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102 997-01530-01, Rev. C-25, Jan 2008
SSSSSSSSSSSS SSSS SSSSSS SSSSSSS S SSS SSSSSSS
1
For example, enter:
F113<CR>
The XL-GPS displays the current configuration (example):
F113 DISABLE<CR><LF>
Or
F113 FREQ MEAS 1MHZ 50 000001<CR><LF>
To set the J3 Input Configuration, enter a character string using the same formats as the preceding
XL-GPS responses. Only valid values are accepted.
To disable F113, enter:
F113 DISABLE<CR>
Or, to enable Freq Meas of a 1 MHz input with a 50 Ω input impedance every 1 seconds, enter:
F113 FREQ MEAS 1MHZ 50 1<CR>
To all three of the above examples, XL-GPS responds:
OK<CR><LF>
If enabling Freq Meas, display the Freq Meas measurements using the following format:
F113<S>SHOW<CR>
XL-GPS responds using the following format:
Interval<S>is<S><INT><S>seconds<CR><LF>
+#.######e-##<CR><LF>
FREQ MEAS = ASCII character string "FREQ MEAS" to set J3 to make frequency measurements
<S> = ASCII space character one or more.
<FREQ> = FREQ MEAS Input Frequency: 1MHZ, 5MHZ, 10MHZ
<IMP> = Input Impedance: 1K or 50
<INT> = Frequency Measurement Interval. This is the gate time of the measurement. Range: [000001,
999999] in seconds.
<CR><LF> = line terminator, either a carriage return and line feed for output strings or a carriage return only for
input strings.
F = ASCII character F.