Symmetricom XL-GPS User Manual

1

Use function F11 to review or change the format of the time output string used in F8 and F9. The as-
shipped factory setting for F11 format is null, which enables F8’s and F9’s default time output formats. 
The default format for 

 is:

<SOH>DDD:HH:MM:SSQ<CR><LF>

 F8 does not display milliseconds, regardless of the format defined in F11.

The default format for 

 is:

<SOH>DDD:HH:MM:SS.mmmQ<CR><LF>

where:

The time quality character, “Q”, is one of the following characters: 

See 

 and 

When the unit responds to “F11<CR>” with the current format string (as shown in the following example), 
the first character after the “F11” is a blank separator; it is not part of the format string.

<SOH>

=  ASCII Start-of-Heading character.

<CR>

=  ASCII Carriage Return character.

<LF>

=  ASCII Line Feed character.

DDD

= Day-of-year.

HH

= Hours.

MM

= Minutes.

SS

= Seconds.

.

=  ASCII decimal point.

mmm

= Milliseconds.

:

= Colon 

separator.

Q

=  Time quality character table below.

SPACE

=  Time error is less than time quality flag 1’s threshold

.

=  Time error has exceeded time quality flag 1’s threshold

*

=  Time error has exceeded time quality flag 2’s threshold

#

=  Time error has exceeded time quality flag 3’s threshold

?

=  Time error has exceeded time quality flag 4’s threshold

Or
A reference source is unavailable