Originally Posted by MikePalmer
A forum search threw this up---
To solve this problem, I was advised by a UK based expert as follows:
Set the Comm Port to Comm Port 5 in Device Manager,
Leave the Baud rate as it is, (It does not matter)
Under "Tools" in CPN, set the Comm Port to Port 5 and the Baud rate to whatever it was in Device Manager.
Then, take your laptop to some open space BECAUSE, regardless of the data stream reported by other "Find GPS" programs, OpenCPN will ONLY show your position WHEN, and ONLY WHEN, it can receive data from 4 or more satellites.
After re-setting the thing for what must be a hundred times, I took my laptop out to an area where I know my car Sat Nav gets strong signals and Whoopee!!! OpenCPN lit up and followed my boat. Well, actually, it was my car but who cares, It WORKS!!!
------ which seems to be the solution to my problem exactly---- except that I can't actually do any of it!----- starting with "Set the comm Port to Comm Port 5 in Device Manager" !! Can anyone explain how to do that please? and then perhaps I can have a look at the rest of it.
Actually the rest looks quite do-able, even to me.
Mike...in XP,it's like this.
in your dongle and start your gps
.Unfortunately,I'm not familiar with your dongle but I know it's bluetooth.You will have to find out which of the multitude of ports
bluetooth creates is your gps
.It'll be a "serial port" is my guess.But which one?For that,you must look in the software
.Or use a tool like Xport,MiniGPS Lite for PC,Simplegps,to search for the nmea
data stream...Google em.Get em all.Simple gps is very nice and xport CAN CHANGE THE PORT FOR YOU!..if it can find the gps now. The gps will be easier for these to find if the gps has a fix.Now,there's a choice.Would you like to go to OpenCPN and try to set it to find the gps at that port?Try this first
.Even if you have to type in the port number.
Now,specific to your question:
,System,Device Manager,look for "Ports".
Ok,there's a "+".Click it.Your gps is using one of these ports
likely labelled a bluetooth serial
port or similar.YOU MUST ALSO CHECK OTHER DEVICES,like modems,audio devices,even printers and these also have port numbers.This'll help narrow the search if the gps finder didn't work....and also,give you some candidates to shift UP if they are occupying ground floor suites...
Port 5 is not a special port that OpenCPN has affinity for as far as I'm aware but Ports less than "10" are good places for a gps because ...because they just are
If you MUST change the port number,you must first move the present
tenant (somebody useless who doesn't pay rent)to another place .Higher above all others.
To do this.Right click it,choose properties,choose Port settings tab and FINALLY "advanced"....Port Number..see it there?Notice that clicking the scroll tells you what's in use.Pick something that isn't.You might have to reboot(restart) before moving on.
Now,repeat the process of "Port number setting changing your best guess as to the gps'port to this now-vacant port.Be methodical,and write down who you change so you can shift em all back if need be.Don't shift everything.Backtrack try again.Change as few as possible.
And then,of course,try the gps checkers and opencpn set to that port.
I hope this helps.