Garmin GPS 48 - Manual (Page 22)

Position Page (cont)
To reset timer, speed measurement, or odometer:
1. Highlight the user-selectable field, and press
E
.
2. Press
E
to confirm or
Q
to exit.
The trip odometer, trip timer, and average speed
fields are linked. Resetting one of these options in a
user-selectable field will automatically reset the corre-
sponding data in the other. This ensures that informa-
tion shown in these fields reflects your current trip.
Maximum Speed Field
To obtain the most accurate reading of average
speed, keep in mind that due to the sensitivity of the
GPS 48’s antenna, your maximum speed value may
include the effects of rapid movement, such as swinging
your arm while holding the unit.
To reset the maximum speed field:
1. Highlight the ‘MXSPD’ field, and press
E
.
2. Press
E
to confirm the ‘RESET?’ prompt .
Altitude Field
When the GPS 48 is acquiring satellites or navigat-
ing in the 2D mode, the last known altitude is used to
compute your position. In cases where the GPS 48 has
2D coverage, entering your exact altitude will enable the
receiver to determine a more accurate fix.
Note: Altitude can only be entered when the receiv-
er is in the 2D mode.
To enter an altitude:
1. Highlight the ‘ALT’ field, and press
E
.
2. Enter a value, and press
E
.
Note: Use caution when entering a 2D altitude,
entering an incorrect altitude may significantly degrade
position accuracy.
Maximum Speed
& Altitude
Fields
REFERENCE
18
The user selectable fields
on the Position Page give
you a variety of informa-
tion to choose
from.Resetting the trip
odometer will erase the
previous mileage and set
the odometer to 0.
You may enter your exact
altitude to assist the GPS
48 in establishing a more
accurate fix when operat-
ing in 2D mode.
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