Specifications

Adjustments ESG Family Signal Generators
Adjustment Relationships
5-2 Calibration Guide
Adjustment Relationships
Anytime an adjustment is made to the signal generator other related adjustments may be
affected. For optimal performance, whenever an adjustment is performed, the related
adjustments should also be performed.
Analog Bus Related Adjustments
The following adjustments are optimized if the Analog Bus ADC Calibration has been run:
• VCO Bias Potentiometer Adjustment
• FM Inverting Amplifier Offset Calibration
• ALC Modulation Drive Bias Calibration
• VBLO Mixer Bias Calibration
• Level Meter Calibration
• I/Q Gain/Offset/Quadrature Calibration (ESG-D only)
• I/Q Impairment Adjustment (ESG-D only)
Synthesizer Potentiometer Related Adjustments
The Lock Angle potentiometer is preset fully counter-clockwise in the VCO Bias
Adjustment. Both adjustments should always be performed together.
• VCO Bias Potentiometer Adjustment
• Lock Angle Adjustment
AM Accuracy Related Adjustments
• AM Audio Path Offset Calibration
• AM Gain Calibration
I/Q Modulation Accuracy Related Adjustments
• VBLO Mixer Bias Calibration
• I/Q Gain/Offset/Quadrature Calibration (ESG-D only)
• I/Q Impairment Adjustment (ESG-D only)
• Baseband Generator I/Q Gain and Offset Adjustment (Options UN3 or UN4 only)
Burst Modulation Accuracy Related Adjustments
• Burst Modulator Calibration (ESG-D only)
• Burst Audio Path Gain Calibration (ESG-D only)