[H-GEN] Bigpond Advance (cable)

[Byron Ellacott]

[ Humbug *General* list - semi-serious discussions about Humbug and ]
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On Thu, 30 Mar 2000, Michael Anthon wrote:

> Hmm, correct me if I am wrong, but I thought cable modems ARE real modems.
> I doubt if the data is transmitted as a baseband signal considering that the
> cable also contains lots of other channels of other types of information.
> The difference here is that the modulation is at a MUCH higher frequency (I
> don't know what frequency though...) than you could ever possibly achieve
> over normal copper cables used for telephony thus allowing much greater data
> rates.

Yes, I looked it up, and you are right.  The frequency is 65-850MHz,
although Telstra chose not to go with DOCSIS cable standards, so they
might be different.

http://www.cable-modems.org/tutorial/

Either way, there is far less latency on a cable modem than a PSTN modem.

--
bje


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