This is from the original TZT2 brochure, I am having trouble finding information about the WiFi capabilities of the newer TZT3 units. Does the TZT3 offer more?
Get Connected With Our Wireless LAN Interface
Marine Weather Forecast
The weather tool is completely free and easy to use, giving you unlimited access to weather forecasts worldwide 24 hours a day. Select geographic coverage, data type, period of time, and then choose how to receive the file. NavNet TZtouch provides up to 16 days of weather forecasting.
Lee