...
Used the Power Analyzer by Keysight tool, not able to calculate the loop impedance directly, use the voltage drop and current simulated to calculated loop impedance.
...
Pixhawk Wiring
The Pixhawk connector that I find is the 5024430670 Molex Clickmate connector, linked below:
https://www.digikey.ca/en/products/detail/molex/5024430670/2380429
The link below is the pixhawk wiring standard
...
The wiring harness that WARG use is 1:1 harness, as pictured, the red cable indicating pin 1
...
Comparing the cable with the pin placements on my PCB shows that it is correct
...