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FS 2.4 ghz antenna for wireless router

 
 
Paul
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      03-21-2006, 12:04 PM
www.wifi-plus.com
one 4 inch beam $150.00

one 120 degree sector 170.00

located in Canada
radios available for long distance link
link up two locations of increase range of hotspot around house
(E-Mail Removed)

radio available for long links

http://www.keenansystems.com/store/c...hp?products_id $100.00


 
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Jeff Liebermann
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      03-21-2006, 04:36 PM
"Paul" <(E-Mail Removed)> hath wroth:

>www.wifi-plus.com
>one 4 inch beam $150.00
>
>one 120 degree sector 170.00
>
>located in Canada
>radios available for long distance link
>link up two locations of increase range of hotspot around house
>(E-Mail Removed)


Besides being commerical advertising in a non-commercial newsgroup,
some of the Wi-Fi Plus antennas are bogus.

Duz anything on this page look like a "pattern"? It does say
"patterns". Where are they?
http://www.wifi-plus.com/images/Gain...erns_Chart.pdf
What the hell is "effective penetrating gain" and dBmp? This reeks of
invented hype.

What are the dots on the pattern at:
http://www.wifi-plus.com/images/22dbibeam.pdf
Usually, they mean that someone measured those data points. I've done
LOTS of antenna pattern measurements and I've never seen anything so
close to perfect. Did anyone actually measure those patterns and why
such a tiny graph? If the front to back is really 40dB, why doesn't
it show on the graphs? 100MHz bandwidth, at what return loss? VSWR
graphs? Any side by side tests with conventional antennas to
demonstrate the alleged superiority in NLOS and "reduced noise"?

Here are what real patterns should look like:
http://www.pacwireless.com/products/plots.shtml

Sheesh....
--
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
 
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