Passive GSM 5.1 Monitoring System

Completely Passive Interception of:

• Voice• SMS

Range of approximately 500-1000 meters on the forward channel

20 km on the reverse channel.

4 Hardware Components

1. MPU or Main Processing Unit2. Receiver Box3. 5.1 Decoder Box4. Antenna

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 BTSThe MPU is where you choose /set which BTS to monitorThe MPU is also where all data is stored and processed.

Receiver

The Receiver can be tuned for either of the below sets:

900/1800 mhz

OR

850/1900 mhz

5.1 Decoder

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.

Omni Directional Antenna

6dbi omni directional antenna allows you approximately 300-500 meters on the reverse and up to 20 km on the forward channel.

Software:

• Scan and Operator Selection

BTS After Scanning

• DSP Setting Screen:

• Main Screen:

• Interception Screen

After Decoding Screen

GSM Player

BTS Analysis

Records After Decoding

BTS Tuning

Target Lists Screen

Target Definition Screen

Target Information on Target List Screen

Target Identity Table

Silent SMS to Target to Identify him

www.shieldsecurity.orgm.pulera@shieldsecurity.orgMaria Pulera