Garmin GPS 48 Owner's Manual - Page 55

Speed Filter

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Magnetic Heading Reference (cont) To select a heading reference: 1. Highlight the 'HEADING' field, and press E. 2. Select the desired heading preference, and press E. To enter a user-defined magnetic heading: . 1. Select 'User Mag' and press E. 2. Enter the degrees and direction of magnetic variation, and press E. To select heading units for display: . 1. Highlight the present unit selection and press E. 2.Select the desired units and press E. Speed Filter The speed filter allows you to determine how the GPS48 responds to changes in track or ground speed. Three settings are available: automatic, on, or off. The 'Auto' setting is the default and will monitor changes in your current track and speed and adjust the receiver's response time up to 255 seconds. Selecting a higher setting may be desirable in slow-speed applications with frequent changes in track. To enter a value for the speed filter: 1. Highlight the 'SPEED FILTER" field and press E. 2. Select the 'ON' option and press E. 3. Highlight the "speed value" field and press E. 4. Press the E key to confirm the selection. REFERENCE Speed Filter To enter a user-defined magnetic variation, select the 'User Mag' option and enter the desired direction and value. The speed filter smooths the speed reading in rough waters or any environment where there are rapid speed fluctuations. 51

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Magnetic Heading Reference (cont)
To select a heading reference:
1. Highlight the ‘HEADING’ field, and press
E
.
2. Select the desired heading preference, and press
E
.
To enter a user-defined magnetic heading:
.
1. Select ‘User Mag’ and press
E
.
2. Enter the degrees and direction of magnetic variation,
and press
E
.
To select heading units for display:
.
1. Highlight the present unit selection and press
E
.
2.Select the desired units and press
E
.
Speed Filter
The speed filter allows you to determine how the
GPS48 responds to changes in track or ground speed.
Three settings are available: automatic, on, or off.
The
‘Auto’ setting is the default and will monitor changes in
your current track and speed and adjust the receiver’s
response time up to 255 seconds.
Selecting a higher
setting may be desirable in slow–speed applications
with frequent changes in track.
To enter a value for the speed filter:
1. Highlight the ‘SPEED FILTER” field and press
E
.
2. Select the ‘ON’ option and press
E
.
3. Highlight the “speed value” field and press
E
.
4. Press the
E
key to confirm the selection.
51
To enter a user-defined
magnetic variation, select
the ‘User Mag’ option and
enter the desired direction
and value.
REFERENCE
Speed Filter
The speed filter smooths
the speed reading in rough
waters or any environ-
ment where there are
rapid speed fluctuations.