IF Frequency Response Adjustment

(N9912A)

All adjustments will require the CFG Option. Refer to the CFG Option section for more information.

This adjustment determines gain compensation factors for a 5 MHz span for a single frequency in each SA band. For each frequency, the source generator is held at a single CW frequency while the LO steps through 101 points to cover the 5 MHz span. The LO stepping is accomplished by special service firmware. Amplitude is measured at each point and a compensation factor is calculated.

Related test:

IF Frequency Response

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.

IF Frequency Response Adjustment Setup