Freq Resp Below 3.6 GHz Preamp Off 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 3.6 GHz. The data is then normalized to 50 MHz to generate corrections relative to 50 MHz. The data is then stored in the analyzer memory.

If the analyzer is outfitted with Option EA3 (Electronic Attenuator), additional test points are generated. The Electronic Attenuator Flatness is corrected with approximately 130 data points from 9 kHz to 3.6 GHz. The corrections points are generated from the adaptive flatness routine. Two different sets of adaptive flatness data are used. One set of data covers 0 dB to 19 dB attenuation, and a different set covers 20 dB to 24 dB attenuation.

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Required Test Equipment

Test Equipment

Recommended Model Number

RF Signal Generator

PSG Models
(see equipment list)

Function Generator

33622A 

Digital Multimeter

3458A 

Power Meter

N1914B

RF Power Sensor
(2 required)

N8482A 

RF Power Splitter

11667A 

BNC Cable
(2 required)

8120-1840

Type-N Cable

11500C

50 W Termination

1250-0207

Dual Banana to BNC (f) adapter

1251-2277

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

1250-1475

Type-N (f) to 3.5 mm (f) adapter
(for 3.5 mm source)

1250-1745

Type-N (f) to 2.4 mm (f) adapter
(for 2.4 mm source)

11903B

Connection Setups

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

50 MHz to 3.6 GHz Adaptive Flatness Setup

 

Power Meter Calibration

 

 10 MHz to 3.6 GHz Flatness Splitter Characterization

 

 10 MHz to 3.6 GHz Flatness Adjustment Setup

 

Frequency Response 100 kHz to 300 kHz Splitter Characterization

 

 Frequency Response 100 kHz to 300 kHz Adjustment Setup

 

Digital Multimeter Calibration Setup

 

9 kHz to 100 kHz Flatness Adjustment Setup