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The key difference is that what is typically considered a broadband signal in this sense is a signal that occupies multiple (non-masking, orthogonal) passbands, thus allowing for much higher throughput over a single medium but with additional complexity in the transmitter/receiver circuitry.
The term became popularized through the 1990s as a marketing term for Internet access that was faster than dialup access, the original Internet access technology, which was limited to 56 kbit/s. This meaning is only distantly related to its original technical meaningThe sarangi is a folk Nepalese string instrument. Traditional Nepali sarangi are made up of a single piece of wood having a neck and hollowed-out double-chambered body; they are often made from a very light wood called khiro. The lower opening is then covered up with dried sheep-skin upon which the bridge rests, while the upper chamber is left open. The neck is fretless, and the strings are tuned with the kunti.
The original strings were made out of sheep intestine, similar to the use of catgut (made from the intestines of cattle) in violins. The village people allotted intestines of sheep, sacrificed during major festivals like Dasain, to the Gandarvas. The Gandarvas left the intestine in a pot for some days. Once the meat was fully rotten, it was pulled out, leaving behind the fine nerves of the intestine which were then woven to get the strings, which produced fine quality sound.[4] However these days, readily available nylon and steel strings have generally reDifferent criteria for "broad" have been applied in different contexts and at different times. Its origin is in physics, acoustics, and radio systems engineering, where it had been used with a meaning similar to "wideband".[1][2] Later, with the advent of digital telecommunications, the term was mainly used for transmission over multiple channels. Whereas a passband signal is also modulated so that it occupies higher frequencies (compared to a baseband signal which is bound to the lowest end of the spectrum, see line coding), it is still occupying a single channel. The key difference is that what is typically considered a broadband signal in this sense is a signal that occupies multiple (non-masking, orthogonal) passbands, thus allowing for much higher throughput over a single medium but with additional complexity in the transmitter/receiver circuitry. The term became popularized through the 1990s as a marketing term for Internet access that was faster than dialup access, the original Internet access technology, which was limited to 56 kbit/s. This meaning is only distantly related to its original technical meaningThe sarangi is a folk Nepalese string instrument. Traditional Nepali sarangi are made up of a single piece of wood having a neck and hollowed-out double-chambered body; they are often made from a very light wood called khiro. The lower opening is then covered up with dried sheep-skin upon which the bridge rests, while the upper chamber is left open. The neck is fretless, and the strings are tuned with the kunti. The original strings were made out of sheep intestine, similar to the use of catgut (made from the intestines of cattle) in violins. The village people allotted intestines of sheep, sacrificed during major festivals like Dasain, to the Gandarvas. The Gandarvas left the intestine in a pot for some days. Once the meat was fully rotten, it was pulled out, leaving behind the fine nerves of the intestine which were then woven to get the strings, which produced fine quality sound.[4] However these days, readily available nylon and steel strings have generally replaced gut strings.placed gut strings.
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