transatlantic fiber. For HFT houses, that's potentially a major edge.
Starlink might get as much for denying access to specific other parties as for selling access in the first place.
Re: Companies Pitch Shortwave Radio to Shave Milliseconds Off Trades
#18So if glass slows the signal down, would it be possible to use a hollow fiber?
Yes, that would commonly be called circular wavegguide. The issue with using waveguide is that it is very expensive to run over distances. WR-75 flexible waveguide, for instance, costs roughly $1k/ft.
Re: Companies Pitch Shortwave Radio to Shave Milliseconds Off Trades
#19Earlier quoted context omitted.
Microwave is traditionally used to reduce latency caused by fiber’s refractive index. I suppose you could bury waveguides, but an air interface works just as well (besides the occasional weather; better to be fast most of the time). https://arstechnica.com/information-technology/2016/11/priva...
I can assure you, that link already exists several times over. There are dozens of links between Aurora and 350 E Cermak, and dozens more between 350 E Cermak and Cateret, NJ. There's even an entire ISP based off the lowest latency link between Chicago and New York. https://en.wikipedia.org/wiki/Spread_Networks
What's in Aurora? And why West Chicago in the original article?
Amusingly, I grew up 2 towns over from Aurora and live 3 towns from Carteret now.
Re: Companies Pitch Shortwave Radio to Shave Milliseconds Off Trades
#20This has been going on for several years at least. These are some pretty good articles from some amateur sleuths: https://sniperinmahwah.wordpress.com/2018/05/07/shortwave-tr... https://sniperinmahwah.wordpress.com/2018/06/07/shortwave-tr... https://sniperinmahwah.wordpress.com/2018/07/13/shortwave-tr... https://sniperinmahwah.wordpress.com/2018/07/16/shortwave-tr...
A big 2018 thread about those: https://news.ycombinator.com/item?id=17028892
I can recommend the book "Flashboys". It goes into the details why these milliseconds are important, and what role radio plays.