Furuno Inmarsat FleetBroadband FELCOM251 Installation Manual page 51

3. CONNECTING POWER
Example:
Ship supply voltage: 12 V DC
Ship source impedance (measured): 50 m
Extension cable type: 4 mm
Max. cable extension = 0.5 x
In this case, the power cable can be extended with up to 3.12 m.
If you need a longer cable, you can double the maximum allowed length by con-
necting two cables instead of one, or you can use a cable with a larger diameter.
3-4
2
(AWG 11)
85 mΩ - (50 mΩ + 10 mΩ)
4 mΩ/m
= 3.12 m