Archived from groups: microsoft.public.windowsxp.hardware (More info?)

Hi

I have a 54g Belkin PCI Network card that connects to a Linksys 54g Wireless
Router/ADSL Gateway. Just noticed that the connection is at 11Mbps. The
router is set to Mixed (ie 802.11g and b) but when I select 802.11g only my
PC drops the connection.

Very frustrating as I'm trying to transfer my music collection

I'm running XP with Service Pack 2 and have updated the Router firmware

Thanks

Steve

Archived from groups: microsoft.public.windowsxp.hardware (More info?)

Tale of the Tech Tape
Controversy has already plagued 802.11g. To finally get 802.11g out the door, by
agreeing to disagree after years of 802.11 committee fights finally proved that
neither one could get enough committee votes to gets its own pet 22Mbps solution
official 802.11g blessing. The end result is that 802.11g is a compromise
incorporating no fewer than four different wireless standards

For 802.11b compatibility, 802.11g incorporates 802.11b's Complementary Code
Keying (CCK) to achieve bit transfer rates of 5.5 and 11Mbps in the 2.4Ghz band.
In addition, 802.11g adopts 802.11a's Orthogonal Frequency Division Multiplexing
(OFDM) for 54Mbps speeds but in the 2.4Ghz range.

802.11g also comes with a pair of optional, and incompatible, modes to achieve
throughput ranges in the 22Mbps range. These are Intersil's CCK-OFDM mode with a
maximum throughput of 33Mbps and TI's Packet Binary Convolutional Coding
(PBCC-22), with a throughput range of 6 to 54Mbps.

Both 802.11a and 802.11g offers up to 55Mbps speeds in the lab. In the field,
802.11a delivers about 20Mbps. That may not sound like much unless you know that
802.11b's 11Mpbs theoretical speed is more often 4Mbps in practice. Early
versions of 11g chipsets have real-world speeds in the 6Mbps range according to
vendors.

It's also clear from early tests that 802.11g has the same, or perhaps slightly
better, range than 802.11b. On the other hand, 802.11a seems to maintain a
higher throughput out to the limit of its range, while 802.11g appears to run
out of steam at its extreme range.

Of course, 2.4GHz, with interference from everything to satellites to microwave
ovens to high-end wireless phones, has to contend with a lot of radio frequency
(RF) noise. This can result in lower throughput, which in turn can effectively
reduce its range. 802.11a's 5Ghz, on the other hand, has much less interference
to deal with and it's part of the spectrum appears from FCC regulations likely
to stay free of most other RF devices.

Finally, 802.11g can handle only three channels at once. The first generation of
Aethero's chips though could handle eleven channels at once and the next
generation supports thirteen channels in the US market and nineteen in Europe.
Thus, in a business environment, with multiple users, even if components were
delivering 55Mbps speeds, 802.11a would effectively have more bandwidth in heavy
usage situations.

It's clear that neither technology is a slam-dunk over the other. Technology
issues though are only part of the story.

"Steve Ford" <steveford77@hotmail.com> wrote in message
news:4169b9e1$0$54811$ed2619ec@ptn-nntp-reader01.plus.net...
> Hi
>
> I have a 54g Belkin PCI Network card that connects to a Linksys 54g Wireless
> Router/ADSL Gateway. Just noticed that the connection is at 11Mbps. The router
> is set to Mixed (ie 802.11g and b) but when I select 802.11g only my PC drops
> the connection.
>
> Very frustrating as I'm trying to transfer my music collection
>
> I'm running XP with Service Pack 2 and have updated the Router firmware
>
> Thanks
>
> Steve
>

Archived from groups: microsoft.public.windowsxp.hardware (More info?)

So that means I'll never get more than 11Mbps does it? The fact that
connection drops when I select 802.11g suggested to me that it was a
different problem

Steve


"peter" <peter@nomalarky.net> wrote in message
news:%23Nli0FzrEHA.3324@TK2MSFTNGP15.phx.gbl...
> Tale of the Tech Tape
> Controversy has already plagued 802.11g. To finally get 802.11g out the
> door, by agreeing to disagree after years of 802.11 committee fights
> finally proved that neither one could get enough committee votes to gets
> its own pet 22Mbps solution official 802.11g blessing. The end result is
> that 802.11g is a compromise incorporating no fewer than four different
> wireless standards
>
> For 802.11b compatibility, 802.11g incorporates 802.11b's Complementary
> Code Keying (CCK) to achieve bit transfer rates of 5.5 and 11Mbps in the
> 2.4Ghz band. In addition, 802.11g adopts 802.11a's Orthogonal Frequency
> Division Multiplexing (OFDM) for 54Mbps speeds but in the 2.4Ghz range.
>
> 802.11g also comes with a pair of optional, and incompatible, modes to
> achieve throughput ranges in the 22Mbps range. These are Intersil's
> CCK-OFDM mode with a maximum throughput of 33Mbps and TI's Packet Binary
> Convolutional Coding (PBCC-22), with a throughput range of 6 to 54Mbps.
>
> Both 802.11a and 802.11g offers up to 55Mbps speeds in the lab. In the
> field, 802.11a delivers about 20Mbps. That may not sound like much unless
> you know that 802.11b's 11Mpbs theoretical speed is more often 4Mbps in
> practice. Early versions of 11g chipsets have real-world speeds in the
> 6Mbps range according to vendors.
>
> It's also clear from early tests that 802.11g has the same, or perhaps
> slightly better, range than 802.11b. On the other hand, 802.11a seems to
> maintain a higher throughput out to the limit of its range, while 802.11g
> appears to run out of steam at its extreme range.
>
> Of course, 2.4GHz, with interference from everything to satellites to
> microwave ovens to high-end wireless phones, has to contend with a lot of
> radio frequency (RF) noise. This can result in lower throughput, which in
> turn can effectively reduce its range. 802.11a's 5Ghz, on the other hand,
> has much less interference to deal with and it's part of the spectrum
> appears from FCC regulations likely to stay free of most other RF devices.
>
> Finally, 802.11g can handle only three channels at once. The first
> generation of Aethero's chips though could handle eleven channels at once
> and the next generation supports thirteen channels in the US market and
> nineteen in Europe. Thus, in a business environment, with multiple users,
> even if components were delivering 55Mbps speeds, 802.11a would
> effectively have more bandwidth in heavy usage situations.
>
> It's clear that neither technology is a slam-dunk over the other.
> Technology issues though are only part of the story.
>
> "Steve Ford" <steveford77@hotmail.com> wrote in message
> news:4169b9e1$0$54811$ed2619ec@ptn-nntp-reader01.plus.net...
>> Hi
>>
>> I have a 54g Belkin PCI Network card that connects to a Linksys 54g
>> Wireless Router/ADSL Gateway. Just noticed that the connection is at
>> 11Mbps. The router is set to Mixed (ie 802.11g and b) but when I select
>> 802.11g only my PC drops the connection.
>>
>> Very frustrating as I'm trying to transfer my music collection
>>
>> I'm running XP with Service Pack 2 and have updated the Router firmware
>>
>> Thanks
>>
>> Steve
>>
>
>