10-7
Determining System Measurement Uncertainties
Determining Cable Stability Terms (C
R1
, C
R2
, C
TM1
, C
TM2
, C
TP1
, C
TP2
)
Figure 10-2 Cable Stability with a Short Connected
Figure 10-2 and Figure 10-3 demonstrate the concepts useful in determining cable
transmission stability. A short is connected to the free end. The DATA/MEM feature
provides an indication of the two-way cable transmission stability. The one-way
transmission magnitude stability is determined by dividing the two-way magnitude
measurement by two before it is converted to linear. A 0.013-dB peak on the chart yields
transmission magnitude stability estimated as 10
(0.013/40)
−
1 or 0.00075. The one-way
transmission phase stability is determined by dividing the two-way phase measurement
by two.
Figure 10-3 Cable Stability with a Short Connected
Cable movement often has a much larger effect on phase measurements than magnitude
measurements.
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Страница 11: ...1 1 1 HP 8719 20 22ES Specifications and Characteristics ...
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Страница 61: ...2 1 2 HP 8719 20 22ET Specifications and Characteristics ...
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Страница 99: ...3 1 3 Front Rear Panel ...
Страница 111: ...4 1 4 Menu Maps ...
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Страница 114: ...4 4 Menu Maps Menu Maps Figure 4 3 Menu Map for Display ...
Страница 115: ...4 5 Menu Maps Menu Maps Figure 4 4 Menu Map for Format Figure 4 5 Menu Map for Local ...
Страница 116: ...4 6 Menu Maps Menu Maps Figure 4 6 Menu Map for Marker Marker Fctn and Marker Search ...
Страница 118: ...4 8 Menu Maps Menu Maps Figure 4 9 Menu Map for Power and Sweep Setup ET only ...
Страница 119: ...4 9 Menu Maps Menu Maps Figure 4 10 Menu Map for Power and Sweep Setup ES only ...
Страница 120: ...4 10 Menu Maps Menu Maps Figure 4 11 Menu Map for Preset ...
Страница 121: ...4 11 Menu Maps Menu Maps Figure 4 12 Menu Map for Save Recall ...
Страница 122: ...4 12 Menu Maps Menu Maps Figure 4 13 Menu Map for Scale Ref ...
Страница 128: ...5 1 5 Hardkey Softkey Reference ...
Страница 194: ...6 1 6 Error Messages ...
Страница 222: ...7 1 7 Options and Accessories ...
Страница 234: ...8 1 8 Preset State and Memory Allocation ...
Страница 253: ...8 20 Preset State and Memory Allocation Memory Allocation ...
Страница 254: ...9 1 9 Understanding the CITIfile Data Format ...
Страница 269: ...9 16 Understanding the CITIfile Data Format Useful Calculations ...
Страница 270: ...10 1 10 Determining System Measurement Uncertainties ...
Страница 281: ...10 12 Determining System Measurement Uncertainties Measurement Uncertainty Equations ...