Programming instructions

Downloading and Using Files
ARB Waveform Data Downloads
Chapter 4 161
Downloading E443xB Signal Generator Files
Download the E443xB type files to the signal generator exactly as if downloading files to a
E443xB signal generator.
Downloaded E443xB waveform type files will automatically be converted to the new file
format, as described on page 147, and stored into the signal generator’s memory.
The file conversion process takes more time than downloading files that are already in the
new file format. Store E443xB file downloads to waveform memory and then transfer them
over to NVWFM memory to avoid the time required to convert these file types.
E443xB Data Format
The following diagram describes the data format for the E443xB waveform files. This file
structure can be compared with the new style file format shown in Table 4-1 on page 148. If
new waveform files are created for the signal generator, use the new style format.
Storage Locations for ARB files
Waveforms can be stored to either volatile waveform memory or the non-volatile NVARB
memory. The signal generator supports the E443xB directory structure for waveform file
storage.
• For the E443xB style 14-bit waveforms the following storage locations are used:
1. For non-volatile, NVARB memory, the directory locations are /user/nvarbi/ and
/user/nvarbq.
2. For volatile waveform memory the directory locations are /user/arbi/ and
/user/arbq/.