Maps for older GPS unit
~ Captain Paul's response to: ~ SLAYMASTER ~
First, you will need a transfer program to install the maps on a spare card or via your unit or by using a connection cable. Try Garmin’s MapSource, Trip and Waypoint Manager and the free download BASECAMP and or MapInstall. They still offer the BASECAMP and MapInstall on their web site. The others may be hard to find.
Secondly, the older discontinued GPS models cannot read new map data and the newer type maps can not work in these units.
If your GPS can accommodate the older MapSource files, you may be able to find something that will work from a mapping web site called GPS FILE DEPOT. (http://www.gpsfiledepot.com/maps/view/144/) Most of the Depot maps are free downloads, only asking for a donation.
Go to the web site and search for maps in the US and then NJ and NY. Try the TOPO maps for these states. Yes, I know, you are in a boat, but many of the Topos cover near shore features. The Topo version may give you what you need, although they don’t give water depths or marine NavAids as a NOAA Marine Chart will do. Depending on the draft and operating range of your boat you may be able to use the Topo version of the maps.
In trying download the Garmin BaseCamp from their web site, then the Depot files. The map files should show up in the BaseCamp program in the My maps window at the top of the screen.
Another way would be for you to purchase a Marine mapping program such as Richards MapTech Navigator and Navigator Pro. (http://www.richardsonscharts.com/product.php?cat_id=22)and installing it in laptop PC and use a connecting cable to your GPS unit. In doing so, your position will show up on the displayed charts, topos and aerial views of the program. In fact both MapTech programs have ALL NOAA Marine Charts from Canada to Texas.
I wish I had a specific answer to your dilemma, but I don’t. Sooner or later, hopeful later, you will be forced to purchase a new GPS unit. Yes, you will have to bite the bullet, but when doing so, check out the unit’s mapping types and date of issue. Most newer units can accommodate even aerial photo maps. Regardless, you should get one of the aforementioned backup programs and save your existing waypoints and routes which will allow you to back up all of the data.
Hope this helps.