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> Why aren't HFT firms using short wave radio (DXing)? They are. See mshook's response, with nice reference links downthread: https://news.ycombinator.com/item
by bostik 9y ago
> Why aren't HFT firms using short wave radio (DXing)?
They are. See mshook's response, with nice reference links downthread: https://news.ycombinator.com/item?id=16196339 https://news.ycombinator.com/item?id=16196339
- mkj 9y agoThose are microwave which basically need line of sight? I was thinking of lower frequencies which can sometimes go hundreds of kilometers without repeaters.
- Retric 9y agoYou want your severs as close as possible to an exchange. Even 2 miles is a noticeable increase in latency.
- jlgaddis 9y agoBandiwdth, mostly. The lower you go in frequency, the less bandwidth is available. The entire "HF" spectrum is ~30 MHz. My Wi-Fi at home uses a wider channel than that. The lower frequencies -- that will travel across the ocean, unaided -- don't have anywhere near the bandwidth necessary (to support the throughput that they need).