Ability has developed advanced systems to cover satellite interception for major mobile satellite communication systems: Iridium and Thuraya .

The systems can be installed on various platforms, such as vehicles, vans, shelters, fixed installations, ships, helicopters etc.

They can be old either as takeout stand-alone tactical systems or as front-ends interconnected with larger criterion systems.

Characteristics
Vendor Intercept

Category Interceptors

Standart Iridium - Thuraya

Frequency L Band (1616 –

1626.5MHz)

Power source 250w standard

configuration

SMS(MMS) Yes

Antenna Single, Active, Omni

Directional Antenna

Q'ty of channels 32

Datacom Yes

Management Laptop

Range Downlink 2000 km, Uplink - 3-5 km

Shipment By mutual arrangement Weight 10 kg

Ability has developed advanced systems

to cover satellite interception for major mobile satellite

communication systems: Iridium and

Thuraya .

The systems can be installed on

various platforms, such as vehicles, vans, shelters, fixed

installations, ships, helicopters etc. They can be old either as takeout

stand-alone tactical systems or as front-ends interconnected with larger

criterion systems.

In component, Ability has formulated

SLIS - Satellite Line Interception Group for interception of circular and regional follower act operators

("Intelsat", "Eutelsat", "Arabsat", "Domsat", "Indosat", etc.)

including VSAT and DCME.

SISI is a unique system designed for

off?air interception of Iridium communication. The system intercepts

calls, SMS and data and allows localization of Iridium phones. The

Iridium is an advanced communication satellite network that covers the entire world without any

gaps; the Iridium uses communication to the handset and between the 66 satellite

constellations without need for ground hubs like other satellites, Iridium phone?to?phone calls do NOT touch earth and each phone has own number.

The Iridium uses one country code for all (8816) so no zones, no roaming rates and no long distance charges. The system includes a single computer unit (lunchbox computer) that includes all necessary modules (Down Converters, Digital Processing Processors, Database etc).

The computer is connected to the dedicated Iridium antenna for RF signal interception. SISI allows intercepting of entire Iridium traffic within operational range of the system. System intercepts both uplink and downlink and as such, both sides of the call can be monitored (depends on interception conditions). All intercepted sessions

and related data are stored in the system database for off line analysis and playback. SISI can be installed and operated in many types of configurations and environments (fixed 19” installation, remote control configuration, transportable cases, vehicular etc). Graphic User Interface of the system is very user?friendly. Positions of Iridium phones are displayed on the map. The SISI is state of the art design as it needs to overcome great challenges such as:

• Proprietary Iridium air interface

• Iridium authentication process (similar to GSM)

• Large, continually changing Doppler shifts

• Frequent inter?beam and inter-satellite handoffs

• Time?division multiplexed burst mode channels

• Complicated modulation, interleaving and coding

• Unique audio coding

System supports multi user site while the administrator defines the set of rules and

privileges of each operator. The following image presents the SISI standard configuration

The SISI provides the User with the following information about every call:

• Current Spot beam ID,

• Date and Time of Call

• IMEI, TMSI, IMSI

• Position of the handset

• Dialed number

• Size of intercepted file

• Type of session (data, SMS, voice)

Main specifications:
• Frequency coverage L Band (1616 – 1626.5MHz)

• Number of channels 32

• System output Voice, SMS in all languages and call related data

• Power consumption 250w standard configuration

• Antenna Single, Active, Omni Directional Antenna