SKANTI_Scansat_F77_Operators_Manual.pdf

When you dial a inmarsat fleet terminal through the

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When you dial a Inmarsat Fleet terminal through the public network, you have to dial the IMN number in addition to the international access code for Inmarsat, e.g.: +870 600 555 555 Making calls from a Inmarsat Fleet terminal is equal to making international calls as the country code always has to be dialed. Service explanation: The mini-M services have a lower tariff than the high speed services, as these are high quality audio or high speed data services and thus require more bandwidth. The 64 kbit/s UDI (Unrestricted Digital Information) service enables the bi-directional transmission of data to and from terrestrial 64 kbit/s ISDN networks. The 56 kbit/s UDI service is similarly used to make a connection to 56 kbit/s ISDN networks, which are primarily used in North America. The Speech and 3.1 kHz audio services make it possible to establish high quality analogue connections with quality equal to terrestrial analogue connections via digital
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The Inmarsat Fleet Service Introduction Jul 2002 7 2 networks/switches. The Speech service is used for high quality voice connections, whereas 3.1 kHz audio can be used to transfer analogue signals between fax machines and modems with an analogue 2-wire interface. The 3.1 kHz audio service is transparent, and is suitable for all analogue applications including secure telephones. The MPDS service is a packet data service where the tariff depends on the amount of data transmitted. This service is a more cost-effective solution for web browsing, and other applications where there is no need for constant transmission of data in both directions. It is also suitable for applications where a constant connection is required, because the user is no longer charged the “per minute rate”. The mini-M voice service is only for voice transmission. The voice transmitted over the satellite is subject to a compression process down to 4.8 kbit/s, which reduces the bandwidth use and subsequently the cost.
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Introduction The Capsat Fleet 77 system 8 Jul 2002 2 2.3 The Capsat Fleet 77 system The Capsat® Fleet77 System includes the following system components: TT-3008C Capsat® Fleet77 Antenna (ADU) TT-3038C Capsat® Fleet77 Electronics Unit (BDU) TT-3622B Capsat® Fleet77 Distress Cradle TT-3620F Capsat® Fleet77 Control Handset (4 wire) Accessories (manual, software, etc.) Instructions on how to assemble the system, wiring and specification, can be found in the Installation Manual.
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The Capsat Fleet 77 system Introduction Jul 2002 9 2 TT-3008C Antenna The TT-3008C antenna or ADU (Above D eck U nit) is a stabilized high-gain antenna. The antenna has built-in all functions for satellite tracking including a GPS system. TT-3038C Electronics Unit On the rear of the Electronics Unit or BDU (Below D eck Unit) is located all the interface connectors and on the front a configuration module.
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