30
Amplitude Accuracy at 50 MHz
Procedure
h.
Record the signal amplitude, as measured by the analyzer in the
Measured Amplitude column of
i.
Calculate the signal amplitude accuracy error using the following
equation, and record the results under the Amplitude Accuracy
Error column:
Amplitude Accuracy Error = Me Step Attenuator
−
Power_meter
Table 5-1
Amplitude Accuracy Results
Nominal
Source
Amplitude
(dBm)
Step
Atten
(dB)
Span
(MHz)
Measured
Amplitude
Meas_amp
(dBm)
Power Meter
Amplitude
Power_meter
(dBm)
Amplitude
Accuracy
Error
(dB)
Test Limit
(dB)
−
4
10
2
±1.13 dB
−
9
10
1
±1.13 dB
−
1
4
10
0.5
±1.13 dB
−
4
20
0.1
±1.13 dB
−
1
4
20
0.1
±1.13 dB
−
4
30
0.1
±1.13 dB
−
14
30
0.1
±1.13 dB