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4 OUTPUT @Hp8714;"DISP:ANN:FREQ1:MODE SSTOP"
5 OUTPUT @Hp8714;"DISP:ANN:FREQ1:MODE CSPAN"
6 OUTPUT @Hp8714;"SENS1:FREQ:CENT 175000000 HZ;*WAI"
7 OUTPUT @Hp8714;"ABOR;:INIT1:CONT OFF;:INIT1;*WAI"
8 OUTPUT @Hp8714;"DISP:WIND1:TRAC:Y:AUTO ONCE"
9 OUTPUT @Hp8714;"CALC1:MARK1 ON"
10 OUTPUT @Hp8714;"CALC1:MARK:FUNC BWID"
11 OUTPUT @Hp8714;"SENS2:STAT ON; *WAI"
12 OUTPUT @Hp8714;"SENS2:FUNC ’XFR:POW:RAT 1,0’;DET NBAN; *WAI"
13 OUTPUT @Hp8714;"ABOR;:INIT1:CONT OFF;:INIT1;*WAI"
14 OUTPUT @Hp8714;"DISP:WIND2:TRAC:Y:AUTO ONCE"
15 OUTPUT @Hp8714;"ABOR;:INIT1:CONT ON;*WAI"
16 END
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Directivity:40 dB (.010)
Measurement uncertainty: -20 * log (.158 + .100 + .010) = 11.4 dB (-4.6dB)
-20 * log (.158 - .100 - .010) = 26.4 dB (+10.4 dB)
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Directivity:40 dB (.010)
Worst-case error = .010 + .010 + .019 = .039
Measurement uncertainty: -20 * log (.158 + .039) = 14.1 dB (-1.9 dB)
-20 * log (.158 - .039) = 18.5 dB (+2.5 dB)
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Total measurement uncertainty: +0.60 + 0.22 = +0 .82 dB -0.65 - 0.22 = - 0.87 dB
Load match = 18dB (.126)
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Total measurement uncertainty: 0.01 + .08 = ± 0.09 dB
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DUT1 dB loss (.891)16 dB RL (.158) Effective load match = (.316 x .316 x .126 + .024)
= .0366 (28.7dB)
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Analyzer load match =18 dB (.126)
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2. Perform 2-port cal with adapter on port 1. Save in cal set 2.
4. Measure DUT without cal adapter.
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