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Agilent N518xA, E8663B, E44x8C, and E82x7D Signal Generators Programming Guide 319
Creating and Downloading User-Data Files
Pattern RAM (PRAM) Data Downloads (E4438C and E8267D)
:RADio:GSM:STATe On
Modulating and Activating the Carrier
Use the following commands to modulate the carrier and turn on the RF output. For a complete
listing of SPCI commands, refer to the SCPI Command Reference.
:FREQuency:FIXed 1.8GHZ
:POWer:LEVel -10.0DBM
:OUTPut:MODulation:STATe ON
:OUTPut:STATe ON
Storing a PRAM File to Non-Volatile Memory and Restoring to Volatile Memory
After you download the file to volatile memory (waveform memory), you can then save it to
non-volatile memory. Remember that a PRAM file downloads to waveform memory. Conversely, when
you store a PRAM file to non-volatile memory, it uses the same directory as waveform files. When
storing or restoring a file, you must include the file path as part of the file_name variable.
Command Syntax
The first file_name variable is the current location of the file and its name; the second file_name
variable is the destination to store the file and its name.
There are three ways to format the file_name variable to include the file path:
Extracting a PRAM File
When you extract a PRAM file, you are extracting the translated 32-bit word-per-byte file. You cannot
extract just the downloaded data. Extracting a PRAM file is similar to extracting a waveform file in
that you use the same commands, and the PRAM file resides in either volatile memory (waveform
memory) or the waveform directory for non-volatile memory. After extraction, you can download the
file to the same signal generator or to another signal generator with the proper option configuration
that supports the downloaded file. There are two ways to download a file after extraction:
• with the ability to extract later
• with no extraction capability
Volatile Memory to Non-Volatile Memory
:MEMory:COPY "WFM1:file_name","NVWFM:file_name"
:MEMory:COPY "file_name@WFM1","file_name@NVWFM"
:MEMory:COPY "/user/bbg1/waveform/file_name","/user/waveform/file_name"
Non-Volatile Memory to Volatile Memory
:MEMory:COPY "NVWFM:file_name","WFM1:file_name"
:MEMory:COPY "file_name@NVWFM","file_name@WFM1"
:MEMory:COPY "/user/waveform/file_name","/user/bbg1/waveform/file_name"