Home Brew StarTrek Communicator
OpenMoko at mauve.plus.com
Sun Jun 17 16:39:04 CEST 2007
Emre Turkay wrote:
> On 6/12/07, Ian Stirling <OpenMoko at mauve.plus.com> wrote:
>> Using really good coding, in good channel conditions, you may get 20
>> megabytes a second.
> Actually 10 MBits/sec = 1.25 MBytes/sec
However, in good channel conditions, you can squeeze extra bits into
each signal period.
For example, '56K' modems put 7 bits into each signal period.
Common wifi implementations rarely use only one bit per signal period.
As the channel noise rises, the number of bits you can fit in to the
signal period drops.
As an extreme case, for example, GPS has a 50 bits/second datarate, and
a signal rate of 1Mhz.
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