advantages and disadvantages
Second generation was launched in Finland in the year 1991 , All phone conversations are digitally encrypted , 2G networks are more efficient on the spectrum , They can allow far greater mobile phone penetration levels and 2G introduced data services for mobile , starting with SMS text messages .
2G technology is more efficient , 2G network holds sufficient security for both the sender the receiver , All text messages are digitally encrypted , custodia cover huawei p8 lite This digital encryption allows for the transfer of data in such a way that only puro mirror cover iphone 5 the intended receiver can receive read it , These digital signals consume less battery power , so , it one direction cover iphone 4s helps in saving the battery of mobiles .
2G Technologies ( second generation technologies ) are either time division multiple access (TDMA) or code division multiple access (CDMA) , TDMA allows for the division of signal into time slots , CDMA allocates each user the special code to communicate over cover marcelo burlon iphone xr a multiplex physical channel .
Interim standard 95 is a first the foremost CDMA cellular technology , It is most famous by its brand name known as cdmaOne , It makes use of the CDMA to transfer the voice signals data signals from cellular phones to cell sites ( cell sites is cellular network ) .
The digital systems were designed to custodia gorilla samsung emit less radio power from the handsets , This meant that the cells had to be smaller , so more cells had to be placed in the same amount of space , This was possible because the cell towers related equipment had become less expensive .
2G technology advantages
2G technology is useful to both the users the network operators at custodia iphone vans the same time creare cover iphone 6s , Digital systems are embraced by the consumers for many reasons , The lower powered radio custodia cover samsung s7 signals require less battery power , so , The phones last longer between the charges the batteries can be smaller .
2G technology offers improved privacy that was not possible with the earlier technologies cover iphone 6 plus silicone ebay , custodia iphone 12 2G phones are more private than 1G phones which have no protection whatsoever against eavesdropping , The digital cellular calls are harder to eavesdrop on by use of the radio scanners , While the security algorithms used have proved not to be as secure as initially advertised .
The digital calls tend to be free of static background noise , custodia samsung s9 The digital signals require custodia cover iphone 11 pro very little battery power , The mobile phone connections cover samsung a3 2016 trasparente in different countries of the world are based on digital signals and 2g technology .
The mobile batteries can last longer as the digital signals consume less battery power , so , They help the mobile batteries to last long ,The digital coding reduces the noise in the line , thus improving the voice clarity and the digital signals are considered environment friendly .
From the other advantages of 2g technologies is that the lower power emissions have helped in dealing with health concerns , Nobody wants any unforeseen health concerns arising due to the use of any technology .
2G technology introduces the digital data services such as SMS email that has allowed custodia iphone 6 con memoria the world to shrink come closer , You can not have two or more cloned handsets having the same phone number , under 2G technologies , This has helped in reducing any chances of fraud to a minimum .
The weaker digital signal transmitted by the cellular phone can not be sufficient cover batteria iphone 7 plus to reach the cell tower in less populous areas , It causes a particular problem on 2G systems deployed on higher frequencies , but is mostly not a cover gommose iphone 6 problem on 2G systems deployed on lower frequencies , The national regulations differ greatly among the countries which dictate where 2G can be deployed .
The digital signal has jagged decay curve , unlike the Analog that has cover iphone se puro a smooth decay cover iphone con scritte curve , Under unfavorable conditions , The digital will have occasional dropouts and may fail completely if the conditions worsen , As custodia cover samsung a50 distance increases , The analog reception degrades gradually , cover samsung but digital reception abruptly transitions from custodia iphone xr bianca clear reception to no reception .
The digital will start to completely fail , by dropping calls or being unintelligible , while analog slowly gets worse , generally holding a call longer and allowing at least some of the audio transmitted to be understood .
Although the digital calls are free of static background noise , the use of lossy compression by the codecs takes a toll and the range of sound that they transmit is reduced , You may hear less of the tonality of someone voice talking on the digital cellphone .
The pulse nature of TDMA transmission used interferes with some electronics , such as certain audio amplifiers , cover samsung s10 Because the intellectual property is concerted among a few industry members , It can create the obstacles for new entrants and it limits the competition among the phone manufacturers .
2G is less compatible with the smartphones functions , Data transmission speed can be more than 4 million bits per sec in 3G technology but it is less than 50,000 bits per sec in 2G network , GSM offers a fixed maximum cell site range of 35 km which is imposed by the technical limitations .
One could have cover samsung galaxy s4 mini i9190 a cover iphone 5s in vendita backup handset in case custodia cover huawei mate 10 of damage or loss , a permanently installed handset in a car or remote workshop and so on , custodia iphone xs With digital systems , this is no longer possible , unless the two handsets are never turned on simultaneously .
The downloading uploading speeds available in 2G technologies are up to 236 Kbps ,
