Technical description and operating manual ST 167 and ST167W5
24
Select, in manual mode, «W» and 2.4GHz frequency range. On display (Fig.32)
signal level with maximum value is indicated (result of subsequent channles scanning).
This level can be a sum of several signals from:
WLAN routers/access points
RD
BLUETOOTH connection in data receive-transition mode (see BLUETOOTH)
Radio emitting devices of other standards, for example from information retrieval
devices with transmitting frequency of 2.4GHz.
Go to 5GHz range (deactivated by default). For activating go to MENU – RANGE -
2.4 and 5 GHz – WLAN 5. For information output in this frequency range press
button. Returning to 2.4GHz – press
.
If signal level in both ranges is close to -70dB and lower, it means that there are no any “usual” access
points and RD connected to them in a radius of 20m (inside the house in a urban conditions).
Additionally, control signal level in other territory points. If when approaching to a wall signal level is
slightly increases – it means that there are Wi FI device in adjoining room, if increase is sharp – more than 10dB,
presence of radio transmitting devices is possible as well on a territory, as and directly behind the wall. Source
of this signals can be low-power device, using WI FI or other radio standards, including BLUETOOTH.
By pressing button
to visible 2.4 and 5 GHz ranges spectrogram indication
can be done. This will allow to estimate total amount of used channels (fig.34). Transition
to total indication is done by second press of
button. In a lower line Value of central
frequency (in MHz), channel with max level (-2462MHz on fig. 38), numerical value of
maximum level signal (-30dB) and noise level (-82) is indicated.
ST167 is able to work with each channel individually. It is made by pressing
, as from the total signal level indication (fig.32) as from spectrogram indication (fig.34).
Transition back to total indication – second pressing of
.
In both cases transition to signal level indication will be done on channel with maximum
signal level (fig.35).
Subsequent channel selection is done by
.
2 method
Place ST167 as close as possible to the visitors on condition of visual contact with ST167 display or
working with ST167Analyzer software – Screen of Windows PC/Tablet/Smartphone
If possible, place “your” routers, WLAN video cameras as far from ST167 as possible (or disable them).
In “AUTO” mode select only “W”.
Set threshold 5dB higher than displayed signal level. Turn off sound if needed.
3 method
In “AUTO” mode select only “W”
Set threshold 5dB higher then displayed signal level.
Turn on permission for event log record (see 6.6)
Fig.34
Fig.32
Fig.35
Fig.33
