Frequency Response Preamp On Test

(N9912A Options 235 and 230/231)

This test measures the amplitude accuracy at individual CW frequencies across the range of the instrument. Measurements are referenced to 50 MHz. Preamp is on.

Test type:

functional

Related specification:

The test limits are derived from the specification values for Preamp (PA) off and typical values as follows:

Test Limit = (PA off spec) + (((PA on typ) - (PA off typ)) * (PA off spec/PA off typ))

Related adjustment:

Frequency Response, Preamp On

Required Test Equipment

Test Equipment

Recommended Model Number
(see main equipment list for alternative models)

Signal Generator #1

E8257D with options:

  • 550
  • 1E1
  • 1EA or 1EU

  • UNR or UNX or UNY

Attenuator/Switch Driver

11713B Opt 001/024/060/101

Attenuator, 6 dB fixed

8491A Opt 006

Attenuator, 1 dB step

8494G Opt 001/024

Attenuator, 10 dB step

8496G Opt 001/024

Power Meter

N1914A

Power Sensor

E9304A Opt. H18

Power Splitter

11667A

Power Sensor Cable

11730A

BNC Cable

8120-2582

Type-N Cable

11500C

Attenuator control cable
(Qty. 2)

8120-2703

 

Connection Setups

The following notes apply to illustrations in the FieldFox Help:

  • Only a single representative model will be shown.
  • Some illustrations may differ than those in TME.

  • For procedures that apply to multiple ports, illustrations will show the setup on only one test port.

Frequency Response Preamp On Test Setup