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[CSIRO]Aussie tech creating (milli)waves in US financial market

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To conduct high-frequency trading, financial traders need large amounts of data transferred over long distances instantly, or as close to instantly as possible. Millionths of a second make a difference. Traditionally, this task is carried out by optical fibre networks and low data rate wireless networks. However, information travels through optical fibre about one-third slower than it does through the air. So a fibre-speed wireless (RF) network would provide the ultimate solution.
Quote:
This was the opportunity identified by Spread Networks in 2012, a US-based low latency network provider. With these requirements in mind, Spread Networks conducted an exhaustive worldwide search for technology that would meet their needs. Their lens fell on Australia and E-band technology being pioneered in our data innovation group, Data61.

From the CSIRO Facebook page:
Quote:
With ever increasing data loads on wireless systems, everyone's looking at the seldom used wavelengths in the E-band to manage. We figured out a way to take complete advantage of this band, creating the highest performing radio of its kind. It's now being used in the NYC stock exchange servers.
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post #2 of 7
Hmmm .. doing financial transactions over the wireless network. What could go possibly wrong wink.gif
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post #3 of 7
Im not the biggest expert on the subject, but how is the speed of light 1/3 slower than radio frequency in travel speed over distance?
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post #4 of 7
Thread Starter 
Quote:
Originally Posted by EniGma1987 View Post

Im not the biggest expert on the subject, but how is the speed of light 1/3 slower than radio frequency in travel speed over distance?

Yeah, I'm not sure on that one. Didn't seem right to me either headscratch.gif but I'm just going to assume the Commonwealth Scientific and Industrial Research Organisation probably knows more than I do about it.
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post #5 of 7
Quote:
Originally Posted by dragneel View Post

Yeah, I'm not sure on that one. Didn't seem right to me either headscratch.gif but I'm just going to assume the Commonwealth Scientific and Industrial Research Organisation probably knows more than I do about it.

The optical properties of the fiber are different from the optical properties of the air. That is how an electromagnetic phenomena in air can travel "faster" than a electromagnetic phenomena in a different environment.
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post #6 of 7
Thread Starter 
Quote:
Originally Posted by Carniflex View Post

The optical properties of the fiber are different from the optical properties of the air. That is how an electromagnetic phenomena in air can travel "faster" than a electromagnetic phenomena in a different environment.

Oh awesome. Thanks for clearing that up, always enjoy learning something. biggrin.gif
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post #7 of 7
Quote:
Originally Posted by Carniflex View Post

The optical properties of the fiber are different from the optical properties of the air. That is how an electromagnetic phenomena in air can travel "faster" than a electromagnetic phenomena in a different environment.

Right.

"The speed of light", as is commonly referred to, is actually the speed of light in vacuum.

The speed of light in air, or through glass, or water, or jello, etc are all slightly different. Add in refraction and other effects that cause not-so-perfectly-direct travel and this diverges even more.

Fiber optic cables use glass and mirrored surfaces. Pretty good, but not quite as good as air, which in turn is still not quite as good as vacuum. Ideally, we should be running mirrored vacuum "filled" tubes in perfectly straight lines between nodes, but obviously that isn't very practical.
Edited by Zero4549 - 3/4/16 at 3:02am
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