Saluki S5105 Series, Руководство пользователя

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Press
【
Reset
】
, [Default State] .
b) Receive a GSM signal through the antenna, or use a signal generator to generate a GSM analog
signal and connect spectrum input of the microwave analyzer via cable.
c)
Set the reference level of Analyzer:
Press
【
Amplitude
】
, [Ref Level] , -10 [dBm]
Press [Scale] to set the scale to 10dB/div.
d)
Set the resolution bandwidth and video bandwidth:
Press
【
BW
】
, [RBW Auto Man] , set the resolution bandwidth to 10kHz;
Press [VBW Auto Man] to set the video bandwidth to 30kHz or more.
e)
Switch to adjacent channel power ratio measurement:
Press
【
Measure
】
and [ACPR] to switch to the measurement interface of adjacent channel power ratio.
f) Set the center frequency of the main channel:
Press [Center Freq] and set the center frequency of the main channel with the figure keys. The center
frequency is set to 947.5MHz for the GSM signal.
g)
Set the main channel bandwidth:
Press [Main Ch BW] and set the bandwidth of the main channel with the figure keys. The channel
bandwidth is set to 2MHz for GSM signals.
h)
Set the adjacent channel bandwidth:
Press [Adj Ch BW] and set the required adjacent channel bandwidth with the figure keys. The adjacent
channel bandwidth is set to 30 kHz for the GSM signal.
i)
Set the channel offset.
Press [Ch Space], set the desired channel offset with figure keys , enter 19.5MHz for the GSM signal.
j)
Turn on the adjacent channel power ratio test:
Press
【
Mode
】
, [ACPR >], [ACPR Off On]. The measurement results are displayed at the bottom of the
screen.
The threshold test function will facilitate the user to observe whether the adjacent channel power
exceeds the set range. Steps for using the threshold test function are as follow:
a)
Threshold setting:
Press
【
Measure
】
, [ACPR], [Page Down] to enter the adjacent channel power ratio threshold test menu;
Press [Upper Ch Threshold] and use the numeric keys to enter the upper adjacent channel threshold;
Press [Down Ch Threshold] and use the numeric keys to enter the lower adjacent channel threshold.
b)
Open the threshold test function:
Press [Threshold Test Off On] to open the threshold test function. If the adjacent channel power ratio
exceeds the set threshold, the screen will be marked with a red background.
Section 9 Menu Description
This Section introduces the menu structure and menu details in the spectrum analyzer mode of the
S5105D/E/F microwave analyzer.
1 Menu Structure
Spectrum analyzer mode mainly includes 9 group menu such as frequency, amplitude, bandwidth, sweep,
trace, marker, peak, measurement and file, while file makes references of file management introduction
of basic operation of equipment, and its menu structure is as follows: