Satellite Phone Network

Satellite telephones are quite simply a life saving communication device that everyone needs when they are working or traveling through dangerous and inhospitable parts of the World. The news correspondents need them wherever they travel and travelers on land and sea would be altogether vulnerable without one. Marine Satellite Phones: If you have ever seen yachtsmen and women sailing the most barren and dangerous waters on the planet then you can imagine the benefits of satellite communications. If you are working single-handed then your satellite phone is all you have to communicate with the outside World. Even this has not been enough on a variety of occasions because the crafts are so far out that the emergency services have little chance of getting there even when time is so critical. Dealing with the World's No1 Company for satellite network coverage does come with a price so you will find that their tariffs are a little more expensive that Globalstar. Iridium offers a wide range of voice, data and messaging satellite facilities that have become very popular in the media, aviation, maritime, travel, disaster areas, mining and the oil and gas industries. If you need complete global coverage and don't mind spending a little more Iridium is the only choice. Vehicle Static Satellite Phones: If your intention is to travel into remote areas accompanied by a vehicle which will be with you at all times then a vehicle static would be the perfect solution. If you need to leave the vehicle for any length of time then this may not be the most suitable. If you need this independence away from the vehicle then I would suggest the handheld would be more apt. Satellite phones work on the same radio wave communication method as the common mobile phone. While mobile phones connect to an aerial mast conveniently placed by the telephone networks all over the country the satellite phones do exact the same except they work a little harder and have to go a little farther to make the connection. They are similar in size to terrestrial mobile phones of the past. LEO satellites orbit the earth at high speed, low altitude orbits with an orbital time of 70–90 minutes, an altitude of 640 to 1120 kilometres (400 to 700 miles), and supply coverage cells.

Satellite News: Subsynchronous orbit - A drift orbit close to but below GSO/GEO. The relatively clear line of sight between the satellites and receivers on the ground, combined with ever-improving electronics, allows satellite navigation systems to measure area to accuracies on the order of a few metres in real time.

GPS News: These effects are minimized when the satellite is directly overhead, and become greater for satellites nearer the horizon, since the signal is affected for a longer time. The most recent launch was on 17 November 2006.