Up until just over a years ago, the whole world was still utilizing analogue radios, limited to signal energy alters and a host of other problems in communication. The fast communication we've today is because a desperate search for an easy method to communicate than analogue, and a lot of technological advancement must be done to get us until now. By creating our own larger ranges of frequencies, we've improved the way the world communicates, with more improvements on the horizon. To understand how we reached this point, it could help to understand the way we were.
Signal Transmission And Analogue Radios
For many years, the world utilized analogue transmissions as the preferential way of sending as well as receiving telecommunication signals. Sent in the form of sound waves, the transmission can be copied continuously until it was picked up by some sort of receiver, like analogue radios. Such transmissions were limited to one wave per channel, and if the channels became flooded with such transmissions, millions of and if the channels became possibly be lost with out knowing it.
As demand rose for better communication possibilities, technology had to be first developed to handle it all. Thanks to the quest to improve or replace analogue radios, televisions and also telephones, other innovations were produced or improved, having some of the pressure off. This is how cellphones came about, as well as the higher velocity bandwidths utilized in computer communications.
The Main Problem With Analogue Communication
Because analogue radios and other devices were still determined by those sound wave transmissions to communicate, the next step was a search for a way to overcome the main problem of analogue communication: quality. When a sound wave is transmitted, it simply duplicates the original transmission over and over, until it reaches a receiver. In the period of time before reaching that receiver, it's continually growing it's signal strength, kind of like a tidal wave grows signal strength en route.
As the signal strength grows, so does the possibility that static and other sounds can be pulled along with the repeating wave. By the time that wave would reach analogue radios or other receivers, it could have become so garbled with other sounds that the original message is now lost. A way must be found to strengthen the signal for transmission, while filtering outexcess noise en route. The first location they looked to was digital communication, currently limited to computer signals.
The Conversion To Digital
When they began looking at the technology behind computer communications, it was found that a crucial factor in the clarity of this format was the digital conversion of data prior to transmission. When tested using analogue radios, the conversion of each sound to its binary format had improved the quality of the sound that was received, and the degree of static noise had been dropped quite a bit.
The drive was on to develop the technology to fine tune the system for world-wide communication. When done, converters were developed to help change the analogue signals in to digital format, help growing the number of communication channels for transmission. Unfortunately, this also meant the end of utilizing analogue radios, they also still have an vital part in the history of digital communication.
