Symmetricom XL-GPS User Manual

F13 – Time Error
F13 – Time Error
Use function F13 to request the estimated worst-case time error due to oscillator drift during
periods of unlock from a reference source. See “Time and Frequency Accuracy” on page4
for more information on time error for different reference sources. Time error begins to
accumulate when the receiver loses lock to a reference source. The XL-GPS calculates the
worst-case time error based on the stability of system clock’s oscillator type, and the time
elapsed since loss of lock.
Command Line
The Command line interface will report time error when it receives the following string:
F13<CR>
XL-GPS responds:
F13<S><ERROR><CR><LF>
where:
F13
= ASCII string for function F13
<S>
= ASCII space character
<ERROR>
= calculated worst-case error in seconds
<CR>
= carriage return character
<LF>
= line feed
For example, to display the time error, enter:
F13<CR>
XL-GPS responds (example):
F13 TIME ERROR -0.002932863<CR><LF>
098-00116-000 Rev. A............................... Page 67 of 221

Symmetricom XL-GPS Specifications

General

Brand	Symmetricom
Model	XL-GPS
Category	Receiver
Language	English