Jul 17, 2022
In General Discussions
The cell phone network apparently ends there. The network Phone Number List operates on the principle of 'line of sight', so that the towers, set up for cellular communication, must be able to see each other. Within each cell the communication is limited to Phone Number List about 31 miles, as the crow flies. Communication difficulties arise in places where the tower of the cell that you have just left cannot properly see the tower of your present cell zone. This Phone Number List creates dropped calls or breaking up of voices. There are ofcourse other reasons for such happenings. Satellite phones do not have such restrictions, except it Phone Number List needs either the clear view of the sky or an external antenna to operate. When you switch on your satellite phone, the signal goes up to the satellites and gets hooked on to that particular one or a set of satellites, with which you are registered. When making a call, the coverage that your call Phone Number List should have, is determined and its relayed from one satellite to the other. On reaching the destination, the signal is directed to the relevant Earth station, from where it is directed by Phone Number List the gateway the to the call destination. If you should be calling a satellite phone from your mobile, a reverse action takes place. The gateway processes the call and switches Phone Number List the call information. If you should be calling another compatible satellite phone from yours, your call information is sent up to the satellites, which is then transmitted to the Earth station. In turn Phone Number List the Earth station transmits it back to the satellites and then connects you to the called satellite phone. Satellite telephony is becoming more and more necessary with the radio frequency Phone Number List bandwidths getting exhausted and also that he cable lines cannot be fixed to all the parts of the earth.