Overview of Adjustments for RF Models

(N5161A / N5162A / N5166B / N5171B / N5172B / N5181A / N5181B / N5182A / N5182B / N5182BX07 / N5182N)

This section describes the available DUT signal generator adjustments for RF models listed above. Adjustments should not be used for calibration. Adjustments are designed to reset various circuit parameters. In addition, some of the tests reset or calculate correction values associated with some measurements. The software is designed to adjust the instrument operating within the temperature range defined by the instrument specifications.

Never perform adjustments as routine maintenance. Adjustments should be performed only after a repair or a performance test failure.

In all test equipment configurations, cables and adapters must be properly torqued. Exceeding recommended torque values can cause damage to a cable or adapter, and may cause inaccurate test results.

Recommended Adjustments Cycle

Run adjustments as required according to the Product Service Guide.

N5161A
N5181A

N5162A
N5182A

N5171B

N5172B
N5166B

N5181B

N5182B
N5182N

N5182BX07

Adjustments are listed in the order they should be performed to prevent invalid results and minimize changes in test equipment configurations. Click on the links below to go to the adjustment topic page.

 

 

 

x

 

x

 

Calibration Array Default

x

x

x

x

x

x

  

RF Abus Calibration

 

 

    

x

x

  

Synthesizer Offset Pretune Calibration

x

x

x

x

x

x

  

Reference VCO Tank DAC Calibration

x

x

x

x

x

x

  

Reference Internal Standard

x

x

x

x

x

x

  

Reference VCO Kv Calibration

 

 

    

x

x

  

Synthesizer Offset KV Calibration

 

 

x

x

x

x

  

Synthesizer Sum Pretune Calibration

 

 

    

x

x

  

Synthesizer Sum Attenuation Calibration

 

 

x

x

x

x

  

Synthesizer Sum KV Calibration

 

 

    

x

x

  

Synthesizer FracN KV Calibration

 

 

x

x

x

N5182B

  

Synthesizer Bandcross Calibration

 

 

x

x

x

x

  

ALC Linearity Calibration

x

x

          

VCO Pretune Calibration

x

x

          

VCO Lock Angle Calibration

x

x

          

ALC Conditioning Calibration

x

x

x

x

x

x

  

Absolute Power Calibration

 

 

x

x

x

x

  

Op Amp Band Power Calibration

x

x

x

x

x

x

  

ALC Calibration

x

x

x

x

x

x

  

Attenuator Calibration

 

 

x

x

x

x

  

Open Loop Power Calibration

 

 

x

x

x

x

  

Op Amp Band Attenuator Calibration

x

x

          

ALC Mod Driver Calibration

x

x

x

x

x

x

  

AM Calibration (Option UNT)

 

 

x

x

x

x

  

Synthesizer FM (Bessel) Calibration (Option UNT)

 

 

x

x

x

x

  

LF Output Calibration (Option UNT or 303)

 

 

x

x

x

x

  

External Mod Inputs Calibration (Option UNT or UNW)

x

x

          

DCFM Calibration (Option UNT)

x

x

          

FM Gain Calibration (Option UNT)

 

x

  

x

  

x

  

IQ Abus Calibration

 

x

  

x

  

x

  

IQ Prelevel Calibration

 

 

  

x

  

x

  

IQ VBLO Calibration

 

x

  

x

  

x

  

IQ Calibration

 

 

  

x

  

x

  

IQ Internal Channel Correction Coarse Calibration

 

 

  

x

  

x

  

IQ Skew Calibration

 

 

  

x

  

x

  

IQ Internal Channel Correction Fine Calibration

 

 

  

x

  

x

  

IQ Internal Channel Correction PM Calibration

 

 

x

x

x

x

  

Final Open Loop Calibration

 

 

x

x

x

x

 

Backup Cal Data to Motherboard Memory

 

 

        

x

Frequency Extender Calibration Array Restore

 

 

        

x

Frequency Extender Flatness/Atten Calibration

 

 

        

x

Backup Cal Data to Frequency Extender