Symmetricom XL-GPS, User Manual

Page: 155 / 239

F113 – J3 Input (Freq Meas)
XL-GPS responds using the following format:
Interval<S>is<S><INT><S>seconds<CR><LF>
+#.######e-##<CR><LF>
Where
Interval is
= ASCII character string “Interval is”
<S> = ASCII space character or separator.
<INT>
= Frequency Measurement Interval
seconds
= ASCII character string “seconds”
+ = ASCII plus “
+
” or minus “
-
” character
#
= ASCII integer from 0 to 9
e-
= ASCII characters “
e-
”
<CR><LF>
=
line terminator, either a carriage return and line feed for output strings or a carriage return
only for input strings
For example, enter:
F113 SHOW<CR>
XL-GPS responds (example):
Interval is 1 seconds<CR><LF>
+9.600000e-10<CR><LF>
+1.080000e-09<CR><LF>
+1.560000e-09<CR><LF>
To stop Freq Meas, enter Ctrl+C on the command line.
Note: Freq Meas remains active while the function is displayed on the front panel or com-
mand line. Changing the function on the front panel or command line terminates Freq
Meas.
098-00116-000 Rev. A ............................... Page 141 of 221