NF FRA5022, Instruction Manual

Page: 128 / 145

7.7 Performance Testing
FRA5022
7-5
7.7.4 Ratio Accuracy Test
Connection: OUTPUT OSCILLATOR
→
INPUT CH1, CH2 parallel
Separate the oscillator output in two by using a T shape divider and connect
each end to the analyzer's CH1 and CH2.
Use a BNC-BNC coaxial cable with a response impedance of 50
Ω
and a
length of 1m.
Settings: After initialization the settings,
Minimum frequency: 10Hz, Maximum frequency: 100kHz, Frequency points:
100
Integration cycle: 1, Integration time: 0.10s
AC amplitude: 7.07, 1, 100m, 10m Vrms/open
After each modification of amplitude press the ON AC/DC key to reflect the
changes in output.
Measurement: For each AC amplitude, press the DOWN or UP key and execute a sweep
measurement.
Evaluation: Correct if within the following range.
With Frequency
≦
20kHz Gain 0
±
0.05dB / Phase 0
±
0.3
°
With Frequency
＞
20kHz Gain 0
±
0.15dB / Phase 0
±
1
°