User`s guide

Agilent X-Series Signal Generators User’s Guide 109
Optimizing Performance
Using Internal Channel Correction (N5172B/82B Only)
Configure Internal Channel Correction
NOTE There is an internal calibration routine (Enhanced Factory Calibration) that collects
correction data for both the baseband and RF magnitude and phase errors over the entire
RF frequency and power level range on any unit with options 653, 655, 656, and 657. The
internal channel correction cannot be turned on until after the Enhanced Factory Calibration
has been executed once. See “Perform Enhanced Factory Calibration” on page 109.
The following is a basic configuration for using the signal generator’s internal channel correction.
Refer to Figure 5- 18.
On the signal generator:
1. Set the center frequency:
Press Freq > 3 > GHz
2. Set the I/Q to internal (default):
Press I/Q > I/Q Source > Internal
3. Press I/Q to On
4. Perform internal channel correction:
Press More > Int Channel Correction Off On to On
Perform Enhanced Factory Calibration
For instruments with firmware prior to B.01.10, the Enhanced Factory Calibration must be run once
before you can turn on the I/Q Internal Channel Corrections (Factory Correction Type). Optionally,
this calibration procedure can be run anytime for new calibration data.
NOTE Depending on the equipment you use, the Enhanced Factory Calibration may take up to four
hours to complete.
On the signal generator:
1. Press Utility > More > Service > I/Q Int Channel Correction Calibrations > Enhanced Factory Calibration.
2. Follow the instructions on the signal generator display to complete the calibration.