Re: PC Navigation Software-Capn
I assume you want to use your Garmin GPS unit to view charts on a laptop (or equivalent computer screen) while under way.
If this is the case, your GPS will act as an attenna for GPS (NMEA) input to your laptop, which should have installed the appropriate navigational software...like the Capn, Nobeltec, Fugawi, Coastal Explorer, etc. Each of these software packages have the necessary capability to configure your software so that your vessel position will be superimposed on the appropriate navigational chart while underway. That configuration is not difficult to accomplish.
There are a few issues here:
one is that the power to your GPS is usually provvided by batteries; as a consequence, the use of your GPS as an attenna for the laptop-based nav software is limited to the battery life of the GPS power;
two, your GPS should have what they call a 'data cable' which allows you to route the NMEA (GPS) data to the appropriate registers on your laptop to be used by the Nav Software. Some data cables come with a 'pigtail' that allows for DC power through a 'cigarette lighter' adapter; some do not come with that 'pigtail'. If you don't have such a data cable, please make sure you get one with that alternate power feature;
three, once you have this working, you should protect the laptop from the 'elements', like saltwater spray. I have an older (and smaller) IBM Thinkpad for use on the bridge protected by a surround bimini. I view the laptop as a 'dispensable' piece of equipment.
If this is what you had in mind, I would be happy to provide you with further assistance. Contact me directly @
polaris6@nc.rr.com.