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54 XLi IEEE 1588 Clock
997-01510-03, Rev. C, 12/12/2006
SSSSSSSSSSSS SSSSSSSSSS SSSSSSS S SSS S SSSSS S
1
• Display the option bay location of the GPS receiver(s). If multiple GPS receivers are available,
use the UP/DOWN ARROW keys to select a receiver.
• Select the positional coordinate system, Latitude Longitude Altitude (LLA) or XYZ (Earth-
Centered, Earth-Fixed XYZ coordinates).
• If LLA is selected, Altitude Mode shows the elevation in given meters.
Command Line
Use the following format to display the current settings display the current position for the GPS receiver
in LLA coordinates:
F50<S>B<N><SEP>LLA<CR>
XLi responds with the coordinate information in the following format:
F50<S>B<N><SIGN><S><DEG>d<MIN>'<SEC>"<S><SIGN><S><DEG>d<MIN>'<SEC>"<S><ALT><UNITS><CR
><LF>
where:
For example, to display the LLA coordinates of the antenna connected to card #2, enter:
F50 B1 LLA<CR>
F50
= Function 50
<S> = ASCII space character one or more.
B = ASCII letter to denote Option Bay number follows
<N> = Option Bay Number, 1 through 4.
<SEP> = Separator
LLA = LLA mode
<CR> = carriage return character.
<SIGN> = N or S for latitude; E or W for longitude; – for negative altitude and <S> or + for positive altitude.
<DEG> = two-digit degrees for latitude or three-digit degrees for longitude.
d = ASCII character d
<MIN> = two-digit minutes.
' = ASCII character '
<SEC> = two-digit seconds + 1 digit 10ths of seconds.
" = ASCII character "
<ALT> = altitude in meters
<UNITS> = unit of altitude, “m” for meters
<LF> = line feed character.