Furuno GP-30/35 User Manual
Page 39
7-8
Waypoint data format
1
2
3
4
5
6
7
8
9
10
11
12
PFEC, GPwpl, llll.lll, a, yyyyy.yyy, a, c----c, c, c----c, a, hhmmss, xx, xx, xxxx
Figure 7-22 Waypoint data format
1:
Waypoint latitude
2:
N/S
3:
Waypoint longitude
4:
E/W
5:
Waypoint name (Number of characters is fixed to 6 and space code is placed when the
number of characters are less than 6.)
6:
Waypoint color (This field is always kept NULL.)
7:
Waypoint comment (2 byte for mark code + 16 characters of comment.)
1st byte of mark code: Fixed to '@'.
2nd byte of mark code: Internal mark code + 'a' (0 x 61). See Note 1.
Number of characters for comment is less than 16 (variable length). See Note 2.
8:
Flag making waypoint. Always set to “A”.
“A”: Displayed
“V”: Not displayed
9:
UTC (Always NULL)
10:
Day (Always NULL)
11:
Month (Always NULL)
12:
Year (Always NULL)
Note 1: Internal mark code is 0 x 10 through 0 x 18. 0 x 71 through 0 x 79 are always placed
at 2nd byte of mark code.
Note 2: Following characters can be used for comments:
_ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789&()+-/=?}
0x10: 0x11: 0x12: 0x13: 0x14:
0x15: 0x16: 0x17: 0x18:
(q)
(r)
(s)
(t)
(u)
(v)
(w)
(x)
(y)
Figure 7-23 Characters available for comments