| From: | Neil Bothwick |
| Date: | 2 May 2001 at 08:09:58 |
| Subject: | Re: Networking options : was Re: Issue 20 Not delivery related:) |
Andrew Crowe said,
>>> How does ADSL compare to cable????
>>
>> The speeds are similar but the bandwidth sharing is handled
>> differently.
> With ADSL you can have anything from 512kb/s down 256kb/s up to 2mb/s
> up 256kb/s down, I think cable was 512kb/s down 128kb/s up last time.
Cable services can go up to at least 1.5Mb/s
> The problem with ADSL is that the same frequenct is shared with about
> 20 people, so if everyone was using the full bandwidth at a time your
> download speed could be as little as 25kb/s, half the speed of a
> modem.
It's shared among 50 people on the home service and cheaper business
service, but when atre all 50 people going to be using it at the same
time? with cable the bandwidth is shared among all the people on the
same loop, so as more people in your street get it, the service slows
down.
I must say however that I've never noticed the bandwidth on
> the ADSL connection at work drop at all, I guess the problems'll
> only start once ADSL becomes affordable and more people have it.
It won't be a problem because the contention ratio has to be maintained.
If twice as many people subscribe, the ISP has to provide trwice as
many ports.
>> My ISDN is much faster than a 56k modem :-O Cable and ADSL are
>> faster still. What sort of download speeds do you get?
> I wouldn't say ISDN was much faster, it's only between about 2x-3x
> faster then a 56k modem, which isn't much,
Try going back to a modem after using it for a couple of years and
you'll change your mind. The difference is nowhere near as great as the
jump to ADSL but it's more than noticeable.
Modem = 020
ISDN = 030
ISDN128 = 040
ADSL = 060+PPC
> and if you use full 128k
> you pay twice as much for the phone bill
Yeah, doubling the cost of an 0800 call is a real killer :)
For most of their life, RedHotAnt were allowing dual channel connections
to their 0808 number, it only stopped when they changed telco and
numbers.
Cheers
Neil
Mac screen message: "Like, dude, something went wrong."
Quote carefully and read all ADMIN:README mails
Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/