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36 997-01530-01, Rev. C-25, Jan 2008
SSSSSSSSSSSS SSSS SSSSSS SSSSSSS S SSS SSSSSSS
1
Note: Local time is commonly displayed in both 12 and 24 formats. The specifications for Standard,
UTC, and GPS call for using the 24-hour format. Applying the 12-hour format to any time type
leads to ambiguous time notation. For example, if the 12-hour format is applied to UTC, the clock
will display “249:10:21:34” once in the morning, and once at night.
The factory settings for F2 are 24-hour format for the display and 24-hour format for IRIG (F90)
Command Line
To display the current hour format, send:
F2<CR>
XL-GPS responds:
F2<S>D<HH><SEP>I<HH><CR><LF>
where:
For example, to display the current hour format, send:
F2<CR>
XL-GPS responds:
F2 D24 I24<CR><LF>
To set the hour format, send:
F2 D12 I24<CR>
XL-GPS responds:
OK<CR><LF>
F = ASCII character F.
02 = Function number.
<S> = ASCII space character (one or more).
D = ASCII character for Display format.
<HH> = 12 or 24.
I = ASCII character for IRIG format
<CR> = Carriage return character.
<LF> = Line feed character.