Ceyear 4041 Series, Руководство пользователя

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Chapter XI Performance Characteristics Test
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result in the "4041 Series Spectrum Analyzer Record Sheet".
1dB gain compression (4 GHz~13 GHz)
10) Connect the test instrument as shown in Fig 11-12. As shown in the Fig, a millimeter wave directional
coupler is used. Set the center frequency of 4041 to 9 GHz and the frequency of synthesized signal generator
#1 to 9.01 GHz, and the frequency of synthesized signal generator #2 to 9 GHz.
11) Set the calibration factor frequency of power meter to 9 GHz.
12) Repeat steps 6~8.
13) Disconnect the output of millimeter wave directional coupler from the 4041. Connect it with the power
sensor as shown by the dashed line in Fig 11-12. At this time, the reading of power meter is the 1 dB
compression point at 4 GHz to 13 GHz band. Record it as test result in the "4041 Series Spectrum Analyzer
Record Sheet".
1dB gain compression (13 GHz~44 GHz)
14) Connect the test instrument as shown in Fig 11-12. As shown in the Fig, a millimeter wave directional
coupler is used. Set the center frequency of 4041 D/E/F/G to 18 GHz, the frequency of synthesized signal
generator #1 to 18.01 GHz, and the frequency of synthesized signal generator #2 to 18 GHz.
15) Set the calibration factor frequency of power meter to 18 GHz.
16) Repeat steps 6~8.
17) Disconnect the output of millimeter wave directional coupler from the 4041. Connect it with the power
sensor as shown by the dashed line in Fig 11-12. At this time, the reading of power meter is the 1 dB
compression point at 13 GHz to 44 GHz band. Record it as test result in the "4041 Series Spectrum Analyzer
Record Sheet".
11.12 Image, Multiple, and Out-of-band Responses
Description: In the frequency mixing process, two input signals can mix with the same signal of the local
oscillator and generate IF signals of the same frequency. The frequency of one signal is lower than the signal of
local oscillator by one intermediate frequency, and the frequency of the other signal is higher than the signal of
local oscillator by one intermediate frequency. In such a condition, one signal is called the image of the other
signal. For each frequency of the local oscillator, each input signal has an image, and the frequencies of signal and
mirror differ by twice intermediate frequency.
Test the image, multiple and out-of-band responses on all frequency bands. Apply the signal to the input port of
the spectrum analyzer for measurement of reference amplitude. Then, tune the synthesized signal generator to a
frequency that can cause image, multiple or out-of-band responses, and then measure the amplitude, and record
the amplitude displayed on the spectrum analyzer.
A) Testing equipment
Synthesized signal generator 1464C
b) Adapter