Vic,
I pulled up the
Garmin 440s Manual from their website. Check out these tidbits where I highlighted in blue from Page 10....
- Fuel—turn the Fuel Rate, Remaining Fuel, Range, and Fuel Economy data bar on or off.
- Sailing—turn the Water Speed, Wind Speed, Wind Angle, and Wind Velocity Made Good (VMG) data bar on or off. Select Wind to toggle between True and Apparent wind speed and wind angle.
- XM Audio—displays an XM audio bar at the bottom of the screen if XM audio is available (page 68).
- Compass Tape—displayed at the top of the screen to provide a graphical representation of heading.
Understanding How Wind VMG and Waypoint VMG Appear in the Data Bars
The chartplotter automatically switches between displaying Wind Velocity Made Good (VMG) and Waypoint VMG in the data bars.
Waypoint VMG appears under these conditions:- The Route Leg data bar displays Waypoint VMG when you are navigating a route or an automatic guidance line.
- The Sailing data bar displays Waypoint VMG when you are
navigating a route or an automatic guidance line and you turn off the Route Leg data bar.
Wind VMG appears under these conditions:- The Sailing data bar displays Wind VMG when you are not navigating a route or an automatic guidance line.
- The Sailing data bar displays Wind VMG when the Route Leg data bar is on.
My take on these directions is:
1. Try setting the 440 to navigate a route or guidance line and configure the display to show the "Route Leg Data Bar" from the Navigation Chart Menu. Waypoint VMG should be shown.
2. Same as #1, now shift to the "Sailing Data Bar" and you should also see Waypoint VMG. It appears that there is a way to configure data displayed the sailing data bar, but without having the device in hand, I'm not sure how.
3. Enable both the Route Leg Data Bar and Sailing Data Bar at the same time when navigating a route. See if the VMG values are different between the two bars. If they are the the same, they both should be VMG to WP. If they are different, the VMG to WP should be correct on the Route Leg Data Bar, and bogus on the sailing data bar, since you have no wind input.
4. The only way the 440 will display VMG is if you have it networked with a wind sensor (e.g. via the NMEA 0183 interface). Since I know you don't, make sure that you have pulled up the VMG to waypoint, not VMG (e.g. test in #3 above).