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Chapter 2 57
Basic Operation
Using Data Storage Functions
Viewing Stored Files in the Memory Catalog
1. Press
Utility > Memory Catalog > Catalog Type.
All files in the memory catalog are listed in alphabetical order, regardless of which catalog type
you select. File information appears on the display and includes the file name, file type, file size,
and the date and time the file was modified.
2. Press
List.
The “Catalog of List Files” is displayed.
3. Press
Catalog Type > State.
The “Catalog of State Files” is displayed.
4. Press
Catalog Type > All.
The “Catalog of All Files” is displayed. For a complete list of file types, refer to Table 2-1 on
page 56.
Using the Instrument State Registers
The instrument state register is a section of memory divided into 10 sequences (numbered 0 through
9) with each sequence consisting of 100 registers (numbered 00 through 99). Instrument state
sequences and registers are used to store and recall instrument settings and provide a quick way to
reconfigure the signal generator when switching between different instrument and signal
configurations. The signal generator with Option 005 (internal hard drive) has approximately 4 GB
available for storing instrument state files and other user data. Without Option 005, the signal
generator has 20 MB available for data and instrument state storage. Instrument state files can vary
in length depending on the signal generator’s configuration.
File data, such as modulation formats, arb setups, and table entries, are not stored with the save
function. Only setups such as frequency, attenuation, power and other user-defined settings that do
not survive a power cycle or instrument reset can be saved to a sequence and register. Any data file,
such as an arb format file, associated with the instrument state will only be referenced by its file
name. Once an instrument state has been saved, recalling that state will setup the generator with the
saved settings and load the associated file data.
For more information on storing file data such as modulation formats, arb setups, and table entries
refer to “Storing Files to the Memory Catalog” on page 56. Refer to the E8257D/67D PSG Signal
Generators Programming Guide and the E7257D/67D PSG Signal Generators Key Reference for more
information on the save and recall function.
NOTE A reference to a file is saved along with the instrument state. However, no data is saved
with the save function. You must store file data, using store commands, in a different
memory location.
Saving an Instrument State
1. Preset the signal generator, then turn on amplitude modulation (the AM annunciator will turn on):
a. Press
Frequency > 800 > MHz.
b. Press
Amplitude > 0 > dBm.
c. Press AM > AM Off On.