170 Chapter2
Making Adjustments
27. Checking the Absolute Amplitude Accuracy for Option 051
Frequency Response Input Attenuator 40 dB
57.On the analyzer, press the following keys.
AMPLITUDE, ATTEN AUTO MAN, 40, dB
AMPLITUDE, 10, +dBm
58.Set the FREQUENCY of the analyzer to the measurement frequency
shown in Table 2-25.
59.On the synthesized sweeper, press CW, then set the frequency to the
same measurement frequency as the analyzer is set in the previous
step.
60.On the analyzer, press
PEAK SEARCH.
61.On the synthesized sweeper, press POWER LEVEL and adjust the
amplitude so the analyzer marker amplitude reads +5 dBm
±0.05 dB.
62.Set the power sensor cal factor (for frequency being measured) on
the measuring receiver, then record the measuring receiver power
reading in Table 2-25.
63.Repeat step 58 to step 62 for frequencies of 1477 MHz, 1453 MHz,
and 1429 MHz. Record the results in Table 2-25.
Table 2-25 Frequency Response Attenuator 40 dB
Synthesized
SweeperFrequency
(MHz)
Measuring Receiver
Min (dBm) Reading (dBm) Max (dBm)
1501 +4.0 _________________ +6.0
1477 +4.0 _________________ +6.0
1453 +4.0 _________________ +6.0
1429 +4.0 _________________ +6.0
To Next Page
Loading...
Need help?
General
