Technical description and operating manual ST 167 and ST167WB
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6.4 "MANUAL" OPERATION MODE
Select this mode by pressing the
button. The labels "MAN MOB" or "MAN BAS" will appear in
the upper left corner of the display. The second option corresponds to the selection MENU > "Band" - "Base
stations manual mode".
Moreover, while in the "AUTOMATIC" mode you can also switch to the "MANUAL" mode by pressin the buttons
or
. Press these same buttons to select the required standard.
It should be noted that when selecting the symbols “3G”, “4G” and “5G”, successive pressing of the
button will lead to the selection of frequency ranges related to these standards (See clause 6.1.1.).
The same happens when the «W» symbol or the data exchange intensity measurement option "T" are
selected. By pressing the buttons you will sequentially select 2.4 or 5GHz ranges.
When the blockers detection option symbol «J» is glowing. By pressing the buttons
or
you
will sequentially select blockers of GSM or GPS signals.
In this mode, a two-color diagram with a signal level change over time change
is displayed. The sections of the diagram where the signal level exceeds the threshold
are shown in red (Fig. 7).
Fig. 7
Pressing the button
provides a transition to a spectrogram with a frequency
range corresponding to this standard (except CDMA, BLUETOOTH and blockers). Figure 8
shows the screen displaying the signal levels immediately in all channels of standard DECT.
Red line - the detection threshold.
The bottom line shows the frequency of maximum signal, level and the last digit is
the average value of the signal level measured in all channels.
Displaying signal level is relatively the highest level. Therefore, when the signal
level greater than the existing ones, the screen displays only it, weaker signals disappear.
The threshold line is set with respect to the current level of the maximum signal and
therefore also moves vertically according to the level of the maximum signal. For
understanding focus on the meaning of the absolute maximum signal level expressed in
dBm (the second number in the bottom line).
Pressing the button
provides a transition to view the signal level for each
channel individually (Fig. 9).
The choice of channels carried out by buttons
and
.
Return to the previous display - press.
.
When the «S» character is selected, the unit analyzes the entire frequency range searching
for analogue signals, i.e. ART units.
Choice «S» is not provided by default (symbol grayed). To activate it, select "Band .." - "User band".
In this case there is a consistent and continuous scanning of a given frequency band in order to detect
signals have exceeded the threshold of a relative.
Fig.8
Fig.9
