Technical data

Agilent Signal Generators Programming Guide 375
Creating and Downloading User–Data Files
Data Transfer Troubleshooting (N5162A, N5182A, E4438C and E8267D Only)
User FIR Filter Coefficient File Download Problems
Data Requirements
• Data must be in ASCII format.
• Downloads must be in list format.
• Filters containing more symbols than the hardware allows (32 for real- time modulation filters,
512 for Arb Custom Modulation filters, and 256 for Equalization filters) will not be selectable for
the configuration.
Table 6-21 User FIR File Download Trouble – Symptoms and Causes
Symptom Possible Cause
ERROR –321, Out of memory
There is not enough memory available for the FIR coefficient file being
downloaded.
To solve the problem, either reduce the file size of the FIR file or delete
unnecessary files from memory.
ERROR –223, Too much data
User FIR filter has too many coefficients.
The filter specification cannot have more than 1024 taps (2048
coefficients for a complex filter).