178 Chapter 4
Downloading and Using Files
Downloading User File Data
Querying the Waveform Data
Use the following SCPI command line to query user file data from a binary memory:
:MMEM:DATA? "file_name"
The output format is the same as the input format.
Selecting Downloaded User Files as the Transmitted Data
Use the following steps to select the desired user file from the catalog of user files as a continuous stream of
unframed data for a custom modulation.
Via the front panel:
1. For custom modulation, press
Mode > Custom > Real Time I/Q Baseband > Data > User File. and highlight
the desired file in the catalog.
[:SOURce]:RADio:CUSTom:DATA "BIT:<file_name>"
2. Press
Select File > Custom Off On to On.
[:SOURce]:RADio:CUSTom[:STATe] On
NOTE To select a user file from a binary directory, send the same commands shown in the above
examples without BIT: preceding the file name. For example:
[:SOURce]:RADio:CUSTom:DATA "<file_name>"
3. Modulate and activate the carrier:
a. Set the carrier frequency.
b. Set the carrier amplitude.
c. Turn on modulation.
d. Turn on the RF output.
Troubleshooting User File Download Problems
NOTE Review “Data Requirements and Limitations” on page 175.
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