I have just installed an AIS
, wired the GPS
to it and plugged it into the USB. I am finding the wiring
diagram a little confusing, I had thought it was going to output a GPS
signal via the USB but it doesn't.
I am getting data to my laptop
from the AIS
. I have changed the port settings.
So, what I want to know is;
Does the AIS need the GPS signal? Are the CPA calculations done in the AIS or OpenCPN
And in the wiring
diagram there are 2 wires TXP and TXN that 'transmit AIS and GPS Data'. I presume if I was somehow to connect those to my laptop
then the GPS data would be available via OpenCPN
. But how do I connect 2 wires to my laptop? I guess I cant just twist them onto a chopped up USB cable as there are no drivers etc.......