Chapter 2 167
Making Adjustments
27. Checking the Absolute Amplitude Accuracy for Option 051
Frequency Range 1429 MHz to 1501 MHz
Frequency Response input Attenuator 10 dB
37.Set the frequency of the analyzer to the first measurement frequency
shown in Table 2-22.
38.On the synthesized sweeper, press CW and set the frequency to the
same measurement frequency as the analyzer is set in the previous
step.
39.On the analyzer, press
PEAK SEARCH.
40.On the synthesized sweeper, press
POWER LEVEL and adjust the
output amplitude so the analyzer marker amplitude reads −9 dBm
±0.05 dB.
41.Set the power sensor cal factor (for frequency being measured) on
the measuring receiver, then record the measuring receiver power
reading in Table 2-22.
42.Repeat step 37 to step 41 for frequencies of 1453 MHz, 1477 MHz,
and 1501 MHz. Record the results in Table 2-22. The results should
be within the limits shown.
Table 2-22 Frequency Response Attenuator 10 dB
Synthesized
SweeperFrequency
(MHz)
Measuring Receiver
Min (dBm) Reading (dBm) Max (dBm)
1429 −9.6 _________________ −8.4
1453 −9.6 _________________ −8.4
1477 −9.6 _________________ −8.4
1501 −9.6 _________________ −8.4
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