Frequency Response Adjustment

This adjustment applies to the following models:

In this adjustment flatness corrections are turned off, and amplitude error versus frequency is measured from 9 kHz to 3 GHz (or 7.5 GHz). The data is then normalized to 50 MHz to generate corrections relative to 50 MHz.

Flatness is corrected with 752 data points from 9 kHz to 7.5 GHz. The correction points are generated from the adaptive flatness routine. Flatness corrections are generated for each attenuator step for both preamp off and on. The data is then stored in memory.

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Required Test Equipment

Test Equipment

Recommended Model Number

RF Signal Generator

PSG Models
(see equipment list)

Function Generator

33622A 

Power Meter

N1914B

RF Power Sensor
(2 required)

E9304A Option H18

RF Power Splitter

11667A 

10 dB Fixed Attenuator

8491A Option 010

BNC Cable
(2 required)

8120-1840 

Coaxial Cable, 3.5 mm

11500E

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

1250-1744

Type-N (m) to Type-N (m) adapter

1250-1475

3.5 mm (f) to 3.5 mm (f) adapter
(for 3.5 mm source)

83057B

3.5 mm (f) to 2.4 mm (f) adapter
(for 2.4 mm source)

11901B

Connection Setups

In the following setups, cables are designated as solid lines and direct connections are designated as dashed lines.

Power Meter Calibration

For 50 MHz to 3.0 / 7.5 GHz, :

50 MHz to 3.0 / 7.5 GHz Adaptive Flatness Setup

 

50 MHz to 3.0 / 7.5 GHz Flatness
Splitter Characterization

 

50 MHz to 3.0 / 7.5 GHz Flatness

Adjustment Setup

 

For 9 kHz to 50 MHz, :

Frequency Response 9 kHz to 50 MHz
Splitter Characterization

 

Frequency Response 9 kHz to 50 MHz
Adjustment Setup