Theoretical speed on DELL Inspiron 8600 with a wireless 1350 WLAN Mini PCI?

Can someone help me out her in understanding what I can get out of my
wireless Dell equipment?



I have a DELL Inspiron 8600 with a wireless 1350 WLAN Mini PCI and have just
ordered a new D.Link DI-624 Xtreme G (108Mbit) router.



But I'm not really sure how much I can get out of my built-in wireless 1350
WLAN Mini PCI?? I have read somewhere that this supports 802.11g, but other
places I have read that this laptop could be bought with 3 different
wireless WLAN cards???



Can I get a theoretical 108Mbit - 54Mbit or even less from my built-in WLAN?



Thanks.



Pvest

On Mon, 25 Apr 2005 19:22:43 +0200, "Per" <(E-Mail Removed)> wrote:

>Can someone help me out her in understanding what I can get out of my
>wireless Dell equipment?
>I have a DELL Inspiron 8600 with a wireless 1350 WLAN Mini PCI and have just
>ordered a new D.Link DI-624 Xtreme G (108Mbit) router.
>But I'm not really sure how much I can get out of my built-in wireless 1350
>WLAN Mini PCI?? I have read somewhere that this supports 802.11g, but other
>places I have read that this laptop could be bought with 3 different
>wireless WLAN cards???
>
>Can I get a theoretical 108Mbit - 54Mbit or even less from my built-in WLAN?

Recycled from an earlier posting. The 108 and 54mbits/sec are the
connection speeds before protocol overhead. With an 802.11g only
54Mbit/sec connection, you'll get about 25-30Mbits/sec. What are you
getting and how are you measuring it?

I keep getting asked "how fast can it go" type questions. Perhaps
some numbers might help. This is stolen from an Atheros PDF at:
http://www.atheros.com/pt/atheros_range_whitepaper.pdf
with some additions and corrections by me.


Non-overlapping Modulation Max Max Max
Channels ------- | Link TCP UDP
| | | | |
802.11b 3 CCK 11 5.9 7.1
802.11g (with
802.11b) 3 OFDM/CCK 54 14.4 19.5
802.11g only 3 OFDM 54 24.4 30.5
802.11g turbo 1 OFDM 108 42.9 54.8
802.11a 13 OFDM 54 24.4 30.5
802.11a turbo 6 OFDM 108 42.9 54.8

The paper claims that encryption is enabled for these calculations,
but my numbers seem to indicate that these number are for encryption
disabled. Dunno for sure. The Max TCP and Max UDP are the
theoretical maximum thruput rates.


--
Jeff Liebermann (E-Mail Removed)
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 AE6KS 831-336-2558

Per wrote:

> I have a DELL Inspiron 8600 with a wireless 1350 WLAN Mini PCI and have just
> ordered a new D.Link DI-624 Xtreme G (108Mbit) router.

I have a Dell D600 with the 1350 WLAN Mini PCI card and a Netgear WGT624
108Mbs router - v. similar setup.

> But I'm not really sure how much I can get out of my built-in wireless 1350
> WLAN Mini PCI?? I have read somewhere that this supports 802.11g, but other
> places I have read that this laptop could be bought with 3 different
> wireless WLAN cards???

True - Dell do supply a number of different cards ranging from their own
Mini PCI cards to versions on the Intel's ProWireless cards. Which card
you go for depends on whether you want a 'brandname' like Intel and also
which wireless standard you want.

The available cards support b, a/b, b/g or a/b/g wireless standards.
Basically pick one of the available cards that matches the wireless
standard the router has and decide if you want a Dell branded card or an
Intel Branded card.

> Can I get a theoretical 108Mbit - 54Mbit or even less from my built-in WLAN?
Short answer to this is No. Even if the built in WLAN card and your
router supported 108Mbs you won't ever get 108Mbs speed. The speed if a
theoretical maximum that measures the raw data speed of the link and
does not take into account the possibility of signal loss, errors and
the like which cause information, i.e. data packets, to be
re-transmitted therfore ultimately limiting the speed of the link.

The highest speed I can get is around 36Mbs which I consider to be very
good, especially in my house where the router is upstairs and the PC
downstairs and there's a concrete floor inbetween.

If you want the fastest possible connection between your PC and the
router your only option is to use a wired connection running at either
100Mbs or 1Gigabit.

--
JasonB

"Jeff Liebermann" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> On Mon, 25 Apr 2005 19:22:43 +0200, "Per" <(E-Mail Removed)> wrote:
>
>> >I have a DELL Inspiron 8600 with a wireless 1350 WLAN Mini PCI and have
just
> >ordered a new D.Link DI-624 Xtreme G (108Mbit) router.
>>
>> I keep getting asked "how fast can it go" type questions. Perhaps
> some numbers might help. This is stolen from an Atheros PDF at:
> http://www.atheros.com/pt/atheros_range_whitepaper.pdf
> with some additions and corrections by me.
>

Hi



I guess I might explained myself a bit unclear, maybe it's my Norwegian
thong that made my English a bit rusty. )

The reason for asking is that I have ordered a new DI-624 router, with a
theoretical 108Mbit (of cause not real). But my thought was, now that I have
ordered a new DI-624, will I get speed enough to match the DI-624? Or would
it be an option to also buy new D-Link DWL-G650 for my laptop?

In other words, will I gain any extra speed if buying a DWL-G650, or will
there be no difference either I'm using the built-in or a DWL-G650?

That was my meaning with my question, not so much how much Mbit speed!!



Pvest

On Mon, 25 Apr 2005 19:09:21 GMT, in alt.internet.wireless , jasonb
<(E-Mail Removed)> wrote:

>> Can I get a theoretical 108Mbit - 54Mbit or even less from my built-in WLAN?

>Short answer to this is No. Even if the built in WLAN card and your
>router supported 108Mbs you won't ever get 108Mbs speed.

And bear in mind also that 108Mbs is a proprietary nonstandard speed
that generally is only supported if the AP and the PC card are the
same make. Two different brands both supporting 108Mbs may still not
cooperate.


--
Mark McIntyre
CLC FAQ <http://www.eskimo.com/~scs/C-faq/top.html>
CLC readme: <http://www.ungerhu.com/jxh/clc.welcome.txt>

On Mon, 25 Apr 2005 21:11:59 +0200, "Per" <(E-Mail Removed)> wrote:

>I guess I might explained myself a bit unclear, maybe it's my Norwegian
>thong that made my English a bit rusty. )

Your English is quite good. I misunderstood.

>The reason for asking is that I have ordered a new DI-624 router, with a
>theoretical 108Mbit (of cause not real). But my thought was, now that I have
>ordered a new DI-624, will I get speed enough to match the DI-624? Or would
>it be an option to also buy new D-Link DWL-G650 for my laptop?
>
>In other words, will I gain any extra speed if buying a DWL-G650, or will
>there be no difference either I'm using the built-in or a DWL-G650?
>
>That was my meaning with my question, not so much how much Mbit speed!!

You need to have Super-G compatible hardware at both ends to get the
theoretical 108Mbits/sec speed. If your built-in laptop Wi-Fi card
only does 802.11g, but not Super-G, you will only get 54Mbits/sec. If
you want the full 108Mbits/sec, then you will need to purchase a
DWL-G650 card.

In most cases, 54Mbits/sec connection speed will give you about
30Mbits/sec thruput. This is usually fast enough for most
applications. However, the range is reduced as the speed increases.

The following was stolen from:
| http://www.intel.com/business/bss/in...nt/hotspot.pdf
I don't consider the numbers very accurate, but they're good enough
for a start. If you want speed, you will lose range.

Rate Approximate Max Indoor Range
1 Mbps 350 ft.
2 Mbps 250 ft.
5.5 Mbps 180 ft.
6 Mbps 300 ft.
9 Mbps 250 ft.
11 Mbps 150 ft.
12 Mbps 200 ft.
18 Mbps 170 ft.
24 Mbps 140 ft.
36 Mbps 100 ft.
48 Mbps 95 ft.
54 Mbps 90 ft.


--
# Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060
# 831.336.2558 voice http://www.LearnByDestroying.com
# (E-Mail Removed)
# (E-Mail Removed) AE6KS

"Per" <(E-Mail Removed)> wrote in message
news:EH9be.8070$(E-Mail Removed)...
> Can someone help me out her in understanding what I can get out of my
> wireless Dell equipment?
>
>
>
> I have a DELL Inspiron 8600 with a wireless 1350 WLAN Mini PCI and have
> just
> ordered a new D.Link DI-624 Xtreme G (108Mbit) router.
>
>
>
> But I'm not really sure how much I can get out of my built-in wireless
> 1350
> WLAN Mini PCI?? I have read somewhere that this supports 802.11g, but
> other
> places I have read that this laptop could be bought with 3 different
> wireless WLAN cards???
>
>
>
> Can I get a theoretical 108Mbit - 54Mbit or even less from my built-in
> WLAN?

Since you're norwegian, check here:

http://www.dinside.no/php/art.php?id=102880

Dell 8600 internal to D-Link DI-624:

http://www.dinside.no/php/art.php?id=211158 (the blue graph)

Best,

Blix