Freq Resp High Freq Preamp On Adjustment

This adjustment procedure performs the following steps (for Options P13 and P26):

The CXA-m PXIe signal analyzer's internal flatness corrections are turned off. The Preamp is turned on. Amplitude error is measured as a function of frequency from 7.5 GHz to 13.6 GHz (Option P13) or 26.5 GHz (Option P26). The measured error is normalized to 50 MHz to generate corrections relative to 50 MHz. Flatness corrections are generated for each attenuator step. The data is then stored in the analyzer memory as frequency/amplitude pairs.

The related performance test for this adjustment is Freq Resp High Freq Preamp On.

Required Test Equipment

Test Equipment

Recommended Model Number1

Microwave signal generator #1

PSG models
(see main equipment list)

Power meter

N1914A

Low power microwave power sensor

  • 2 required

8485D

Power splitter

11667B

Attenuator, 30 dB fixed

11708A

Cable, BNC (m) to SMB (f)

8121-2063

Cable, Coaxial, 3.5 mm (m) to 3.5 mm (m)

11500E

Adapter, 3.5 mm (m) to 3.5 mm (m)2

83059A

Adapter, 3.5 mm (f) to 3.5 mm (f)

  • For 3.5 mm source

83059B

Adapter, 2.4 mm (f) to 3.5 mm (f)

  • For 2.4 mm source

11901B

Adapter, 3.5 mm (f) to Type-N (m)

  • For 8485D power sensor

08485-60005
  1. Refer to the main equipment list for a list of alternative models (if available).
  2. The 3.5 mm (m) to 3.5 mm (m) adapter between the power splitter and the DUT is critical in this adjustment. Proper connector care and torqueing practices must be followed in order to insure optimal performance.

Connection Setups

Above 7.5 GHz Adaptive Flatness Setup

 

Power Meter Calibration

Splitter Characterization Setup

 

Freq Resp High Freq Preamp On Adjustment Setup