Garmin GPS 40 - Manual (Page 23)

The GPS 40 Position Page displays your current
position’s latitude, longitude, altitude and time
numerically. It also displays your track (compass
direction) and speed whenever you’re moving.
The Position Page also lets you enter a position’s
latitude and longitude manually. During satellite
acquisition, the position displayed is the last com-
puted position stored in memory. If the receiver’s
position has moved several hundred miles with the
power off or memory has been lost due to battery
f a i l u re, the unit may take 7 1/2 to 15 minutes to
a c q u i re satellite data.
To speed up the acquisition process, you can enter
a m o re accurate initial position. Most maps and chart s
show the latitude and longitude of major cities.
1. Press the D key until the position field is
highlighted.
2. Press E to begin entry of your position.
3 Use the L and R arrow keys to select the
character position you want to edit.
4. Use the U and D arrow keys to select the
value for each field. All fields must have a value.
5. Press the E key to confirm your changes.
When the GPS 40 is acquiring satellites or navi-
gating in the 2D mode, the last known altitude
will be used to compute your position. If the alti-
tude shown is off by several hundred feet, enter a
corrected altitude manually for greater accuracy.
1. Press the D key until the altitude field is
highlighted.
2. Press E to begin entry of your altitude.
3. Use the U and D keys to enter a value in
each character field, using the L and R keys
to move to the next character position.
4. Press the E key to confirm the altitude.
17
The unit of measure for
speed, position and alti-
tude are all user-selec-
table. To change the
default settings for these
fields, refer to the naviga-
tion setup instructions on
page 41.
Reference
Position Page
Options
40 rev B 8/6/98 1:45 PM Page 17