From: species8350 on
On Jan 10, 1:44 pm, Bob <b...(a)invalid.invalid> wrote:
> On 10/01/2010 13:19, species8350 wrote:
>
>
>
> > Note my router has not yet arrived, hence all my questions may see
> > very basic. But I will learn in time and with experience.
>
> > Thanks
>
> The router seems to be taking an awfully long time to arrive. You had a
> thread going in Aug 2009 about a router and wireless card.
> <http://groups.google.com/group/alt.comp.hardware/browse_thread/thread...>

The router is not my responsiblity, I just have permission to use it
when it arrives.

Now to business. I was wondering about shared channel numbers.

If a couple of people, on differeent networks, are using the same
channel, but I see, through site survey, that the signals are weak,
say less than 20%. Would I notice any difference in bandwidth?

Thanks

From: Christopher A. Lee on
On Sun, 10 Jan 2010 05:19:09 -0800 (PST), species8350
<not_here.5.species8350(a)xoxy.net> wrote:

>On Jan 9, 5:12�pm, Tony Hwang <drago...(a)shaw.ca> wrote:
>> species8350 wrote:
>> > Looking at the 'Site Summary'
>>
>> > What does the 'Phys' information mean. For example, G
>>
>> > I have noticed that most people seem to use channel 1 or 11. What is
>> > the significance of these channels?
>>
>> > Under 'WPS' there is a Pin code. It can also be renewed. What is this
>> > used for?
>>
>> > In 'configuration' mode. What does Enrole mean?
>>
>> > Other.
>>
>> > Obviously the greater the signal received the better. But in % terms,
>> > what constitutes a good signal?
>>
>> > For an antenna with a cable. Does the cable form part of the antenna.
>> > In other words is the anrtenna the actaul antenna + the cable?
>>
>> > Thanks
>>
>> Hmmm,
>> Google is your friend. You are asking all this very basic stuffs!- Hide quoted text -
>>
>> - Show quoted text -
>
>Try this one
>
>Some one said that if I detect other networks that broadcast on
>certain channels, then I should use a different channel that differs
>by 5. Evidently this is due to sharing. I dont quite understand this
>if people use diffeent ISP's.

It's nothing to do with the ISP.

It is radio interference rather like the boundary between two radio
stations on the same frequency. You get a garbled result that the comm
hardware and software still have to process, decide it is garbled and
send a retransmit order. Which itself might get garbled and it waits
for a response before timing out and requesting another retransmit.

It's a little more complicated than that because it's more like
overlapping bell curves but you should get the idea.

Even without the garbling, both your computer and router still have to
process every signal to determine if it is for your network, ignoring
those that aren't.

The 5 separation between channels means the bell curves are far enough
apart in the frequency spectrum so you don't get any overlap so you
don't get any interference from that source.

>If it is advisable, then I may need to change the channel both on the
>client and therefore on the router. I assume that I will be able to
>change both on the client. This procedure may need to be conducted
>quite often depending on which networks are connecting.

You should only need to do it at the router. The computer should lock
onto it.

But having said that if your neighbour also has a wireless router you
should discuss what channels you each use. You might not have a choice
if there is a community/utility router but your wireless software
should tell you somewhere what channel it uses if you connect to it.

>Any idea what difference it might make if people are using the same
>channel, for example, two networks.

They will interfere with each other.

>Note my router has not yet arrived, hence all my questions may see
>very basic. But I will learn in time and with experience.
>
>Thanks
From: species8350 on
On Jan 10, 1:44 pm, Bob <b...(a)invalid.invalid> wrote:
> On 10/01/2010 13:19, species8350 wrote:
>
>
>
> > Note my router has not yet arrived, hence all my questions may see
> > very basic. But I will learn in time and with experience.
>
> > Thanks
>
> The router seems to be taking an awfully long time to arrive. You had a
> thread going in Aug 2009 about a router and wireless card.
> <http://groups.google.com/group/alt.comp.hardware/browse_thread/thread...>

Regarding bandwidth and channel.

As an example, if two people on different networks are uising the same
channel, and say that both have a signal of 20%, does this mean that
for this channel, %40 of the bandwith is being used. Hence, %60 is
left. Speed will be reduced by %40.

Thanks
From: species8350 on
On Jan 10, 3:40 pm, species8350 <not_here.5.species8...(a)xoxy.net>
wrote:
> On Jan 10, 1:44 pm, Bob <b...(a)invalid.invalid> wrote:
>
> > On 10/01/2010 13:19, species8350 wrote:
>
> > > Note my router has not yet arrived, hence all my questions may see
> > > very basic. But I will learn in time and with experience.
>
> > > Thanks
>
> > The router seems to be taking an awfully long time to arrive. You had a
> > thread going in Aug 2009 about a router and wireless card.
> > <http://groups.google.com/group/alt.comp.hardware/browse_thread/thread....>
>
> Regarding bandwidth and channel.
>
> As an example, if two people on different networks are uising the same
> channel, and say that both have a signal of 20%, does this mean that
> for this channel, %40 of the bandwith is being used. Hence, %60 is
> left. Speed will be reduced by %40.
>
> Thanks

I have just read your post regarding interference. I realise now that
the same channels will interfere. On the point regarding neighbours'.
I have no idea where the signals are comming from. Only that they tend
to be weak, less than %20. That's why I wondered if the weak signals
would make much difference to my reception. I suppose two weak
intereferences are worse than one weak interference.

I like the radio analogy

Thanks
From: Christopher A. Lee on
On Sun, 10 Jan 2010 07:30:09 -0800 (PST), species8350
<not_here.5.species8350(a)xoxy.net> wrote:

>The router is not my responsiblity, I just have permission to use it
>when it arrives.
>
>Now to business. I was wondering about shared channel numbers.
>
>If a couple of people, on differeent networks, are using the same
>channel, but I see, through site survey, that the signals are weak,
>say less than 20%. Would I notice any difference in bandwidth?

Yes. Because you are both using the same bandwidth. Both your PC and
your router have to listen in on every transmission even if they don't
decode it, to see who it's for.

And the more devices using the same bandwidth, the more data
collisions there are causing waits to restransmit.

>Thanks