Ceyear 4041 Series, Руководство пользователя

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Chapter XI Performance Characteristics Test
149
25) Repeat step 3 to step 4.
26) Read out the peak value where the marker locates as the displayed average noise level of the 2 MHz to 10
MHz band when the preamplifier is off, and record it in the corresponding test item of "4041 Series Spectrum
Analyzer Record Sheet". Disable the noise marker and averaging function.
Displayed average noise, preamplifier off (10 MHz~4 GHz)
27) Set the start frequency of the 4041 series spectrum analyzer to 10 MHz, the stop frequency to 4 GHz, the
reference level to -20 dBm, and the preamplifier \OFF, with others left unchanged.
28) Repeat step 3 to step 4.
29) Read out the peak value where the marker locates as the displayed average noise level of the 10 MHz to 4
GHz band when the preamplifier is off, and record it in the corresponding test item of "4041 Series Spectrum
Analyzer Record Sheet". Disable the noise marker and averaging function.
Displayed average noise, preamplifier off (4 GHz~6 GHz)
30) Set the start frequency of the 4041 series spectrum analyzer to 4 GHz, the stop frequency to 6 GHz, the
reference level to -20 dBm, and the preamplifier \OFF, with others left unchanged.
31) Repeat step 3 to step 4.
32) Read out the peak value where the marker locates as the displayed average noise level of the 4 GHz to 6 GHz
band when the preamplifier is off, and record it in the corresponding test item of "4041 Series Spectrum
Analyzer Record Sheet". Disable the noise marker and averaging function.
Displayed average noise, preamplifier off (6 GHz~20 GHz)
33) Set the start frequency of the 4041 series spectrum analyzer to 6 GHz, the stop frequency to 20 GHz, the
reference level to -20 dBm, and the preamplifier \OFF, with others left unchanged.
34) Repeat step 3 to step 4.
35) Read out the peak value where the marker locates as the displayed average noise level of the 6 GHz to 20
GHz band when the preamplifier is off, and record it in the corresponding test item of "4041 Series Spectrum
Analyzer Record Sheet". Disable the noise marker and averaging function.
Displayed average noise, preamplifier off (20 GHz~32 GHz)
36) Set the start frequency of the 4041 series spectrum analyzer to 20 GHz, the stop frequency to 32 GHz, the
reference level to -20 dBm, and the preamplifier \OFF, with others left unchanged.
37) Repeat step 3 to step 4.
38) Read out the peak value where the marker locates as the displayed average noise level of the 20 GHz to 32
GHz band when the preamplifier is off, and record it in the corresponding test item of "4041 Series Spectrum
Analyzer Record Sheet". Disable the noise marker and averaging function.
Displayed average noise, preamplifier off (32 GHz~40 GHz)
39) Set the start frequency of the 4041 series spectrum analyzer to 32 GHz, the stop frequency to 40 GHz, the