Extending seatalk 1 cable

[Peregrine1983]

Hey all,

I have an old seatalk 1 cable that goes from my Raymarine autopilot to the control head. The cable is too short for the new position of the control unit. Can I splice into this cable? If so, what type of wire do I need to extend it? Thank you in advance for any tips!

[smac999]

Yes. Any 3 core

[transmitterdan]

Any 3 core that is not smaller than the original. Maybe one size larger if extending more than a few feet.

[SecondBase]

And if you are going larger trim the current wire down to pigtail length at both ends in order to use more of the upgraded wire.

[Peregrine1983]

Great. Thank you! Got some Ancor 14ga triplex. Going to give that a try.

[jamhass]

Best to use a shielded cable. On SeaTalk, the common line is the ribbon conductor which is also a shield. You can use 2 conductor with shield and use the shield as common, or 3+shield, but the shield needs to be connected to common.