4 ms·
HFT already uses HF radio bands between the UK and USA which is lower latency than either submarine fiber or starlink will be. Although much more limited in kbp
by walrus01 4y ago
HFT already uses HF radio bands between the UK and USA which is lower latency than either submarine fiber or starlink will be. Although much more limited in kbps.
Big ass yagi uda antennas in certain locations with totally custom rf chains and modems.
- lxgr 4y agoFascinating! I've heard about microwave relay towers used for HFT through an amazing series of blog posts [1], but HF is news to me. Do you have any sources/further reading? I'd be curious what type of licensing that operates under etc. Edit: Turns out there's an article on it on the very same blog [2]! [1] https://sniperinmahwah.wordpress.com/2014/09/22/hft-in-my-backyard-part-i/ https://sniperinmahwah.wordpress.com/2014/09/22/hft-in-my-ba... [2] https://sniperinmahwah.wordpress.com/2018/05/07/shortwave-trading-part-i-the-west-chicago-tower-mystery/ https://sniperinmahwah.wordpress.com/2018/05/07/shortwave-tr...
- walrus01 4y agoExperimental licenses so far or straight up illegal, they're making much more money than any FCC fines would be. The FCC enforcement bureau is actually pretty small and doesn't come after you until you really screw up someone else's pre existing licensed service. All FCC fines are public info (called a notice of apparent liability and published in their daily data dumps), I've yet to hear of one getting fined.