Programming instructions

Downloading and Using Files
Data Transfer Troubleshooting
Chapter 4196
ARB Waveform Data Download Problems
Data Requirement Reminders
To avoid IQ waveform data download problems, the following six conditions must be met:
1. Data must be in signed, 2’s complement (binary) format.
2. Data must ordered MSB first to LSB last. Each IQ sample has 4 bytes of data.
3. Input integers must be between –32768 and 32767.
4. Each I and Q waveform file must have at least 60 samples.
Table 4-6 IQ Waveform Data Download Trouble - Symptoms and Causes
Symptom Possible Cause
ERROR 224, Text file busy.
Attempting to download a waveform that has the same name as
the waveform currently being played by the signal generator.
To solve the problem, either change the name of the waveform
being downloaded or turn off the ARB.
ERROR -321, Out of memory.
There is not enough space in the ARB memory for the waveform
file being downloaded.
To solve the problem, either reduce the file size of the waveform
file or delete unnecessary files from ARB memory.
No RF Output If no user marker file is provided then a default marker file
containing all zeros is created. If the signal generator’s Mrk 2 to
RF Blank softkey is set to on, the RF will be blanked. Go to MODE
> Dual ARB > ARB Setup and toggle Mrk 2 to RF to off.