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Why is the number of characters in the GPX waypoint name limited
to six characters?
Handheld GPS Name Limits
Some handheld GPS devices limit the number of
characters in the waypoint name to six. If the length of the
waypoint name is greater than the number of
allowable characters, the device may
not load the GPX file, truncate the name or disregard the waypoint
entirely. Therefore, TroutStream GPS waypoint names are limited
to six characters.
Most handheld GPS units contain both name and description fields.
The description field can usually hold more characters than
the name field. For cross reference, the long names in the GPX
file match the placemark names in the Google Earth KML file.
The waypoint key included with your GPS Map
contains both the short name of the waypoint and the long
descriptive name. This file is an Adobe Acrobat file (PDF)
that can be printed and taken with you on the water.
Short Name Format
GPX waypoint short names are in the format "CCC###"
where "CCC" is an abbreviation for the river and "###" is a
unique number. For example "MDR001" is the first waypoint in
the Madison River GPS Map GPX file.