In 1949, the first car phone service was introduced. It was called "mobile telephone service (MTS). But at the beginning of wireless communication started many years earlier, in 1895, when an Italian physicist named Guglielmo Marconi successfully sent a wireless signal distance of a mile.
In 1896, Marconi received the first patent for the world system of wireless telegraphy. In 1897 he founded the Wireless Telegraph and Signal Company. That same year he successfully sent a wireless signal distance of twelve miles. In 1901 Marconi proved the curve on earth does not affect the successful transmission of radio waves. This was demonstrated by sending signals from Cornwall, St. John's, Newfoundland, which was a distance of more than two thousand kilometers.
Marconi, with other researchers and scientists continued to work and do research on wireless transmissions. In 1932, the first microwave radiotelephone connection has been established between the Pope's summer home in the Italian city of small wheels Gandolfo and Vatican City, a distance of about thirty miles. The first ship to country radio conversation took place in 1922 the SS America, which was 400 miles at sea inter-continental telephone calls between the U.S. and Britain took place in mid-1930.
Technology improved, interest in the car phone service developed. The first car phone service, which was submitted in 1949 was a mobile service, but the unit is big and heavy. Phone, a wide receiver (about the size of the bag). It's was added to the vehicle frame. You can talk on the phone, the button was pressed. Listen to another person, the button is released. It is similar to using a two-way radio. Person can not speak and listen simultaneously. This technology came later.
Calls the first mobile phone service is not directly called. Instead of bringing a mobile phone service company answered when the phone was taken. The operator connected the caller's telephone company operator, who then placed the call. Since 1960, early technology has improved, but only slightly. One step of the process was removed. The phone was able to connect directly to the phone company, saving the step of connecting the caller to a mobile operator first. improvement of service is called “Better for mobile telephone service” or IMTS.
Since the early 1980s had a capacity mobile full-duplex. This means that a person can listen and talk at the same time. The phones and receivers were still heavy even. And because the IMTS phones were a type of scan, it was not uncommon for a person to press a channel button on the phone and hear parts of someone else's conversation.
Technology has continued to improve and continually improving today. Mobile phones are very popular. Today, they are actually on the mobile device and is easily transported. Some mobile phones available today only weigh a few ounces. Some small mobile phones can be complicated to use because the keys are very small though.
cell technology continues to improve. In the U.S., airlines have gone from analogue to digital technology. One major reason for the switchover has been done in recent years because it allows the network to several calls at once. Calls are also more secure digital networks, but is still far from certain.
Today, people experience fewer dropped calls, with an expansion of the network is becoming less areas where there is no reception at all. And although many young people choose to have the phone on a landline, there are still many people who are not yet ready to give up their landline phone.
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