Ceyear 4041 Series, User Manual

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Chapter XI Performance Characteristics Test
147
Fig 11-8 Displayed average noise level testing setup
Displayed average noise, preamplifier on (2 MHz~10 MHz)
2) Set up the spectrum analyzer as follows:
Start frequency ............................................................................................................................................... 2 MHz
End frequency .............................................................................................................................................. 10 MHz
Reference level ........................................................................................................................................... -50 dBm
Marker ................................................................................................................................................... Markers off
Resolution bandwidth .................................................................................................................................... 1 MHz
Video bandwidth ......................................................................................................................................... 100 kHz
Preamplifier ......................................................................................................................................................... On
Detection type ..............................................................................................................................................Average
3) Press
【
Marker
】
[Marker Noise Off On],
【
Peak
】
[Maximum Value].
4) Press
【
BW
】
[Average On Off] 5 [Enter] and wait for completion of new sweep the average 5/5 appears on
the left side of the screen.
5) 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 on, 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 on (10 MHz~4 GHz)
6) Press
【
Marker
】
[Marker Noise Off On],
【
Peak
】
[Maximum Value].
7) Press
【
BW
】
[Average On Off] 5 [Enter] and wait for completion of new sweep the average 5/5 appears on
the left side of the screen.
8) 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 on, 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 on (4 GHz~6 GHz)
9) Set the start frequency of the 4041 series spectrum analyzer to 4 GHz and the stop frequency to 6 GHz, with
others left unchanged.
10) Repeat step 3 to step 4.
50

Matcher
Spectrum
Analyzer