Morpheus005 wrote:
Raijun wrote:
aegir wrote:
Raijun wrote:
Morpheus005 wrote:
the 700 MHz blocks are called '' gold frequencies '' because they carry farther than the 1 800 and 2 600 MHz, while penetrating more inside the buildings. This allows operators to cover an area more quickly, with fewer antennas.
I believe that is why TNT has to clear this frequency …..
frequencies is a bit like the oil of telephones …. !!!
Indeed 700Mhz allow a greater coverage and cross better the walls but on the other hand, the theoretical flows will be lower than the high frequencies. It is likely that 5G will not use the 700 MHz band. This may be partly why the operators do not use the 700 MHz.
Uh no the theoretical flows have nothing to do with the frequency. They have to do with the bandwidth.
10 MHz of bandwidth in the 700 MHz band gives exactly the same theoretical bit rate as 10 MHz in the 2600 MHz band.
If the other operators do not deploy 700 MHz it is mainly because they have 10 MHz of spectrum in the 800 MHz band that they have already started to deploy.
Physically, high frequency waves have a speed of propagation in the air higher than low frequency waves. If NASA takes 3 days to download an image from one of their satellites in space, it is because the waves are too slow. Another example, if the visible light is so fast, it is because it is a very very high frequency wave.
And since you are talking about bandwidth, the high frequencies allow, clearly, a greater bandwidth than the operators could share.
Anyway, a Wikipedia article will explain it better than I do. And so I confirm again, yes, the high frequencies allow higher throughput.
What explains these differences in bitrate? Technically, it is the frequency band used to generate and propagate the signals (waves) over the copper pair that will define the limits. The wider the frequency band, the more high frequency it includes and the higher the achievable bit rate. However, the higher the frequencies, the more they are affected by the distance which has a strong impact on the flow. Using a wide frequency band makes it possible to offer better data rates provided that the customer is not too far from the NRA (less than 1.2Km).
https://www.ovhtelecom.fr/vdsl/tres-haut-debit.xml
Yes, the further you go from a transmitter, the more the flow drops, it is also true for low frequencies, even if they have a wider door.
The higher the propagation speed, the more information can be obtained in one second, we agree? The faster a diode flashes (in an optical fiber, for example), the more information is obtained in one The more oscillation in a meter wave, the more information.
Example imag: A Ferrari goes from point A to point B, it will surely take less time than a bus which will run slowly but the latter will have brought back more packets. Here the bus = bandwidth and the Ferrari = only one frequency but a high frequency.
In addition with frequencies in the 10Ghz, the 4 current operators can each have 250Mhz while currently with their 700Mhz, they are fighting to have 25Mhz. But they are all too lazy to install new antennas so they are content with low frequencies.
