So intriguing. Bringing out the old tech for new use cases
I wouldn’t call it old tech. It’s just another portion of the spectrum. There is some pretty advanced stuff going on with HF.
Shortwave Trading: The West Chicago Tower Mystery
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Re: Shortwave Trading: The West Chicago Tower Mystery
#22Would love to know what licensing regime / category they are using for this. It definitely isn't ham, because that's non-commercial only. The fact that log period antennas are in use is interesting too - low gain but directional and useful across a broad frequency range - maybe some spread spectrum technology?
Probably licensed on several bands, as propagation conditions change quickly. They’d need to hop around, if not simultaneously transmitting on multiple bands.
Re: Shortwave Trading: The West Chicago Tower Mystery
#23Weirdest thing I've read in a long while. The Author's comments refer to an internet forum thread[0] in German which discusses a German news article from this April.[1]However, it turns out this article is an April Fools text. Just digging deeper into the whole blog you can find something that can only be described as a fanfiction representation of "Flashboys", but in the context of this "Shortwave trading".[2] Is th…
Seems like it is real:
https://www.six-group.com/en/home/media/releases/2018/201805...
Re: Shortwave Trading: The West Chicago Tower Mystery
#24Given the limitations of such a medium I wonder if the TCP/IP stack is still viable or another transport protocol is used.
I can't imagine they'd need the TCP/IP stack. You might do better with something like:
SOHEOH STXETX CRC EOT
Then the receiver would send an ACK or NACK.
Repeat as necessary.
Re: Shortwave Trading: The West Chicago Tower Mystery
#25Would love to know what licensing regime / category they are using for this. It definitely isn't ham, because that's non-commercial only. The fact that log period antennas are in use is interesting too - low gain but directional and useful across a broad frequency range - maybe some spread spectrum technology?
Re: Shortwave Trading: The West Chicago Tower Mystery
#26Weirdest thing I've read in a long while. The Author's comments refer to an internet forum thread[0] in German which discusses a German news article from this April.[1]However, it turns out this article is an April Fools text. Just digging deeper into the whole blog you can find something that can only be described as a fanfiction representation of "Flashboys", but in the context of this "Shortwave trading".[2] Is th…
The linked article [1] appears to be built around a word-play, where "Shortwave"-trading and "High frequency"-trading are ambiguously used as "Hochfrequenz"handel
Re: Shortwave Trading: The West Chicago Tower Mystery
#27If this article was an intro to a fiction novel, I’d be interested in reading the entire thing. Some sort of HFT heist with a good mix of factual engineering and finance.
Re: Shortwave Trading: The West Chicago Tower Mystery
#28Weirdest thing I've read in a long while. The Author's comments refer to an internet forum thread[0] in German which discusses a German news article from this April.[1]However, it turns out this article is an April Fools text. Just digging deeper into the whole blog you can find something that can only be described as a fanfiction representation of "Flashboys", but in the context of this "Shortwave trading".[2] Is th…
German speaker here. The sentiment on heise.de comments is that this was an April’s Fools joke
Re: Shortwave Trading: The West Chicago Tower Mystery
#29They are probably also monitoring HF propagation paths, as there can be ground wave and sky wave, with varying dispersion. The X300 has some latency too. I’ll be they are doing the majority of processing directly on the FPGA to avoid SDR latency. The X310 has a larger FPGA, and would be tell-tale. Bring on the comms with neutrinos or entangled particles.
Up next: Tachyon trading
Re: Shortwave Trading: The West Chicago Tower Mystery
#30All along everyone thought that numbers stations were how governments send messages to their spooks, in reality they were just poor bastards holed up in tiny shacks manually reading the tape for the S&P e-mini...