ST Group PIRANHA ST 500, Руководство пользователя

Страница: 63 / 88

ST 500 "Piranha" Operation Manual: Use Guidelines
62
9.1.3. SEARCH IN THE "WIRELESS COMMUNICATION" MODE
In the "WIRELESS COMMUNICATION" mode, the frequency bands that meet a specific digital
communication standard and are used by eavesdropping devices are monitored. When searching
for eavesdropping devices, three functions are used:
1. "Mobile devices monitoring" (3.4.1)
2. "Base stations monitoring" (3.4.2)
3. "User list" (3.4.3)
Factory settings of the "WIRELESS COMMUNICATION" mode:
MOBILE DEVICES Frequency range, MHz
CDMA450 453 458
GSM900 899.5 915
GSM1800 1710 1785
3G 1920 1980
3G low 2010 2025
DECT 1880 1900
WiFi/BT 2400 2480
4G/LTE 2500 2700
WiFi 5 5200 5800
BASE STATIONS Frequency range, MHz
CDMA450 463 468
GSM900 935 960
GSM1800 1805 1880
3G 2110 2170
3G low 2010 2025
DECT 1880 1900
USER LIST Frequency range, MHz
---- 88 108
---- 430 450
Using the ST 500 software, bands can be added to, or removed from the user list, as well as
the lists of mobile device and base station frequencies, and band parameters can adjusted.
The search procedure
is the same for all functions of the
"WIRELESS COMMUNICATION"
mode:
1. In the checked room:
 connect the antenna and headphones to the main unit of ST 500
 turn on the test sound source and adjust the sound volume (only when using "USER LIST")
 turn on ST 500
2. Activate "SELECTIVE HF DETECTOR" channel.
3. Depending on the activity in the frequency range, set the optimal gain, making sure that
no off-scale occurs.
4. Turn on "WIRELESS COMMUNICATION" mode
5. Activate one of the functions ("Base stations monitoring", "Mobile devices monitoring",
"User lists").