Something about 3.5G and 4G Mobile Generations from Frod Kelin's blog


If you are an active mobile phone user you probably know that there is a really wide variety of methods major mobile carriers use to promote a new mobile communications standard and advertisers rarely study the technical side of that standard. That's why they always call a new standard of mobile communications a new generation. We in Jammer-buy  want to explain the mobile generations.

We often face pretty unknown mobile generations, 3.5G for example. In a matter of fact even a 3G is a simple slogan that was created for promotion a technology that was simply faster than 2G. In the meantime, 2G has its own divisions, which were created by promoters as new standards were introduced in a second generation. They are 2.5G that emerged when the GPRS technology was presented and 2.75 or 2.9G for promoting EDGE standard. But nevertheless all those 2.5 and 2.9G were the second generation.

So 3G evolved into HSDPA (High-Speed Downlink Packet Access), HSPA, or 3.5G, which is up to five times faster than 3G. Predictably enough, 4G networks are now commonplace, based on technologies called Mobile WiMAX and LTE (Long-Term Evolution). 5G is already in development and expected to become available around 2020.

If you need to use broadband on the move, it's a brilliant solution. Anywhere you can get a good (3.5G or 4G) signal, you can get high-speed broadband.

The drawback is that you're using a cellphone network for your access, so the quality of your connection can vary drastically. If you're working on a train, for example, you can expect to be regularly connected and disconnected as you move in and out of cell coverage—just as a cellphone call gets cut off when you go through tunnels and under bridges. Right now, I seem to be working on the edge of a cell, so the quality of my connection is constantly flickering between 3.5G and 3G and my connection speed is varying from moment to moment. 

But regardless the 3G is rather popular among not only smartphone users. That generation is frequently used in hidden video surveillance, because data transmission speeds allow to stream video in real time and low energy consumption will ensure that a hidden wireless camera will work longer. That's the main reason of the growing popularity of gsm signal blockers.

Android based smartphones display H with a 3G icon in a status bar, when connected to a 3G network. The reason is that Android devices can distinct a common 3G network form its more advanced superstructures. The H letter is diplayed in the status bar when the data transmission speed in the network is 2-15 Mbit/s. We should also mention that 3.5G is actually a brand name for all the superstructures of 3G.

Another interesting fact is that the LTE standard, that is associated with a fourth generation of mobile communications is actually still closer to 3G. LTE failed to meet the ITC's expectations and that's why it is still 3G, but much more advanced. They even use different frequencies, while 3G works with 2000-2100 MHz, LTE uses 875 MHz, though those frequencies may vary depending on the country and the carrier. That LTE standard is used not only for mobile Internet access, but for hidden video surveillance too. Such hidden cameras are still very expensive and rare, but they are the most reliable way for hidden video surveillance. That's why we've made our best to create an LTE  cell phone jammer that is compatible with all the previous mobile generation and standards.


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