Keysight N8973B User Manual

Keysight NFA Series Noise Figure Analyzers Service Guide 505
Functional Tests
Frequency Response (Flatness)
Frequency Response (Flatness)
Test Limits
The frequency response test measures the signal analyzer’s amplitude error as
a function of the tuned frequency. Measurements are made ranging from 50
MHz to the maximum frequency range of your analyzer. The signal source
amplitude is measured with a power meter to eliminate error due to source
flatness. The measured value is normalized to 50 MHz.
Frequency Range Limit Relative to 50 MHz
9 kHz to 3.6 GHz ±1.7 dB
> 3.6 GHz to 7.0 GHz ±3.0 dB
> 7.0 GHz to 13.6 GHz ±3.5 dB
> 13.6 GHz to 26.5 GHz ±4.2 dB
> 26.5 GHz to 34.5 GHz ±3.5 dB
> 34.5 GHz to 44 GHz ±4.2 dB
Item
Critical Specifications
(for this test)
Recommended
Keysight Model
Adapter, Type N (m) to
3.5 mm (m)
a
Frequency: 10 MHz to 18 GHz
VSWR: < 1.1:1
1250-1743
Adapter,
3.5 mm (f) to 3.5 mm (f)
a
Frequency: 10 MHz to 26.5 GHz
VSWR: < 1.1:1
83059B
Cable, 3.5 mm, 1 meter
a
(N8973B, 74B, 75B)
Frequency: 10 MHz to 26.5 GHz
VSWR: < 1.4:1
11500E
Cable, 2.4 mm, 1 meter
b
(N8976B)
Frequency: 10 MHz to 50 GHz
VSWR: < 1.55:1
8120-6164
Cables, BNC 120 cm Frequency: 10 MHz 10503A
Power Meter Compatible with power sensor E4418B
Power Sensor Frequency Range: 50 MHz to 26.5 GHz 8485A
Power Sensor
b
Frequency Range: 50 MHz to 44 GHz 8487A

Keysight N8973B Specifications

General

Brand	Keysight
Model	N8973B
Category	Measuring Instruments
Language	English