We are currently working on a custom project, and are considering using the Fathom-X as an alternative to fibre optics. Does anyone have any experience using these boards on longer tethers? For our project, we need a custom tether 800 meters long, with both 400 VDC supply and communication (twisted …

I’m using Fathom-X for communication on a pipe rover. It’s works (more than 10 mbit/s, no precise tests done) over 750m on a cheap AWG24 shielded twisted pair(not working with the same cable over 800m). AWG22 shielded twisted pair should do the job for the communication part.

Fathom X over long tether

Blue Robotics Products Tether Interfaces

jamesb (James) November 19, 2020, 11:25pm 4

You can also consider the WisPLC Pro from Rakwireless. It is effectively a newer/more capable version (LX200V30) of the FXTI (LX200V20).

Some iperf3 results from our tests with BR tethers - so unshielded twisted pairs:

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LX200V30 Power line module

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Fathom X over long tether

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