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Michael
Site Admin
Joined: 13 Jan 2005
Posts: 6201
Location: Cary, IL
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clarkgable
EVDO User
Joined: 14 Sep 2005
Posts: 89
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 Posted: Mon May 14, 2007 7:48 pm Post subject: |
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| From what I understand, Apple wants to put the 3G (EVDO or WCDMA) electronics in the cover itself, not just have the antenna in the cover, thereby avoiding the computer interfering with 3G. |
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Patrick_13
EVDO Newbie
Joined: 20 Jun 2007
Posts: 8
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| Posted: Wed Jun 20, 2007 1:18 am Post subject: |
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Just tossing this out... the original MacBook Pros also support 802.11A, which is 5.8GHz. Presumably it has both 2.4 and 5.8 antennas or some configuration that works for both.
The 11A support doesn't seem to be widely documented at all. I had no idea it was in there until my gen-1 Core 2 MBP picked up an 802.11A access point by accident. First and only time I have ever seen one.
Anyway, installing one of these EVDO cards would pretty much require disassembling a MBP. If you are going to that much trouble, why not install a 1900 optimized antenna? |
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jackrodgers
EVDO Addict
Joined: 23 Mar 2006
Posts: 1131
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| Posted: Wed Jun 20, 2007 7:45 am Post subject: |
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| Patrick_13 wrote: | | The 11A support doesn't seem to be widely documented at all. |
Original wifi on a Mac was B.
Then came G which uses A & B. This is why you picked up an A.
Now we have N which uses A & B & G and also a new category which is faster and further but unfortunately drops to the lowest speed of any computer joining the network.
On a computer to computer network, the speed matters but does not compare to modern ethernet cabling and switches. If you use EVDO it doesn't matter which flavor you use as it is slower than all of them. Well, it might if you have numerous known or unknown computers using your wifi. |
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opg4759
EVDO User
Joined: 06 Dec 2006
Posts: 36
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| Posted: Wed Jun 20, 2007 9:21 am Post subject: |
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[quote="jackrodgers"] | Patrick_13 wrote: | G which uses A & B. This is why you picked up an A.
Now we have N which uses A & B & G and also a new category which is faster and further but unfortunately drops to the lowest speed of any computer joining the network.
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802.11A and 802.11B/G run on different frequencies and are not interoperable. A runs on 5.8GHz while B,G run on 2.4GHz.
While N does run on both 2 and 5 GHz most equipment will only allow Rev a/n or rev B/G/N. This can change in the future. |
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jay_johnstone
EVDO Newbie
Joined: 28 Jun 2007
Posts: 1
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| Posted: Thu Jun 28, 2007 7:09 pm Post subject: Anyone done this on a MBP? |
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I just tried to do this hack on a Core Duo MacBook Pro, and no problems with the hardware install, but the OS (10.4. does not recognize the card any more. It worked and still works fine in the USB dongle (Ovation U720), and the airport card works fine when I put it back in the mini PCI slot, but the WWAN signal strength icon is not available when I have the card in the mini PCI slot, and System Profiler does not see the card any more. Ideas?
Thanks!
Jay |
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jackrodgers
EVDO Addict
Joined: 23 Mar 2006
Posts: 1131
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| Posted: Thu Jun 28, 2007 7:33 pm Post subject: |
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[quote="opg4759"] | jackrodgers wrote: | | Patrick_13 wrote: | G which uses A & B. This is why you picked up an A.
Now we have N which uses A & B & G and also a new category which is faster and further but unfortunately drops to the lowest speed of any computer joining the network.
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802.11A and 802.11B/G run on different frequencies and are not interoperable. A runs on 5.8GHz while B,G run on 2.4GHz.
While N does run on both 2 and 5 GHz most equipment will only allow Rev a/n or rev B/G/N. This can change in the future. |
From Wikipedia: The 802.11g standard swept the consumer world of early adopters starting in January 2003, well before ratification due to fierce competition along with dramatic reductions in manufacturing costs. Corporate users held back - Cisco and other big equipment makers wisely waited until ratification as early implementations were often poorly executed. By summer 2003, announcements were flourishing. Most of the dual-band 802.11a/b products became dual-band/tri-mode, supporting a, and b/g in a single mobile adapter card or access point."
So, while G is B & G, it would appear that some cards will also pickup A as I stated. I do seem to recall this from Apple's specs. |
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