
Appendices 327
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Log File Name
Log files are named in such a way as to provide for one unique file for each day of each year for each
station. This allows usage of a single file folder location for all stations in a multi-station environment.
Log file names have the form MMDDYYxx.LOG, where:
Station Number (any 2 characters in 0..9, A..Z)
Generic Record Type
All records have a record type value in byte 1 of the record. Bytes 2-67 will vary in format, depending
on the record type. All records terminate with a Carriage Return/Line Feed combination in bytes 68 and
69.
B = Blank Line
C = Commercial
D = Directive
I = ID Record
L = Log Note
P = Program Title
< Format depends on record type >
Carriage Return/Line Feed
Record Type Conventions
All record types defined are presented in tabular form and include the byte positions for each field,
length of each field, a description of the field and possible values for the field. Here are the conventions
used in documenting record types:
All fields in a record are fixed-length. If the field is not completely filled with information, it
must be padded with space characters (Decimal 32, Hex 20) to the full length of the field to
ensure correct byte alignment. Unless otherwise noted, all fields are left-justified.
In the possible values column, text marked in BOLD are acceptable field vales; all other text
is descriptive in nature.
The terms Blanks and Blank are used in the possible values column to identify fields or
reserved areas of the record that are to be populated with the space character (Decimal 32,
Hex 20).
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