Ceyear 4041 Series, User Manual

Page: 172 / 203

Chapter XI Performance Characteristics Test
160
2.4 mm (f)-2.4 mm (f) adapters * 2
c) Cable
BNC (m-m) cable * 1
2.4 mm (m-m) cable * 1
d) Test steps
Fig 11-13 Image, Multiple, and Out-of-band Response Testing setup
1) Connect the test instrument as shown in Fig 11-13. The spectrum analyzer provides a reference frequency
for the synthesized signal source.
2) Sets the frequency of 1464C to 2 GHz, and power to -10 dBm.
3) Set up the spectrum analyzer as follows:
Center frequency .......................................................................................................................................... 2 GHz
Span ............................................................................................................................................................ 10 kHz
Reference level ......................................................................................................................................... -10 dBm
Resolution bandwidth ................................................................................................................................... 10 Hz
Video bandwidth ........................................................................................................................................... 10 Hz
4) Adjust the output power level of synthesized signal generator so that the peak value of the signal close to the
reference level of the spectrum analyzer.
5) Press
【
Peak
】 【
Marker
】
[Detla] on the spectrum analyzer.
6) Set the 1464C to each frequency point where image, multi and out-of-band responses can occur at 2GHz in
the corresponding test item listed in the
“
4041 Series Spectrum Analyzer Record Sheet
”
. Set the reference
level of spectrum analyzer to -40 dBm and the resolution bandwidth to10Hz. Press
【
Peak
】
, and record the
differential marker amplitude as the response amplitude in the corresponding test item of the
“
4041 Series
Spectrum Analyzer Record Sheet.
7) For the image, multiple, and out-of-band responses of the remaining frequency points listed in the "4041
Series Spectrum Analyzer Record Sheet", refer to steps 2 to 6 for testing until all frequency points have been
tested.
BNC cable
Synthesized
signal generator
Spectrum Analyzer
Adapter
10 MHz IN
2.4 mm cable
Adapter
10 MHz output