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High Frequency Traders want to start using High Frequency radio for financial data
(www.radioworld.com)
this post was submitted on 10 Jul 2023
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Also a licensed ham here (though no real HF experience). @lchapman has a good point about the latency being only a fifth, but HF is pretty low data rate still. The ionosphere is not ideal, so error correction would need to be put in place, further lowering the datarate. The only thing I can think of is that they would do something with more bandwidth maybe? But why? So some fat cat can trade at just slightly faster than the competition? This seems irresponsible.