NF FRA5014, Instruction Manual

Page: 93 / 107

7.7 Performance Test
FRA5014 7-5
7.7.4 Ratio accuracy test
Connection: OUTPUT OSCILLATOR
→
INPUT CH1, CH2, CH3, CH4 parallel
Use a T divider, etc., to split the oscillator’s output into four output channels, and
connect them to the analyzer’s CH1, CH2, CH3, and CH4.
Use a BNC-BNC coaxial cable one meter long or less, with characteristic
impedance of 50 Ω.
Setting: After initializing settings, set frequency lower limit as 10 Hz, frequency upper limit
as 100 kHz, frequency points as 100, integration cycle as 1, integration time as 0.10
s, AC amplitude as 7.07, 1, 100 m, 10 mVrms/open
After setting the amplitude, set the output on to have the settings reflected in the
output.
Measurement: Perform a sweep measurement at each AC amplitude.
Judgment: Normal if within the following ranges.
Frequency

20 kHz, gain is 0

0.05 dB, phase is 0 ±0.3

Frequency > 20 kHz, gain is 0

0.15 dB, phase is 0 ±1
