News Group Posts

802.11g wireless

From: John Johnson <johajohn@indiana.edu>
Subject: Re: Airport Extrem in IbooK?
Date: Sat, 11 Jan 2003 22:32:26 -0500
References: <HtAT9.634136$%m4.203776@rwcrnsc52.ops.asp.att.net>
<m2wulc2oju.fsf@qqqq.invalid>
<avpl38$816$1@lucy.ping.de>
<m2ptr37dnl.fsf@qqqq.invalid>
<1fomz9l.19lapazkajft2N%jan.a.knudsen@student.bi.no.invalid> 

In article 
<1fomz9l.19lapazkajft2N%jan.a.knudsen@student.bi.no.invalid>,
 jan.a.knudsen@student.bi.no.invalid (Jan Andreas Knudsen) wrote:

> David C. <shamino@techie.com> wrote:
> 
> > Andreas Rossbacher <ar@dorf.wh.uni-dortmund.de> writes:
> > > David C. wrote:
> > >> 
> > >> It's conceivable (and IMO, likely) that somebody (even if not
> > >> Apple) will come up with an 802.11g card for PCMCIA, PCI or perhaps
> > >> even FireWire.
> > > 
> > > But there never will be internal Versions of these. This is cause
> > > the antenna is completely different for 802.11g cause of the
> > > different frequency which is used. (5 GHz in g and 2.4 in b)
> 
> Ok, thanks, this is the info I've been looking for! :) Now,
> unfortunately, I can forget hoping for Airport Extreme in my iBook...
> 
> > Did you have a point?  Is this somehow a reaons to avoid using AirPort
> > Extreme?  Or do you just enjoy stating the obvious?
> > 
> > -- David
> 
> What? How can this info be interpreted as a reason to aviod AirPort
> Extreme? Mr. Rossbacher just explained why we won't see an AirPort
> Extreme adapter for the current iBooks. The difference in frequencies
> was not obvious, at least not to me..

As stated in an earlier post, the difference in frequencies was a 
mistake. 802.11b (Airport) operates at 2.4GHz. 802.11a (some new flavor 
of WiFi, I don't know any catchy names for it) operates at 5GHz and is 
NOT compatible with 802.11b. 802.11g (Airport Extreme) operates at 
2.4GHz, and IS compatible with 802.11b (each is limited to its own max  
bandwidth--11 or 54megabit, IIRC--but they will see and talk to each 
other). 

Later.
 

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