Technical description and operating manual ST 167 and ST167WB
9
In the window that appears (Fig. 3), the first line, “Region,” allows you to set
cellular standards based on location. The list is being updated (See updates on the site).
Three options are now available: “All”, “Europe” and “South Korea”. The default is “Europe.”
Also, for automatic setting of standards, the ST181 base station analyzer is
used.
In this windows can be excluded from the analysis completely all cellular standards
pressing (uncheck line "Cellular..") or, if pressed again , enter into a detailed
list of standards (Figure 4).
The name of a disabled standard in the bottom of the screen will be discolored.
To return to the display mode ""AUTOMATIC" " (Figure 2) successively press on.
.
If there are no signals, that has exceeded the predetermined threshold the
indication corresponds to Fig 2.
Dotted line of variable length at the top of the screen indicates the serial view of
frequency ranges of the selected signals, while a continuous black line at the bottom of
the screen is an additional time period indication necessary to view the frequency range
signals of the ART (S).
Duration of the view depends on the selected range and the bandwidth being
analyzed. Maximum time corresponds to the full range and minimum bandwidth being analyzed. This option
is selected by default. If you change these values the viewing time will decrease until the line disappears.
Threshold is made via the menu - "Threshold .." and then select a desired
standard. Selection of the threshold value can be selected individually for each standard
DRT. The lower the number on the right side of the display - the higher the sensitivity.
Select the maximum sensitivity in the absence of false alarms from distant sources.
When exceeding the set threshold of any of the signals, its level is displayed as a
numerical value and the two-tone multi-segment scale (Fig.6). The segments corresponding
to the value exceeding the signal level threshold, are displayed in red. The unit may
simultaneously display three detected signals. Red lit symbol in the status bar is an
additional indication of detection. This will happen if the signal persists for the time set with
the submenu ("Log.." > "Min.duration."). This setting is the same for all characters (see
6.9).
Provided all standards and options, except analog signal search, are selected the total cycle time is 800ms.
While 40ms is service intercharge (keyboard and display). Analysis time for GSM 900, 1800 and 3G frequencies
is 40ms, for Wi-Fi and BLUETOOTH it equals to 150ms.
In order to increase the probability of detection, exclude unnecessary ranges.
In this mode the unit can work on schedule, automatically switching on, recording the detected signals and
switching off at a specified time. Activate this option by following these steps:
•Set the time in accordance with the "TABLE 4" in the "MENU" > "System ..." > "Time .." > "Set clock..".
When connected to a PC the time is set automatically using the "ST167Analyzer" application. When ST167 is
switched off, the settings will be reset.
Set the schedule in accordance with the "TABLE 4" in the "MENU" > "System ..." > "Time.." > "Schedule.".
In the upper right corner you will see the "scheduled operation" icon: .
