Symmetricom Z3801A, User Manual

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Chapter 1 Getting Started
Using Commands to Control Key Functions (Examples)
1-14 User Guide
Using Commands to Control Key Functions
(Examples)
The operation of the GPS Receiver is designed to be as automatic as
possible. However, there are several situations where serial interface
control is required. The tasks described here are those most commonly
encountered.
For each task in this section, you can use either a terminal emulation
program or the SatStat program to issue the selected commands.
Additional information about the commands is provided in Chapter 4,
“Command Listing and Status Information,” of this guide.
To Perform Basic Installation and Simple
Customizing
After connecting the Receiver to the antenna, power source, DCE
device RS-422 port, and after the self test is completed, you may want
to complete installation using one or more of the capabilities described
below.
If required, restore all of the Receiver’s internal settings to
their factory shipment values by invoking a system preset.
After executing the system preset, the Receiver will begin normal
operation: it will acquire GPS signals, determine the date, time, and
position automatically, bring the reference oscillator ovens to a stable
operating temperature, lock the reference oscillator and its output to
10 MHz, and synchronize the 1 PPS output to UTC.
Settings affected by system preset are listed in Chapter 4, “Command
Listing and Status Information,” of this guide under the
:SYSTEM:PRESET
command definition.
The Receiver is preset using the command:
:SYSTEM:PRESET
Note that system preset should be performed only when necessary.