1. Passive GSM 5.1 Monitoring System

2. Completely Passive Interception of:
Voice
SMS
Range of approximately
meters on the forward channel
20 km on the reverse channel.

3. 4 Hardware Components MPU or Main Processing Unit Receiver Box
5.1 Decoder Box
Antenna

4. MPU or Main Processing Unit
Standard “Lunchbox” style computer. Typically Acme brand. Standard Configuration is 32 channels, which allows for 192 calls at the same time.
The MPU is where you scan your surrounding BTS
The MPU is where you choose /set which BTS to monitor
The MPU is also where all data is stored and processed.

5. Receiver

6. The Receiver can be tuned for either of the below sets: 900/1800 mhz OR 850/1900 mhz

7. 5.1 Decoder

8. Decoder Speed 5.1 Decoder decodes the KC of the phone.
Decoders have different speeds.
The highest speed currently decodes at 0.7 seconds. This is the highest cost decoder as well. For speeds like 30 seconds, and 60 seconds, the price of the decoder will decrease.
>>> Several units can all be connected to the same decoder if you choose to.

9. Omni Directional Antenna
6dbi omni directional antenna allows you approximately meters on the reverse and up to 20 km on the forward channel.

10. Software:
Scan and Operator Selection

11. BTS After Scanning

12. DSP Setting Screen:

13. Main Screen:

14. Interception Screen

15. After Decoding Screen

16. GSM Player

17. BTS Analysis

18. Records After Decoding

19. BTS Tuning

20. Target Lists Screen

21. Target Definition Screen

22. Target Information on Target List Screen

23. Target Identity Table

24. Silent SMS to Target to Identify him

25. www.shieldsecurity.org m.pulera@shieldsecurity.org Maria Pulera