Serial Interface Specifications
Apollo GX50/60/65 Installation Manual
59
B
INARY
N
EAREST
L
IST
D
ATA
(
WHEN
E
XTENDED
D
ATA IS
E
NABLED
O
NLY
)
The nearest waypoint lists are sent one waypoint per data transmission set. The lists are
sent in the following order:
•
LFAC
•
VOR
•
NDB
•
INT
•
User
There is a maximum of twenty waypoints per type. The waypoints are a maximum of 600
nm from the current position. The waypoints are order by distance from current position
nearest to farthest. The maximum time to send all lists is 100 seconds. Each list is updated
just prior to the first waypoint in the list being sent. If a list is empty a shorter record will
be sent with the List Item Number set to 0xFF.
Table 8 Nearest Waypoint List Data
Byte Format
Description
1 Z
‘Z’
Item Designator
2 sddddddd
List Item Number:
Packed, unsigned binary values
s = 1 End of list, 0 all other
ddddddd = 1 – 20 list waypoint index
sddddddd = 0xFF List Type is EMPTY
(BYTE
4
terminate Item)
3 t
Waypoint Type
:
t = {a (airport) || v (VOR) || n (NDB) || i (INT) || u (USER)}
4 Cr
‘\r’
Item Terminator
<0x0d>
(ONLY IF BYTE 2 = OxFF)
4-8 ddddd
ASCII Waypoint Identifier
9
10
11
sddddddd
xxmmmmmm
xhhhhhhh
Latitude of waypoint.
Packed, unsigned binary values for degrees,
minutes and hundredths of minutes.
s = 0 North latitude, 1 South latitude
x = undefined
ddddddd = Latitude degrees
mmmmmm = Latitude minutes
hhhhhhh = Latitude hundredths of minutes
12 sxxxxxxx
Longitude of waypoint.
Packed, unsigned binary values for degrees,
Summary of Contents for APOLLO GX60
Page 4: ...NOTES ...
Page 8: ...Table of Contents iv Apollo GX50 60 65 Installation Manual NOTES ...
Page 30: ...Installation 22 Apollo GX50 60 65 Installation Manual Figure 12 RS 232 Serial Connections ...
Page 31: ...Installation Apollo GX50 60 65 Installation Manual 23 Figure 13 GX60 65 Comm Wiring Diagram ...
Page 40: ...Installation 32 Apollo GX50 60 65 Installation Manual NOTES ...
Page 50: ...Limitations 42 Apollo GX50 60 65 Installation Manual NOTES ...
Page 54: ...Periodic Maintenance 46 Apollo GX50 60 65 Installation Manual NOTES ...
Page 82: ...Serial Interface Specifications 74 Apollo GX50 60 65 Installation Manual NOTES ...
Page 84: ...Full Stack Drawing 76 Apollo GX50 60 65 Installation Manual ...
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