Most powerful PCMCIA card?

I was told that this card UBIQUITI SRC 300mW is the best. Is this true
or is the Buffalo products better? Thanks.

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On 12 Nov 2005 01:39:59 GMT, (E-Mail Removed) wrote:

>I was told that this card UBIQUITI SRC 300mW is the best. Is this true
>or is the Buffalo products better? Thanks.

Well, let's do the math and see if this exercise is worth the effort.

Typical client radio: 50mw
Senao: 100mw/200mw
UBIQUITI: 300mw.

Range doubles for every 6dB increase in xmit power (assuming identical
antennas). For omni antennas, coverage area increases 4x for every
6dB increase in xmit power.

Therefore:
Milliwatts dB over Range
50mw Increase
50 0 0
100 3 1.4x
200 6 2.0x
300 7.8 2.5x
1000 13 4.5x

Of course, you need to have an equal power increase at the other end
of the link in order to take advantage of the transmit power increase.
You will not see a range increase unless you can hear the reply from
the other end. If the other end is running much lower transmit power,
the useable range will be the same. Methings you would do better with
an improved antenna, which increases the range in both directions.

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Jeff Liebermann (E-Mail Removed)
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558