(page number) & Topic
Page 48: Goto
There are also ways to show how far you have deviated from course. The eTrex does not have any of those screens, but if you travel in a location where you have complete freedom of movement (air or water) or you need to stay on a direct course, you may want to understand Cross Track Error (XTE) and Course Deviation Indicators (CDI).
GPS Made Easy explains the power of the Goto function.
Page 50: Compass
Page 51: Bearing
Page 55-60:
Navigational Stats
Distance,
Speed: ave, max
Desired track
CMG, Bearing
ETE, ETA
CTS, TRN
Cross Track Error (XTE) and Course Deviation Indicators (CDI) are also described in this section.
Navigational statistics are displayed at the bottom of the Pointer Page screen on the eTrex receiver. The screens below show the navigational information provided by the eTrex receiver.
The destination in the screens below is the Garmin waypoint programmed in all receivers. The origin is Phoenix, AZ. The Garmin waypoint was selected as the Goto destination.
In the screens below, note that the miles to the destination are decreasing, but the Time To Go (the amount of time required to arrive at the destination) increases. The time increases because the direction of travel is not directly to the destination. Notice the large arrow in each screen points to the left. The heading (direction of travel) is 82 degrees yet the bearing (direction to destination) is 51 degrees. If the current heading is maintained, the time to the destination will increase until the receiver determines that the traveler will never reach the destination.
1012 Miles to the waypoint named "Garmin".
59 hours, 59 minutes to arrival at destination.
Current location in latitude/longitude coordinates. The coordinate can be shown in UTM, MGRS, British Grid and several other grids.
GPS Made Easy:
Page 37 - 39: Coordinate grids.
Chapter 5: UTM coordinates.
Chapter 8: Latitude/Longitude.
1011 Miles to the waypoint named "Garmin".
62 hours, 30 minutes to arrival at destination.
Bearing = 51 degrees. The bearing is the compass direction from current position to the destination. The arrow on the screen is point to the left, which means the traveler is not going directly towards the destination. To go to the destinations, the traveler needs to veer to the left.
GPS Made Easy:
Page 51: Bearing (Azimuth).
Page 57: Direction Indicators.
Page 62: Steering Screens.
1011 Miles to the waypoint named "Garmin".
62 hours, 30 minutes to arrival at destination.
Elevation = 1267 feet. The units for elevation can also be set to meters.
GPS Made Easy:
Page 29: Accuracy.
Page 33: Altitude Accuracy.
Page 34: Accuracy in the 2D Mode.
1009 Miles to the waypoint named "Garmin".
65 hours, 58 minutes to arrival at destination.
Sunrise occurs at 7:03 am at the destination on the date the receiver was being used.
GPS Made Easy:
Page 69: Solar and Lunar Calculations.
1008 Miles to the waypoint named "Garmin".
66 hours, 38 minutes to arrival at destination.
Sunset occurs at 7:52 p.m. at the destination on the date the receiver was being used.
GPS Made Easy:
Page 69: Solar and Lunar Calculations.
1008 Miles to the waypoint named "Garmin".
67 hours, 05 minutes to arrival at destination.
The trip has been in progress 6 minutes and 45 seconds since the last time the trip timer was reset.
GPS Made Easy:
Page 61: Timers.
1007 Miles to the waypoint named "Garmin".
67 hours, 28 minutes to arrival at destination.
The trip odometer shows that only 150 feet have been traveled since the odometer was last
reset.
GPS Made Easy:
Page 55: Trip Distance or Odometer.
1006 Miles to the waypoint named "Garmin".
67 hours, 48 minutes to arrival at destination.
The current speed is 20 mph. The speed can also be displayed in kph.
GPS Made Easy:
Page 56-57: Speed. Describes Speed over Ground (SOG) and Velocity Made Good (VMG).
1006 Miles to the waypoint named "Garmin".
67 hours, 08 minutes to arrival at destination.
The average speed, which accounts for all fluctuations and stopping is 0.3 mph.
GPS Made Easy:
Page 56-57: Speed. Describes Average Speed.
1005 Miles to the waypoint named "Garmin".
68 hours, 25 minutes to arrival at destination.
The maximum speed since the maximum speed counter was reset is 2.0 mph.
GPS Made Easy:
Page 56-57: Speed. Describes Maximum Speed.
1004 Miles to the waypoint named "Garmin".
68 hours, 42 minutes to arrival at destination.
The current heading, which means the bearing the traveler is going, is 82 degrees. Since the arrow is pointing to the left, the traveler is not headed directly towards the destination.
GPS Made Easy:
Page 51: Bearing (Azimuth).
Page 57: Direction Indicators.
Page 62: Steering Screens.