Fathom-X Tether Interface with 400m Tether

[surajbilung]

we have a 400m CAT6 cable. We were trying to run our ROV via this. We have issue in connecting the ROV via this 400m tether even after using the Fathom-X Tether Interface with 2 twisted pair wires . However, everything is fine when we use 150m CAT6 tether.
I assume that the length is an issue even if its mentioned in the website that the Fathom-X Tether Interface supports length more than 600m.
Could somebody recommend, how should i further proceed to improve my situation and on what’s wrong on my side here ?

[EliotBR (Eliot)]

Hi @surajbilung,

@surajbilung

I assume that the length is an issue even if its mentioned in the website that the Fathom-X Tether Interface supports length more than 600m.

Our Fathom-X product page specifies that while the manufacturer of the LX200V20 HomePlug modules has a published maximum connection length of 2000m, we have only tested up to 300m tethers with a usable connection.

From our Tether product page:

@Fathom ROV Tether

Please note! When used with the Fathom-X Tether Interface Board Set, the maximum recommended length and the longest distance we have observed communication is 300m for the standard Fathom ROV Tether and 200m for the Fathom Slim ROV Tether.

Accordingly it may be the case that tethers longer than 300m do not work well with the Fathom-X boards.

@surajbilung

Could somebody recommend, how should i further proceed to improve my situation and on what’s wrong on my side here ?

Assuming a 600m tether is required, you may wish to try a more advanced HomePlug module, or alternatively it could be worth trying a fibre optic tether.