Page 1 of 1

T61 has 2 antennas, Intel Wireless WiFi Link 4965AGN has 3

Posted: Sat Apr 04, 2009 9:48 am
by asarkar
Hi,
Good part:
I recently installed an Intel Wireless WiFi Link 4965AGN in my T61.

Not so good part:
I found that my laptop has 2 antenna wires while the card has slot for 3. What is the implication? Will I be able to leverage the full potential of the card? Do I need to install a 3rd antenna (I'm not sure that's technically possible)? If yes, where can I buy one?

Any comment/advice will be greatly appreciated.

Abhi

Re: T61 has 2 antennas, Intel Wireless WiFi Link 4965AGN has 3

Posted: Sat Apr 04, 2009 6:45 pm
by bill bolton
asarkar wrote:What is the implication?
The implication is that your T61 was manufactured to support a 802.11a/b/g WiFi card only.
asarkar wrote:Do I need to install a 3rd antenna (I'm not sure that's technically possible
The most straightforward thing to do is to install an additional WiFi antenna on a suitable chassis surface under the palm rest (on whichever side you normally cover least with your palms) using a piece of double sided tape.

See here for something on ebay that will work nicely. That's basically what I did on both a T60 and a T61.

Cheers,

Bill B.

Re: T61 has 2 antennas, Intel Wireless WiFi Link 4965AGN has 3

Posted: Sat Apr 04, 2009 9:25 pm
by asarkar
bill bolton wrote: The most straightforward thing to do is to install an additional WiFi antenna on a suitable chassis surface under the palm rest (on whichever side you normally cover least with your palms) using a piece of double sided tape.
Thanks for your advice Bill.
Before moving on to purchase an antenna, I am wondering if I really need one. Is it something I must get to make this card useful?

Abhi

Re: T61 has 2 antennas, Intel Wireless WiFi Link 4965AGN has 3

Posted: Tue Apr 07, 2009 2:28 am
by Tseng
Unless you have a draft-N AP, otherwise the 2 antenna would be sufficient for your 4965AGN in the 802.11G environment.

Re: T61 has 2 antennas, Intel Wireless WiFi Link 4965AGN has 3

Posted: Thu Apr 09, 2009 8:59 pm
by SafeHarbor
One antenna would be just as good in a non-Draft N G environment because G makes no use of a multipath signal, instead considering it interference.

N should work okay with two antennas, from what I understand. Three makes for a little better "spatial multiplexing," but I haven't found much information about how much.

Lamar