Technical description and operating manual ST 167 and ST167W5
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If the value does not exceed 250 conventional units (about 5 seconds), then the
signal will be adopted for SMS or GPRS message, and is recorded in the bottom of the
screen (Figure 21). If the duration of the signal is greater than this number, it will be
classified as to the talks or transfer of streaming data, and at the end of the radiation will
not be recorded in the memory of the product.
The number of simultaneously displayed on the screen SMS- three. Additionally, in
the upper left corner of the screen displays the counter SMS. It displays the total number
of detected SMS - up to 999
During the operation in this mode threshold set up is important. It is desirable to set the maximum possible
threshold level (lowest sensitivity). It will prevent message detection from distant sources and will reduce possibility
of close signals masking (if, for example, new signal will be detected in 15 sec interval)
For threshold level estimation place ST167 on a board line of the controlled territory and send an SMS
message from its center. Control level and frequency range of received signal («-36» and «900» on fig.21). Set
threshold level value 5dB lower- «-41» in this case. For other frequency ranges «1800» и «3G» other threshold level
might be needed.
Threshold level set up is done in MENU- «Threshold..» and choosing of needed standard.
6.8 WORKING IN «WiFi» MODE (only for ST16W5)
Entering this mode is done by selecting «WiFi» line in MENU.
After Wi-Fi network selection, by pressing
button, «Searching for Wi-Fi
networks…» inscription will appear. When the search is over «No networks found with
given threshold» or list of detected networks.
Network detection threshold is set in MENU: «Threshold..» - «2.4GHz» - «Wi-Fi
networks ».
Networks list example (Wireless Access Point- WAP) is shown on fig.22. Here, in first line, network name
(Linet) is shown, then signal level “-54” (in dBm) from WAP and last digit – channel number “1”. For 2.4GHz range
channels number is 13 (1-13). For 5GHz range - 36, 40, 44, 48, 52, 56, 60, 64, 100, 104, 108, 112, 116, 120, 124,
128, 132, 136, 140, 149, 153, 157, 161,165.
Network list, by default, updating with periodicity of 1 time in 4 sec. Forced update is done by pressing
button.
For selecting WAP press
and select by pressing
and
buttons.
If number of detected networks is more then 8 (8 lines fit in window), then view of other
networks is done by sequent pressing on
button.
Three types of line color is available:
Black – color of all detected WAP with selection of this mode (first cycle).
Red – new WAP appeared with level, exceeding the threshold, given in MENU.
Countdown starting point is moment of selection of this mode.
When new WAP detected, network list update stops and information on screen
«freezes». It is done for showing even short time WAP appearance.
Resume update - click on
.
Fig. 21
Fig.22
Fig.23
Fig.24
