Amplitude Accuracy At 50 Mhz - Keysight N8973B Service Manual

Functional Tests

Amplitude Accuracy at 50 MHz

Amplitude Accuracy at 50 MHz
Test Limits
Amplitude Accuracy should remain within 1.13 dB of the measured source
value across the range of source levels and changes in resolution bandwidth.
The Preamp (option P03, P07, P13, P26, P32, P44) should remain within ±1.3
dB of measured values.
A synthesized sweeper is used as the signal source for the test. The source
amplitude is varied using the signal source amplitude control. The attenuation
and resolution bandwidth are varied on the signal analyzer. The source
amplitude is measured by the power meter and signal analyzer at each setting,
and the values compared. The difference between each pair of measurements
indicates the amplitude accuracy.
Item
a
Adapter
a
Adapter
b
Adapter
b
Adapter
Attenuator, 30 dB
Cable
Cable
Power Meter
Power Sensor
Power Splitter
Synthesized Sweeper
a. For N8973B, 74B, 75B
b. For N8976B
Keysight NFA Series Noise Figure Analyzers Service Guide
Critical Specifications
Type-N (m), to 3.5 mm (m)
3.5 mm (f) to 3.5 mm (f)
2.4 mm (f) to 3.5 mm (m)
2.4 mm (f) to 3.5 mm (f)
Accuracy: < 0.5 dB at 50 MHz
3.5 mm, 1 meter
BNC, 120 cm
Compatible with power sensor
Amplitude Range: −25 dBm to 10 dBm
3.5 mm (f) connectors
6 dB loss
Typical Temperature Stability: 0.01 dBc/°C
Recommended
Keysight Model
1250-1743
83059B
11901A
11901B
11708A
11500E
10503A
E4418B
8485A
11667B
PSG
501