One more (the rest you guys can Google):<br><font class="Apple-style-span" face="verdana, arial, helvetica, sans-serif"><br></font><div><span class="Apple-style-span" style="font-family: verdana, arial, helvetica, sans-serif; ">"The WZ-2301A is an indoor solution 1W bi-directional Booster designed for 2.4GHz wireless LANs. This unit comes with an easy plug-and-play installation, which works together with an indoor Wireless Access Point to improve its operation range and performance. The unit is ideal for use with 2.4 GHz frequency hopping or direct sequence spread spectrum radio modems and 802.11b/g devices. The amplifiers increase range by providing transmit gain as well as low-noise receive gain. This receive gain increases the receive sensitivity of wireless LAN Access Point. Full output power of 1W is achieved with only 5 mW input into the Booster."</span></div>
<div><span class="Apple-style-span" style="font-family: verdana, arial, helvetica, sans-serif; "></span><br><div><span class="Apple-style-span" style="font-family: verdana, arial, helvetica, sans-serif; "><div class="productDescriptionWrapper" style="margin-top: 0px; margin-right: 0px; margin-bottom: 1em; margin-left: 0px; ">
<a href="http://www.amazon.com/Indoor-802-11b-Fixed-Gain-Booster-Amplifier/dp/B000V1SUQE/ref=pd_rhf_shvl_1">http://www.amazon.com/Indoor-802-11b-Fixed-Gain-Booster-Amplifier/dp/B000V1SUQE/ref=pd_rhf_shvl_1</a></div><div class="productDescriptionWrapper" style="margin-top: 0px; margin-right: 0px; margin-bottom: 1em; margin-left: 0px; ">
<br></div></span><div class="gmail_quote">On Sat, Jan 16, 2010 at 11:28 AM, marc fawzi <span dir="ltr"><<a href="mailto:marc.fawzi@gmail.com">marc.fawzi@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
I'll investigate using this 802.11b 2-way amplifier (<a href="http://www.danets.com/turbotenna/turbotenna%20009xt.php" target="_blank">http://www.danets.com/turbotenna/turbotenna%20009xt.php</a>) with a proper directional antenna. <div>
<br></div><div>The concern the maker of this 2-way 802.11b amplifier seems to state has to do with isotropic radiation level, which must be limited to conform to regulation. Ultimately, I envision an outdoor enclosure for the WRT with an outdoor directional antenna placed on top and pointed away from the home toward the coverage area. <div>
<div></div><div class="h5"><br>
<br><div class="gmail_quote">On Sat, Jan 16, 2010 at 11:14 AM, marc fawzi <span dir="ltr"><<a href="mailto:marc.fawzi@gmail.com" target="_blank">marc.fawzi@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div><br></div>Hi Mitar,<div><br></div><div><div><div>There are many ways to enhance s/n in an amplifier circuit or DSP-based amplification. It's not magic per se. A signal can be extracted from noise through various techniques, including both real-time as well as post-processing approaches. I agree that it is not magic, per se, but it's been done in many different scenarios for many decades now, and I'm interested in exploring what real-time approach might be suitable in the Ghz range, including but not limited to MIMO based ones. </div>
<div><br></div><div><div>My question about the possibility of enhancing the signal (in both directions) at the WRT nodes comes from my curiosity to see what can be done as far as making the experimental OLSR network more practical and reliable by extending the 2-way coverage area of the WRT nodes as much as current technology allows. </div>
<div><br></div><div>Will report back as to what commercial amplifier/booster works once I have gone thru the steps of getting olsrd working properly on G1 and WRT54GL nodes, which I expect will generate more questions.</div>
<div><br></div><div>For now, take a look at this 2-way 802.11b amplifier:</div><div><div><br></div><div><a href="http://www.danets.com/turbotenna/turbotenna%20009xt.php" target="_blank">http://www.danets.com/turbotenna/turbotenna%20009xt.php</a></div>
<div><br></div></div><div>Thanks,</div><div><br></div><font color="#888888"><div>Marc</div><div><br></div></font></div><div><div></div><div><div><span style="font-family:verdana, arial, helvetica, sans-serif"><div style="margin-top:0.5em;margin-right:0px;margin-bottom:0em;margin-left:25px">
<div><br></div></div></span></div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div><br><div class="gmail_quote">On Sat, Jan 16, 2010 at 9:00 AM, Mitar <span dir="ltr"><<a href="mailto:mmitar@gmail.com" target="_blank">mmitar@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi!<br>
<div><br>
On Fri, Jan 15, 2010 at 8:01 PM, marc fawzi <<a href="mailto:marc.fawzi@gmail.com" target="_blank">marc.fawzi@gmail.com</a>> wrote:<br>
> What I'm not clear about is if the signal from the phone could be made more<br>
> detectable to te WRT if the WRT is preceded by a 2-way signal booster (i.e.<br>
> a "booster" for outgoing signal and an "amplifier" for incoming signal).<br>
<br>
</div>Amplifiers are not magical things. They can distort signal and they<br>
also amplify noise together with the signal. And having a bigger area<br>
with one node means having more multiple possible noise sources per<br>
one node. Amplifying that does not really help. But riding of noise<br>
does (like using reserved spectrum like GSM does, using directional<br>
antenna, using MIMO-like techniques to cancel out electromagnetic<br>
interference (or to enhance just signal)).<br>
<font color="#888888"><br>
<br>
Mitar<br>
</font></blockquote></div><br></div></div></div></div></div>
</blockquote></div><br></div></div></div>
</blockquote></div><br></div></div>