3 ms·
That is completely different definition of HF. And if they use radio (lower latency than fiber, in theory and in right circumstances ), it is somewhere between
by dfox 3y ago
That is completely different definition of HF. And if they use radio (lower latency than fiber, in theory and in right circumstances ), it is somewhere between SHF and EHF (C through V in the IEEE nomenclature), ie. what sane person would informally call “microwave”, not HF.
- jrockway 3y agoThere was a thread on here the other day about HF traders using HF radio.
- tomjakubowski 3y agoYes that's right, also known as shortwave radio. https://spectrum.ieee.org/amp/wall-street-tries-shortwave-radio-to-make-highfrequency-trades-across-the-atlantic-2650277134 https://spectrum.ieee.org/amp/wall-street-tries-shortwave-ra...
- dfox 3y agoWell, the article itself does a pretty good job of describing why it is not an exactly good idea. What it does not say (and what probably nobody suggesting that ever though about) is that the sky-wave propagation mode is either about reflection off the ionosphere or refraction effects of the ionosphere, both of which means that the propagation path is significantly longer and in the refraction case over “slower” medium. The resulting latencies are almost certainly large enough that the whole thing does not make sense even before thinking about the bandwidth and frame sizes.
- jrockway 3y agoAnother thing that got posted here a couple days ago was the Burrito Tunnel: https://idlewords.com/2007/04/the_alameda_weehawken_burrito_tunnel.htm https://idlewords.com/2007/04/the_alameda_weehawken_burrito_... That's where the high-frequency traders should put their fibers ;)
- runlaszlorun 3y agoMan that really had me scratching my head for the first few sentences… haha. The fake link was a nice touch to build credibility. I’m not on my desktop where I can view source, but I’m guessing it’s an href pointing back at its self.
- op00to 3y agoObviously you know more than HFTs which never put thought or engineering into anything. They’re well known dopes who are really bad with technology and money, right?
- deleted 3y ago[deleted]
- op00to 3y ago100% wrong.