[Soekris] Looking for feedback on a linux build on net4521
bobgus at rcn.com
Thu Feb 25 13:23:44 UTC 2010
On Thu, 2010-02-25 at 21:59 +0900, John Doe wrote:
> On Thu, Feb 25, 2010 at 10:25 AM, uzoma nwosu <uzoma.nwosu at gmail.com> wrote:
> > Thanks for all of the feedback. This is helping me device my action plan.
> > A follow-up question: If I don't use two wireless cards in a net4521,
> > do I have to use antennas? I assume that I would just connect both
> > antennas to the one card.
> Most wifi cards have 2 antenna connectors, and some 802.11n even have
> 3, so yes, connect both antennas to the same card and enjoy.
> I'm no wifi expert, but I think that at least 2 antennas are needed
> for MIMO, and they also provide something called "diversity".
> Check the wikipedia MIMO article: http://en.wikipedia.org/wiki/MIMO
> So actually the 2 holes in the net4521 case are just perfect.
> I wish the net5501 case also had 2 of those holes.
Also, at least one of the cards out there (Compex..) seems to have a
stronger signal on the AUX antenna connection than the MAIN antenna
connection. It may be some default in the driver that is twisted around.
Some WiFi phones have a signal strength meter (QuickPhone 34..). This is
very useful for measuring the effectiveness of one antenna, two
antennas, mounting position, etc.
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