Re:The Sounds of Dialup Modems and Related Equipment (2014)
by Animats on Saturday March 26, 2016 @01:49AM
(#11364621)
The double "bong" note used to probe the line properties before the high rate modulation starts was deliberately designed to sound good.
It's amazing that analog modems eventually reached 100% of the bandwidth of the digital network used for analog transmission, at least in one direction.
Once data is really moving, it sounds like noise, of course. If it didn't, there would be wasted bandwidth not carrying data. Analog radio and TV waste about 80% of the transmitted power on the carrier. When TV went digital, broadcast station power, and power bills, went way down.
It's amazing that analog modems eventually reached 100% of the bandwidth of the digital network used for analog transmission, at least in one direction.
Once data is really moving, it sounds like noise, of course. If it didn't, there would be wasted bandwidth not carrying data. Analog radio and TV waste about 80% of the transmitted power on the carrier. When TV went digital, broadcast station power, and power bills, went way down.