Troubleshooting waveform files – Agilent Technologies N5183A MXG User Manual

Page 286

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Agilent N518xA, E8663B, E44x8C, and E82x7D Signal Generators Programming Guide

Creating and Downloading Waveform Files
Troubleshooting Waveform Files

Troubleshooting Waveform Files

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 628, DAC over range

The amplitude of the signal exceeds the DAC input range. The typical causes are
unforeseen overshoot (DAC values within range) or the input values exceed the
DAC range.

To solve the problem, scale or reduce the DAC input values. For more information,
see

“DAC Input Values” on page 188

.

On the Agilent MXG, this error can occur if an encrypted file (.SECUREWAVE) is
being downloaded to the signal generator from a PC or USB Media with a different
suffix (i.e. not .SECUREWAVE).

To solve the problem, use the

Use as or Copy File to Instrument softkey menus to

download the encrypted file to the instrument. For more information, see

“Encrypted I/Q Files and the Securewave Directory (Agilent MXG)” on page 205

.

ERROR 629, File format invalid

The signal generator requires a minimum of 60 samples to build a waveform and
the same number of I and Q data points.

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. Refer to

“Waveform Memory” on page 198

.

No RF Output

The marker RF blanking function may be active. To check for and turn RF blanking
off, refer to

“Configuring the Pulse/RF Blank (Agilent MXG)” on page 277

and

“Configuring the Pulse/RF Blank (ESG/PSG)” on page 277

. This problem occurs

when the file header contains unspecified settings and a previously played
waveform used the marker RF blanking function.

For more information on the marker functions, see the User’s Guide.

Undesired output signal

Check for the following:

The data was downloaded in little endian order. See

“Little Endian and Big

Endian (Byte Order)” on page 186

for more information.

The waveform contains an odd number of samples. An odd number of samples
can cause waveform discontinuity. See

“Waveform Phase Continuity” on

page 195

for more information.

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