7 Save/Recall/Print
7.2 Recall
You can select one or more waveform files in the right-hand window. Each file
selected has a blue check box in it. To select a single file, tap that file’s row. To
select additional files, tap the check box in the row of the desired additional files.
When you have selected the file or files that you wish to recall, tap Recall. The file(s)
are recalled into the ARB memory, and appear in the left-hand window.
If a file of the same name already exists within ARB memory, it is overwritten. If you
wish to load two segments of the same name, you must rename one of the
segments before loading it into ARB memory. To rename a segment, you can either
use Windows File Explorer, or :MMEMory:COPY.
You can select one or more segments in the left-hand window and tap “Delete
Segments from ARB memory” to delete the selected files. You can also delete all
files in ARB memory by tapping “Delete All from ARB memory.
You can change the current directory by tapping on an element of the file path at
the top of the screen and selecting the desired subdirectory in the list that appears,
and repeating until you have the path you want. The current directory is used for
manually loading waveform segments into ARB memory for playback, and as a
search location for waveform segments that are required to be loaded into ARB
memory for playback of a waveform sequence or a list sequence.
File Type allows you to specify a waveform format. The available file types are listed
below:
Type Extension Notes
Waveform
Files
.wfm
Keysight Signal Studio files
Binary Files
.bin
Interleaved IQ data files. They could be single precision or
double precision customer created files. One-byte marker may
be added
CSV Files
.csv
Comma-separated value file. Could be generated by Excel
Text Files
.txt
Matlab Files
.mat
Should be Level 4, Level 5 or HDF5 MAT-files (only Level 5
Matlab file is supported in X24)
Waveforms in .csv, .txt and .mat formats are supported by models with a built-in
source, such as VXT and EXM.
.txt files are formatted according to the following rules:
1.
Text files only contain the IQ information. Data in the right column represents the
amplitude of real(I) points, Data in the left column represents the amplitude of
imaginary(Q) points
2.
The amount of data should be multiple of two (IQ pairs)
Short Range Comms & IoT Mode User's &Programmer's Reference 2239
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