2 rs-232 outputs – Honeywell BEDIX/KING GPS RNAV User Manual

Page 83

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BENDIX/KING

KLN 90B

Rev 5, April/2003

10521I05.TDC

Page A-5

1.2 RS-232 OUTPUTS

1.2.1

NAVIGATION AND SELF-TEST DATA

RS-232 data will be output with the following format:

<STX><id><dddd><it><id><dddd><it>...<id><dddd><it><ETX>

<STX>

ASCII start of text character

<id>

item designator

<dddd>

item data

<it>

item terminator: <CR>

<ETX>

ASCII end of text character

item

field

desg

item format

width item description

----

-----------

-----

----------------

1234567890

A

s dd mmhh

9

present latitude
s=sign: N for north, S for south
dd=degrees
mm=minutes
hh=hundredths of minutes

B

s ddd mmhh10

present longitude

s=sign: E for east, W for west
ddd=degrees
mm=minutes
hh=hundredths of minutes

C

ddd

3

track (magnetic) -- dashed if groundspeed < 2KT
ddd=degrees

D

ddd

3

ground speed
ddd=knots

E

ddddd

5

distance to active waypoint
ddddd=nm * 10

G

sdddd

5

cross track error
s=sign: R for aircraft position right of course,
L for aircraft position left of course
dddd=nm * 100

I

dddd

4

desired track (magnetic) * 10
dddd=degrees * 10

K

ddddd

5

active waypoint identifier
ddddd=ASCII active waypoint identifier

L

dddd

4

bearing to active waypoint (magnetic)
dddd=degrees * 10

Q

sddd

4

magnetic variation
s=sign: E for east, W for west
ddd=degrees * 10

T

---------

9

this field will always be dashed

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