F53 - Gps Operation Mode - Symmetricom XLi User Manual

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F53 – GPS Operation Mode
Use function F53 to set the operation mode for all receiver types except the 86-8013, which doesn't have
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modes. (If the 86-8013 is the only receiver available, F53 reports "GPS Availability, Not Available".)
The GPS C/A Receiver (87-8028-2)
• Select "Dynamic Mode" if the position of the receiver is subject to frequent change, or if it is in
continuous motion. For example, use Dynamic Mode when the XLi is used in mobile vehicles
such as ships, land vehicles, or aircraft. With Dynamic Mode selected, the receiver updates the
position information repeatedly to arrive at the best time calculations for a mobile environment.
• Select "Time Mode" if the receiver used in a static environment such as a server room. With Time
Mode, the receiver averages the position data over time to determine the antenna position and
calculate the time precisely and accurately. TRAIM is also supported in Time Mode only.
Keypad
While viewing the Status screen on the XLi front panel display, press the following keypad buttons:
ENTER 53 ENTER
If an GPS C/A Receiver (87-8028-2) is available, F53 displays:
GPS C/A AVAILABILITY
OPTION BAY #
Where # is the option bay number the card is located in. (If no GPS is available, F53 displays "GPS
AVAILABILTY, NOT AVAILABLE"). If more than one GPS is present, use the UP/DOWN ARROW buttons
to select the option bay location of a specific card.
To view the mode the GPS is in, press ENTER again, and F53 displays the current mode:
GPS MODE SELECT
AUTO MODE (or DYNAMIC MODE)
To change the mode, use the UP/DOWN ARROW buttons and press ENTER. F53 asks:
SAVE CHANGES?
YES
To save changes, press ENTER.
Command Line
To request the GPS operation mode of an GPS C/A Receiver (87-8028-2), enter:
F53 B<N>
F53 responds using the following format:
80
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has two modes:
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XLi Time & Frequency System
XLi-man, Issue 8, 6/17/2008, Rev. H
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