
Originally Posted by
rnvinc
Here is info Wayne P. posted in another forum ... :
Very easy with Navionics, just go to their website, click on Web App and you can view the current maps for Nautical Charts (Navionics data) and Sonar Charts (user generated data). That is updated daily and is what you would get when purchasing a Navionics card and updating it.
All Navionics products include a year of Freshest Data Updates.
For Navionics, the best card for the Helix is Navionics+. All three ways to get those maps will give you both Nautical Charts and Sonar Charts.
The coverage is for inland lakes and the Gold coverage (coastal and major rivers).
The original Navionics+ card is 2GB and has no maps. You choose what locations to download to the map card from anywhere in the US and Canada. It is discontinued but some retailers still have copies. MSRP $179
The current Navionics+ is Preloaded 16 GB with all the maps for the US and Canada including the waters covered by the Gold version. MSRP $199
If you already own a map card by most any company, there is the Navionics Update card which is 2GB and has no maps. To use it, you active it with your card so it becomes the Navionics+ version. MSRP $99
I'll add just a little ... The Freshest Data Updates (included with the card purchase) allows you to update your card as many times as you want for the 1st year ... After that your card stays at the detail level of your last active update (unless you elect to purchase another year of Freshest Data Updates for $99) ...
Rickie