Anritsu MT8801C, Руководство по эксплуатации, Страница: 96 / 137

Section 4 Peformance Tests
4-14
(4) Test procedure
Step Operation procedure
1. Set the signal generator to 101 MHz, –12 dBm.
2. Execute Cal of the calibration receiver.
3. Press the spectrum analyzer Preset key.
4. Execute Cal.
5. Set the MT8801C as follows:
Center Freq: 101 MHz Span: 3 MHz
Reference Level: 0 dBm Attenuator: 0 dB
RBW: 1 kHz VBW: Minimum
6. Press the Peak
→
REF key. The peak point of the spectrum waveform is set to the reference level.
7. At the end of one sweep, press the Delta Marker key.
8. Set the measured value of the calibration receiver to “Measure to Reference”.
9. Read the delta marker level value (B) of the measured value (A) of the calibration receiver when the
output level value of the signal generator value is changed as shown in the table below.
10. Repeat steps 5 through 9 in accordance with the table below.
LOG Linearity Test
Set value of output level
of signal generator (dB)
0
–10
–20
–30
–40
–50
–60
–70
–80
RBW=1 kHz
0 (Reference)
Error (B
−
A) (B)
RBW=30 kHz
0 (Reference)
RBW=1 MHz
0 (Reference)
Measurement
uncertainty
Effective
lower limit
Effective
upper limit
--- ---
±
0.03 dB
±
0.03 dB
– 0.47 dB +0.47 dB
±
0.04 dB
– 0.46 dB +0.46 dB
– 0.96 dB +0.96 dB