COBHAM SAILOR 6110 mini-C GMDSS, Руководство по установке

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Chapter 3: Connect the system
34 Connect power
3.4.4 Measure the ship source impedance
3.4.4.1 Without supplied cable
If you want to use another cable
instead of the supplied cable
, measure
the source impedance without the cable as follows:
1. Measure the voltage without load (R.var disconnected).
2. Set the current to e.g. 1 A by adjusting R.var.
3. Measure the corresponding voltage change.
4. Calculate the source impedance from the voltage and the current.
Example:
1 A and 100 mV.
Source impedance: 100 mV/1 Amp = 100 mOhm.
You can use this source impedance to calculate the maximum length of the
cable between the power outlet and the SAILOR 3027.
Power outlet
for terminal