192 Agilent N518xA, E8663B, E44x8C, and E82x7D Signal Generators Programming Guide
Creating and Downloading Waveform Files
Understanding Waveform Data
NOTE The signal generator can accept separate I and Q files created for the earlier E443xB ESG
models. For more information on downloading E443xB files, see “Downloading E443xB Signal
Generator Files” on page 228.
The following figure illustrates interleaving I and Q data. Remember that it takes two bytes (16 bits)
to represent one I or Q data point.
11001010 01110110 01110111 00111110I Data
Q Data 11101001 11001010 01011110 01110010
11001010 01110110 11101001 11001010 01110111 00111110 01011110 01110010
I Data Q Data
I Data Q Data
Interleaved Binary Data
CA 76 E9 CA 77 3E 5E 72
Q Data Q DataI Data
I Data
Interleaved Hex Data
Binary
Hex CA 76 77 3E
Binary
Hex E9 CA 5E 72
Waveform
data point Wavefor m
data point
Waveform data point Waveform data point
MSB MSBLSB LSB