🚀 go-pugleaf

On Sun, 5 May 2002 14:05:17 -0700, "Gary Funck" <gary@intrepid.com>
wrote:

>> http://freenetworks.org/moin/index.cgi/ReceiveSensitivity

Nice.  I just wish I had some clue as to how it was measured.  
The BER = 10^-5 is the defacto standard reference, although most
manufactories are going to the ISO recommended 10^-6.  I note that all
the cards listed have a stock external antenna connector.  However, I
can't tell if the sensitivity measurement includes the pigtail.
(cut...)

>That Musenki looks pretty darn good.  By the way, in my own ad hoc testing,
>I did find that the Netgear PCMCIA card outperforned the Orinoco Gold
>(card), and the USR card (not ranked) above.

Note that all the cards listed incluse a stock antenna connector.
Your unspecified Netgear PCMCIA model card does NOT have an external
antenna connector.  None of the tests include the internal antenna
which has a BIG effect.  Circuit board antennas at 2.4Ghz are VERY
lossy.  You could have the worlds greatest receiver, but if the
antenna suck, you're not going to have any range.  For a really
meaningful measurement with the build in antennas, one should do a
field strength sensitivity test, which includes the antenna.

Just to put the numbers (-dBm) in perspective, a 6dB difference is
double the range and 4 times and coverage area (assuming an omni
antenna).


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