cowpowered@lemm.ee to Technology@lemmy.worldEnglish · 1 year agoHigh Frequency Traders want to start using High Frequency radio for financial datawww.radioworld.comexternal-linkmessage-square6fedilinkarrow-up119arrow-down11
arrow-up118arrow-down1external-linkHigh Frequency Traders want to start using High Frequency radio for financial datawww.radioworld.comcowpowered@lemm.ee to Technology@lemmy.worldEnglish · 1 year agomessage-square6fedilink
minus-squarelchapman@programming.devlinkfedilinkEnglisharrow-up3·1 year ago1800 symbols per second is the benchmark for shortwave data transmission. https://en.m.wikipedia.org/wiki/PACTOR Not sure exactly how useful that would be, but the latency is low: 0.01 seconds to cross the width of the USA. A round trip packet from NY to SF takes 0.05 seconds, a fifth of the speed. Fibre is quick, but not as quick as radio. There’s about 1400 bytes usable in a TCP packet, versus the 1800 symbols per second over shortwave. Lots of TCP packets can be exchanged per second. I don’t see the value proposition.
1800 symbols per second is the benchmark for shortwave data transmission.
https://en.m.wikipedia.org/wiki/PACTOR
Not sure exactly how useful that would be, but the latency is low: 0.01 seconds to cross the width of the USA.
A round trip packet from NY to SF takes 0.05 seconds, a fifth of the speed. Fibre is quick, but not as quick as radio.
There’s about 1400 bytes usable in a TCP packet, versus the 1800 symbols per second over shortwave. Lots of TCP packets can be exchanged per second.
I don’t see the value proposition.