Leica GR30 - Special Format Fields

246
--ccc
Address
•
-- = alphanumeric characters identifying
the talker
Options:
GP = GPS only
GL = GLONASS only
GN = Global Navigation Satellite System
• ccc = alphanumeric characters
identifying the data type and string
format of the successive fields. This is
usually the name of the message.
GPGGA
Special format fields
Symbol
Field
Description
Example
A
Status
•
A = Yes, Data Valid, Warning Flag Clear
• V = No, Data Invalid, Warning Flag Set
V
llll.ll
Latitude
•
Degreesminutes.decimal
• Two fixed digits of degrees, two fixed
digits of minutes and a variable number
of digits for decimal fraction of minutes.
• Leading zeros are always included for
degrees and minutes to maintain fixed
length.
4724.538950
yyyyy.yy
Longitude
•
Degreesminutes.decimal
• Three fixed digits of degrees, two fixed
digits of minutes and a variable number
of digits for decimal fraction of minutes.
• Leading zeros are always included for
degrees and minutes to maintain fixed
length.
00937.046785
eeeeee.eee
Grid Easting
At the most six fixed digits for metres and three
fixed digits for decimal fractions of metres.
195233.507
nnnnnn.nnn
Grid
Northing
At the most six fixed digits for metres and three
fixed digits for decimal fractions of metres.
127223.793
hhmmss.ss
Time
•
hoursminutesseconds.decimal
• Two fixed digits of hours, two fixed digits
of minutes, two fixed digits of seconds
and a variable number of digits for
decimal fraction of seconds.
• Leading zeros are always included for
hours, minutes and seconds to maintain
fixed length.
115744.00
mmddyy
Date
•
Monthdayyear - two fixed digits of month,
two fixed digits of day, two fixed digits of
year.
• Leading zeros always included for
month, day and year to maintain fixed
length.
093003
No specific
symbol
Defined field
•
Some fields are specified to contain
predefined constants, most often alpha
characters.
M