Lowrance 520

You dont need to hook up the NMEA wire…Just the Wire for the GPS Puck and the Head wire..

Overlay data should offer you, at least, the time and voltage along with depth and water temp.

Here is the link to the manual if you dont have it. You can save the file to your computer if you put your mouse at the bottom middle of the page. Hope this helps. http://www.lowrance.com/u…520C_0151-461_120706.pdfEdLast edited by conan1.basscatowners on May 14th, 2012, 10:44 pm, edited 1 time in total.”Political Correctness is a doctrine fostered by a delusional illogical minority, and rapidly promoted by an unscrupulous main- stream media which holds forth the proposition that it is entirely possible to pick up a turd by the clean end.”

Click conan1s link and scroll down to page 79. There are step by step instructions there.

See if this helps.To overlay information on your screen:1. Press MENU|? to OVERLAY DATA|ENT.2. If you currently have any overlay data on your screen, it will belisted here. Select (ENTER TO ADD) and press ENT. The data viewer showsinformation categories with “+” or “–” symbols next to each categoryname. A category with a “+” next to it is expandable, meaning its contentsare hidden.Selecting the category name and pressing ENT will show the categoryscontents, so you can choose items within it. An expanded category (onewith a “–” next to its name) can be collapsed to hide its contents. Justselect the category name and press ENT.3. Expand any categories that might contain data you want to display.Then press ? or ? to select a data option.4. With the data option highlighted, press ENT to check it (turn on) anduncheck it (turn off). As you turn it on, the data will appear on top ofthe screen. Every Page display has a maximum number of items youcan show using the Overlay Data command.5. After the desired changes are made, press EXIT|EXIT to return to thepage display.To remove overlaid data:1. While on the Page that shows the item or items you want to remove,press MENU|? to OVERLAY DATA|ENT.2. Youll see a list of the overlay data currently displayed. Select theitem you want to remove from your display and press ENT|ENT to removethe data. To remove another item, select the item and pressENT|ENT.3. When you have finished removing all the items you want from thescreen, press EXIT to return to the page display.NOTEYou can also remove data directly from the Data Viewer menu by uncheckingthe data option you would like to remove.To move overlaid data:You may find it useful to rearrange data that is floating in your displaywindow.1. From one of the Map Pages, press MENU|? to OVERLAY DATA|ENT.2. Youll see a list of the overlay data currently displayed. Select theitem you want to move and press ENT|? to MOVE|ENT.3. The data begins to flash on your screen. Use any combination of ?,?, ? and ? to move the data to a new location on the screen.4. When satisfied, press EXIT|EXIT.NOTE:The Customize command and the Overlay Data command both usethe same information categories. The difference between the twocommands is that Customize changes only the data boxes on aTo move overlaid data:You may find it useful to rearrange data that is floating in your displaywindow.1. From one of the Map Pages, press MENU|? to OVERLAY DATA|ENT.2. Youll see a list of the overlay data currently displayed. Select theitem you want to move and press ENT|? to MOVE|ENT.3. The data begins to flash on your screen. Use any combination of ?,?, ? and ? to move the data to a new location on the screen.4. When satisfied, press EXIT|EXIT.NOTE:The Customize command and the Overlay Data command both usethe same information categories. The difference between the twocommands is that Customize changes only the data boxes on aTo move overlaid data:You may find it useful to rearrange data that is floating in your displaywindow.1. From one of the Map Pages, press MENU|? to OVERLAY DATA|ENT.2. Youll see a list of the overlay data currently displayed. Select theitem you want to move and press ENT|? to MOVE|ENT.3. The data begins to flash on your screen. Use any combination of ?,?, ? and ? to move the data to a new location on the screen.4. When satisfied, press EXIT|EXIT.NOTE:The Customize command and the Overlay Data command both usethe same information categories. The difference between the twocommands is that Customize changes only the data boxes on a screen, and Overlay Data changes only the information floating onthe screen without a box. See Customize Page Displays, on page 90,for information on customizing data boxes.To change displayed data font size:1. From the Map or Sonar page, press MENU|? to OVERLAY DATA|ENT.2. Press ? or ? to select Data Type, then use ? ? to scroll through thefive overlay options: Off, Small, Medium, Large and Enormous.3. Select the desired setting. The selected data type will be displayed inthe new size. To change the font size for another Data Type, repeatSteps 2 and 3. Press EXIT to return to the sonar display.NOTE:Some data types can be displayed in only one font size. If that is thecase, the Data Size box will not be displayed for that data type.

No problem at all Robin.