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Globalstar System Presentation. The Globalstar System. Globalstar is a satellite voice and data communications network based on a Low Earth Orbit (LEO) constellation of 40 operating satellites. How a call is managed. User or modem dials the desired number
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Globalstar System Presentation
The Globalstar System Globalstar is a satellite voice and data communications network based on a Low Earth Orbit (LEO) constellation of 40 operating satellites.
How a call is managed • User or modem dials the desired number • The call is routed to the nearest satellite overhead • The satellite then routes the call to the nearest ground station / gateway • The call is sent through the local terrestrial network to its final destination 3 2 1 4
Globalstar Communication reliability The Globalstar system is reliable; each terminal connects with up to three different satellite at the same time, automatically and continuously choosing the one with the better signal; this is valid for voice and data communications.
Globalstar Data Services The Globalstar Modem, is like any commercial standard modem, and can be integrated with any system that supports std Hayes AT commands. It permits Asynchronous and packet data communication at 9,6 Kbps uncompressed; specific software applications that are available may substantially increase data throughput
Tecnical characteristics Qualcomm GSP 1620 • Two modes of call set-up: • IP Packet Data over PPP • Asynchronous Circuit Switched Data • 9.6 kbps Full Duplex service rate • Utilizes Standard "Hayes Modem" AT Command • Compatible with Windows 95 / 98 / 2000 dial-up networking • Location determined with Globalstar satellites to within 10km, 95% confidence • Temperature: • Operating: -30 ºC to +60 ºC • Storage: -40 ºC to +85 ºC • Modem Dimensions: 190 x 75 x 17 mm • Modem Weight: < 180 grams • Antenna Dimensions: 103 (d) x 63 mm (h) • Antenna Weight: Estimated weight is less than 250 grams • Certification: FCC and CE • RF Power Output: 2 watt maimum (+33 dBm)
GSP 1600 Characteristics • Voice and data services (async and IP) • Technology: QUALCOMM Digital CDMA • Talk Time / Standby Time:3.5 hours talk time, 9 hours standby • Weight: 370 grams • Dimensions: 177 mm H x 57 mm W x 48 mm D
GCK 1410 Car Kit Features • Voice and data services • Hand-free in-vehicle operation • Modularized components with easy, ergonomic installation • Optional data cable connection • Roof-mounted, high gain Globalstar satellite antenna • GCK-1410 Car Kit Components • ODU (Outdoor Unit) • Globalstar Electronics Module (GEM) • Cradle • Hands-free microphone • Hands-free speaker
Globalstar Italian references The Globalstar Satellite communication has been chosen by many of the major Italian companies and organizations to operate as primary system in all those zones away from GSM coverage, and as a alternative system under GSM coverage, for providing the necessary voice and data communication. • ENEL (Italian electric utility) • 4000 handheld phones • 1000 fixed phones • 3452 data modems • ANAS (Italian National Road maintenance company) • 210 handheld phones • 22 fixed phones • SNAM GAS (part of ENI Group) • 170 handheld phones • 4 fixed phones • ITALIAN NAVY • 15 handheld phones • 100 fixed phones • ITALIAN DISASTER RELIEF ORGANIZATION • 89 handheld phones • 28 fixed phones
Ingen märkbar skillnad på kommunikations tid mellan GSM och Globalstar satellit. Lantmäteriet test
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