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Anritsu ML2480B Series Maintenance Manual

Anritsu ML2480B Series
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3-4 Input Range Verification Chapter 3 — Performance Verification
3-4 PN: 13000-00164 Rev. K ML248xx, ML249xA MM
Pass/Fail Criteria
The meter should be accepted as PASSED if it meets the error and linearity statistics listed in Table 3-2.
Absolute Error
The absolute error is the difference between the measured level and expected level. For example, from the
readout shown in Figure 3-2, the calculated absolute error for Range 1 Upper (R1U) is:
R1
upper
– R1
expected
= (–0.955) – (–0.9540) = –0.0010 dB
The calculated absolute error in this case should be –0.020 dB and 0.020 dB which are the limits
shown in Table 3-2.
Linearity
The linearity is the difference between the upper range error and the lower range error. For example, from the
absolute error calculations above, the calculated linearity is:
Error R1U – Error R1L = (0.0010) – (0.0002) = 0.0008 dB
The calculated linearity in this case should fall between –0.040 and 0.040 dB as shown in Table 3-2.
Range Change
The range change error is the difference between the errors for the two dB levels at the overlap between any
two ranges. This should be –0.030 dB and 0.030 dB as shown in Table 3-2. For example, the maximum
range change error between R1L–R2U is:
R1L
error
– R2U
error
= (0.0002) – (–0.0008) = 0.0010 dB
Table 3-2. Pass/Fail Criteria
Range Specifications (dB)
Range 1 Absolute Error –0.020 R1U 0.020
Range 1 Linearity –0.040 R1U–R1L 0.040
Ranges 1-2 Change –0.030 R1L–R2U 0.030
Range 2 Linearity –0.040 R2U–R2L 0.040
Ranges 2-3 Change –0.030 R2L–R3U 0.030
Range 3 Absolute Error –0.020 R3U 0.020
Range 3 Linearity –0.040 R3U–R3L 0.040
Ranges 3-4 Change –0.030 R3L–R4U 0.030
Range 4 Linearity –0.040 R4U–R4L 0.040
Range 4-5 Change –0.030 R4L–R5U 0.030
Range 5 Linearity –0.040 R5U–R5L 0.040
Range 7 Absolute Error –0.030 R7U 0.030
Range 8 Absolute Error –0.030 R8U 0.030
Range 8 Linearity –0.085 R8U–R8L 0.085
Range 9 Absolute Error –0.050 R9U 0.050
Range 9 Linearity –0.18 R9U–R9L 0.18

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Anritsu ML2480B Series Specifications

General IconGeneral
BrandAnritsu
ModelML2480B Series
CategoryMeasuring Instruments
LanguageEnglish

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