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Would 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?
https://apps.fcc.gov/els/GetAtt.html?id=205708&x=
Earlier quoted context omitted.
I can't imagine they'd need the TCP/IP stack. You might do better with something like: SOH EOH STX ETX CRC EOT Then the receiver would send an ACK or NACK. Repeat as necessary.
Would you even acknowledge? The data is worthless after one round-trip, so you wouldn't send it twice. The receiver just needs to make sure that they read information correctly and can deal with losses.
Earlier quoted context omitted.
Seems like it is real: https://www.six-group.com/en/home/media/releases/2018/201805...
This is microwave based. Those lines are well known by now and there are known routes within Europe (most notable Frankfurt London) and the US (NYC Chicago). However, microwave only works over short distances (FRA LON has multiple towers to cover the distance). Crossing the atlantic isn't possible. Shortwave could deliver a similar speedup over long distances. I'm a bit sceptical though. Don't the waves have to bounc…
Getting your data across a long haul undersea fiber requires aggregating it with everyone else's data at a central point before it gets sent out optically. This adds latency.
Even with the propagation variability of the wireless path you might be saving hundreds of nanoseconds.
HFT in My Backyard https://news.ycombinator.com/item?id=8354278 (2014)
"Garden Leave" is a paid non-compete time (often a year) used in the financial industry when someone switched jobs. The prior employer invokes it at their option.
I wasn't aware that "paid non-compete" is a thing, thanks for clarifying it. Next time when I see a non-compete in a contract (which is usual for developers), instead of negotiating it out, I'll try to negotiate something like this. What do these agreements usually look like?
The secret world of microwave networks https://news.ycombinator.com/item?id=12862789 (2016) HFT in My Backyard https://news.ycombinator.com/item?id=8354278 (2014)
Given the limitations of such a medium I wonder if the TCP/IP stack is still viable or another transport protocol is used.
In fact the payload might be empty or mostly empty and data can be encoded in protocol fields (for example encoding symbol names in address fields as the link is otherwise point to point).
Does anybody know what happened to Windy Apple Technologies? They promised the lowest latency microwave connection from NY to Chicago, then promptly disappeared...