==== ====Do you like to watch Satellite Tv on your PC ? Here is the right Softwarehttp://4132dswkk3z3y18k9intqo8y03.hop.clickbank.net/==== ====Geostationary satellite phones versus civilian use satellite phonesAlthough satellite telephones can be used for geostationary orbit connecting the whole world withonly three or four satellites, the most popular civilian system is Inmarsat. Geostationary satellitephone requires a large antenna system for signal receipt and transmission. This makes the entiresystem inconveniently large and affects mobility and ease of use, quite adversely. Civilian satellitephones such Inmarsat, is quite handy to use and does not require such a large system of antenna.However, every satellite hand held phone system suffers from a big disadvantage that they need aclear link with the sky and are unusable inside a building. Here the requirement will be that ofexternal antenna and it makes the whole process quite cumbersome and costly too.Satellite phones using Low Earth Orbit technologyThese satellite phones have the rare advantage of covering the world without wire and without anygaps. Low Earth Orbit satellites go round the earth at a very high speed but at lower altitude withan orbital time of around 90 minutes. The altitude at which these satellites move are somewherebetween 600 to 1,150 Kms. The original two LEO systems are Iridium and Gobalstar could notbecome popular.Satellite phones modelsSatellite phones have been quite popular in films and stage shows. They are available in variousmodels and come from divergent brands. The most popular ones are Globalstar, Iridium, andInmarsat. A prospective user need not always purchase one since satellite phones on rental arealso available. Satellite phones can also be purchased by ordering online. Most of the providersalso have the system of same day delivery or door delivery, as preferred by the customers. Inaddition they offer attractive plans to gain customer support like no deposits, an extra free battery,and unlimited use with no bundled minutes, fastest shipping, and many more. An example is theInternational Cell Phone rental package offered by some, that provides connectivity to 130countries with pulse rate payment ranging from 89 cents to $1.69.Transition from commercial to consumer useAt the start of the millennium, satellite phones were yet to make a big headway and most of theproviders were struggling for self-sufficiency. The most pertinent reason behind such a state ofaffairs was the high payable cost and high payable pulse rate. For example the Globalstarhandheld phone cost around $1,200 and the pulse rate payable was $2.49 per minute. Inmarsatwas also providing a bulky suitcase set at $3,000 to $10,000. Therefore, initially the users ofsatellite phones were the Government and big business houses. They used the satellite phone
services to approach remote areas having none other means of communication. Even the rentalcharges in 2001 were an unfriendly $159 per week with call charges at $3.99 per minute.However, over the past five years there has been a sea change in this area. The first popularservice of satellite phone system was provided by Iridum with a cost of $1,995 or the same wasavailable on rent at $19.99 per month. The pulse rate payment was a reasonable $1.99 and theserates were much lower than earlier rates charged for satellite phones.The initial steps in transition from commercial to consumer based satellite phones took place in2001 with the launching of Iridium World Data Services. It provided for dial up throughput of 2.4kbps and direct Internet data throughput at about 10 kbps. A package with a pulse rate paymentof 99 cents per minute was also introduced. And the most important addition was the prepaidphone service at an average pulse rate of $1.09 per minute. The satellite phone service, originallyopened for Government only, has now become open to the private customers. Today, providerslike Globalstar has reduced the satellite phone costs by 80% of its cost in 2001.The user scenarioHowever, the largest user till date of satellite phones is the Military. Today, Globalstar provideshandheld satellite phone at $645, and sets are available at a lower price of $599. The 2006Inmarsat has voice and high speed data service. But the cost is higher at $1,650, with theadvantage that it provides for BGAN services not available till now. This technology eliminates thenecessity to use terminals that earlier cost a customer nearly $8,000. The advantage of thistechnology is clear digital voice and high speed data transfer. Gradually, the popularity of satellitephones started increasing and the average revenue collection marked at 30% increase for theindustries involved. With a 60% downfall in the rentals for satellite phones, the consumer strengthhas multiplied into virtual millions. The growing consciousness among prospective customersabout the ease of transmission of data and voice through the satellite service has resulted infurther growth of the satellite phones industry in the United States. The growth has been indicatingan upward trend for last five years.Dawn of a new era in wireless communicationsRecently the Federal Communications Commission (FCC), has granted authority to offer ancillaryterrestrial component services (ATC) in favor of Globalstar. As a result, the Globalstar is eligibleto set up ATC base stations and mobile terminals. Globalstar today provides a small lightweightdual mode handset with both satellite and ATC modes. It uses 11 MHZ of its 1.6 /2.4 GHz satelliteradio frequencies for the terrestrial wireless service. The advantage is that this allows the phoneto work in dual mode. Inside a vehicle the phone set will work in ATC or terrestrial mode andoutside it will work in satellite mode. The first modified dual mode demonstration was made in NewYork in 2002. Even when the local telephone infrastructure stands disrupted, the satellite phonesystem can provide seamless communications. However, the Globalstar satellite phone system isnot without limitations. It cannot be used like a common cellular phone in a building or in avehicle. The inventors are now in search of a handheld phone that has no dead spots and workseverywhere. Another requirement in present day circumstances is adding broadband data andmulti media applications to seamless strata of wireless communication. However, that is in adistant future, while the current satellite phone service has to be used outdoors with at least 80%view of the sky or using an external antenna.
Use of satellite telephone different from each otherOrdinarily you require the same type of satellite phones in entire group to communicate properly.There can be no use of two types of satellite phones in part. Otherwise the system ofcommunication would be in a round about way. For example calling a Globalstar phone from anIridium phone will sent the call to first the Iridium constellation and then to an Iridium gateway.Then it will go through a land line to the Globalstar gateway. Sometimes the required gatewaygets disrupted and difficulties are experienced in communication. Globalstar has a constellation of48 Low Earth Orbiting satellites. It covers 120 countries and has the one of the best transmissionquality. Iridium has a constellation of 66 Low Earth Orbiting satellites and a planetary coverage.The Inmarsat use portable terminals with Geo-stationary satellites. This set up is quite simple anduser friendly.Satellite phones for emergenciesIn these days of hurricanes, terrorism, and power failure, everyone should be in readiness toaddress any unforeseen emergencies. The preparedness is most essential since the local phoneshave a tendency to die down just when needed most in an emergency. There is no such problemwith satellite phones. Satellite telephones are not subject to vagaries of nature and can be usedany time any where with ease and this may have a real value during the worst of emergencies.Satellite phone rental, satellite phone sales. When you need to communicate where cell phonesdont reach call us for details on satellite phones. Our satellite phones have SIM CARDS alreadyinstalled. Instantly the phone is able to communicate and the SIM CARD also holds the telephonenumber and all the brains. Rates can be extremely low using this system. For example FREEINCOMING from all countries day and night, always. Need a regular CELL PHONE instead of asatellite phone? We have them and the service for more than 160 countries on earth. 99% of allour sim cards offer FREE INCOMING CALLS from all countries, always. Rates, for example, fromthe UK to the USA US$0.08 per minute. No subscriptions, No contracts, no credit card checks, nobills. Pre-paid always means no minimums no contracts, no obligations. You only pay for the callsmade. You can buy factory unlocked satellite and GSM phones and sim cards fromhttp://www.planetomni.com Tel. # 800-815-9380Article Source:http://EzineArticles.com/?expert=John_Dulaney==== ====
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