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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>They are – including your microwave.
The Apollo program also used this frequency band.</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
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<p><b><i><font size=4 color=navy face="Brush Script MT"><span style='font-size:
13.5pt;font-family:"Brush Script MT";color:navy;font-weight:bold;font-style:
italic'>Jay </span></font></i></b><b><i><font size=4 color=navy
face="Brush Script MT"><span style='font-size:13.5pt;font-family:"Brush Script MT";
color:navy;font-weight:bold;font-style:italic'>Marshall</span></font></i></b><font
color=navy><span style='color:navy'> </span></font></p>
</div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma'>-----Original Message-----<br>
<b><span style='font-weight:bold'>From:</span></b> </span></font><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>nsrca-discussion-bounces@lists.nsrca.org</span></font><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> [mailto:</span></font><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>nsrca-discussion-bounces@lists.nsrca.org</span></font><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>] <b><span
style='font-weight:bold'>On Behalf Of </span></b>Del Rykert<br>
<b><span style='font-weight:bold'>Sent:</span></b> Sunday, March 02, 2008 1:23
PM<br>
<b><span style='font-weight:bold'>To:</span></b> </span></font><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>NSRCA Mailing
List</span></font><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma'><br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [NSRCA-discussion]
Speaking of 2.4GHz</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> </span></font></p>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=blue face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:blue'>I thought many wireless
devices were using the 2.4 GHz in homes and computer stuff. ? </span></font></p>
</div>
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style='font-size:10.0pt;font-family:Arial;color:blue'> </span></font></p>
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<p class=MsoNormal style='margin-left:.5in'><font size=2 color=blue face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:blue'> Del</span></font></p>
</div>
<blockquote style='border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in 4.0pt;
margin-left:3.75pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt'>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>----- Original Message ----- </span></font></p>
</div>
<div style='font-color:black'>
<p class=MsoNormal style='margin-left:.5in;background:#E4E4E4'><b><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial;font-weight:bold'>From:</span></font></b><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> <a
href="mailto:rbearden56@bellsouth.net" title="rbearden56@bellsouth.net">Randall
Bearden</a> </span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><b><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial;font-weight:bold'>To:</span></font></b><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> <a
href="mailto:nsrca-discussion@lists.nsrca.org"
title="nsrca-discussion@lists.nsrca.org">NSRCA Mailing List</a> </span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><b><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial;font-weight:bold'>Sent:</span></font></b><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> Sunday,
March 02, 2008 9:13 AM</span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><b><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial;font-weight:bold'>Subject:</span></font></b><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> Re:
[NSRCA-discussion] Speaking of 2.4GHz</span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> </span></font></p>
</div>
<p class=MsoNormal style='margin-right:0in;margin-bottom:12.0pt;margin-left:
.5in'><font size=1 face=Verdana><span style='font-size:9.0pt;font-family:Verdana'>On
3/1/08 1:49 AM, "John Pavlick" <<a
href="mailto:jpavlick@idseng.com">jpavlick@idseng.com</a>> wrote:</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=1 face=Arial><span
style='font-size:9.0pt;font-family:Arial'>Yeah, how many people experienced the
bug in the early Spektrum stuff? We didn't hear too much about that one. The
best part is they addressed it and used their resources to solve the problem
quickly. Futaba is going through their teething pains now. NOTHING is perfect.
It is in your best interest to use ANY new technology with extra caution until
it develops a proven track record. I would be a little "extra"
apprehensive about the XPS stuff only because it's not backed by large company
like Futaba, JR or Airtronics. Small companies tend to have a harder time
solving problems similar to the ones that we've seen with the Spektrum and
Futaba systems.<br>
</span></font><font size=1 face=Verdana><span style='font-size:9.0pt;
font-family:Verdana'><br>
</span></font><font size=1 face=Arial><span style='font-size:9.0pt;font-family:
Arial'>John Pavlick<br>
<a href="http://www.idseng.com">http://www.idseng.com</a><br>
</span></font><font size=1 face=Verdana><span style='font-size:9.0pt;
font-family:Verdana'><br>
<b><span style='font-weight:bold'>From:</span></b> Ed Alt <a
href="mailto:ed_alt@hotmail.com"><mailto:ed_alt@hotmail.com></a> </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=1 face=Verdana><span
style='font-size:9.0pt;font-family:Verdana'><br>
<b><span style='font-weight:bold'>To:</span></b> NSRCA Mailing List <a
href="mailto:nsrca-discussion@lists.nsrca.org"><mailto:nsrca-discussion@lists.nsrca.org></a>
<br>
<br>
<b><span style='font-weight:bold'>Sent:</span></b> Saturday, March 01, 2008
12:15 AM<br>
<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [NSRCA-discussion]
Speaking of 2.4GHz<br>
<br>
<br>
Spektrum is going to come out with Telemetry for airborne radios.
They've had it for years in their ground radios, so they have a
handle on it. I also like the fact that their lead engineer who
started the entire Spektrum line with Horizon came from Cypress
Semiconductor, the chip vendor for the Spektrum stuff. Futaba has a
great base of experience with Spread Spectrum. Their teething pains
seem to have more to do with re-packaging their existing technology in a
scramble to play catch-up with Spektrum. <br>
<br>
Every radio has problems here and there, as we've seen over the years
with 72 mHz gear, so when I hear that something just totally died in a
few isolated cases, it does not alarm me. However, "the big
3" have proven that they deliver good products overall and will
address problems that do exist. XPS on the other hand has made some
questionable claims and really has no solution to provide path diversity
for the receiver. If you look at Futaba and also Airtronics full
range SS receivers, they get path diversity from placing each antenna at
the end of thin coax leads that allow them to each have a unique RF
environment, much like Spektrum accomplishes with actual receivers at the
end of data leads that feed a central unit. <br>
<br>
If it was me trying to use XPS, I would spend a couple of years test
flying it in stuff I could afford to lose, same as I did with Spektrum
when it first came out. I wounded a foamy with a AR6100 receiver
that had an early firmware bug, which Horizon acknowledged and fixed. It
had nothing to do with radio reception; it was the one that would slap
down elevator and stay there. Nice! Since then, all of my
foamy kills have been directly traceable to my thumbs.<br>
<br>
Ed<br>
</span></font></p>
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<p class=MsoNormal style='margin-left:.5in'><font size=1 face=Verdana><span
style='font-size:9.0pt;font-family:Verdana'><br>
Date: Fri, 29 Feb 2008 14:17:06 -0800<br>
From: edvwhite@sbcglobal.net<br>
To: nsrca-discussion@lists.nsrca.org<br>
Subject: Re: [NSRCA-discussion] Speaking of 2.4GHz<br>
<br>
Ed,<br>
<br>
I've been digging into (ie, poking around RCU) for XPS issues and as is
usually the case find mostly secondhand and anecdotal problems along with
a few really unhappy people. I also find a lot of happy XPS users.
I am attracted to the XPS because it offers the future possibility
of telemetry, something I would like to play with. Lastly on the
Spektrum, I've seen only a handful of systems fly at our local field.
I've also seen two crashes on two different Spektrum systems due to
total loss of control, at close range. At least one of those
verified good battery voltage under load after the crash (the other one
didn't check). <br>
<br>
I know there are a huge number of satisfied Spektrum users. I know
of two locally who are not quite so satisfied. Neither ever did figure
out the reason for the loss of control. And with Futaba's recent
problem (which they have fixed), well I think we all have to realize
there is no bulletproof system. Just looking to see if people have
had problems with the XPS.<br>
<br>
Ed<br>
<br>
<b><i><span style='font-weight:bold;font-style:italic'>Ed Alt <ed_alt@hotmail.com></span></i></b>
wrote: <br>
</span></font></p>
<blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=1 face=Verdana><span
style='font-size:9.0pt;font-family:Verdana'> With a proven solution from
Spektrum / JR and with Futaba introducing what will undoubtedly be a
solid solution, why play with XPS? I can't think of any advantage
that it offers and it apparently has some issues to dig into and
understand. <br>
<br>
Ed<br>
<br>
<br>
</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=1 face=Verdana><span
style='font-size:9.0pt;font-family:Verdana'> </span></font></p>
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size=1 face=Verdana><span style='font-size:9.0pt;font-family:Verdana'>
<hr size=3 width="100%" align=center>
</span></font></div>
<p class=MsoNormal style='margin-left:.5in'><font size=1 face=Verdana><span
style='font-size:9.0pt;font-family:Verdana'>Date: Fri, 29 Feb 2008 08:44:14
-0800<br>
From: edvwhite@sbcglobal.net<br>
To: nsrca-discussion@lists.nsrca.org<br>
Subject: [NSRCA-discussion] Speaking of 2.4GHz<br>
<br>
Anybody have experience with the xtremelink systems?<br>
<br>
<a href="http://www.xtremepowersystems.net/">http://www.xtremepowersystems.net/</a><br>
<br>
Ed<br>
<br>
<b><i><span style='font-weight:bold;font-style:italic'>Ken Thompson
<kthompson@stx.rr.com></span></i></b> wrote: </span></font></p>
<p class=MsoNormal style='margin-right:0in;margin-bottom:12.0pt;margin-left:
.5in'><font size=1 face=Verdana><span style='font-size:9.0pt;font-family:Verdana'><br>
</span></font><font size=1 face=Arial><span style='font-size:9.0pt;font-family:
Arial'>That's pretty cool, thanks for bringing this to the list. I
saw this in the Flying Giants first thing this morning.</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=1 face=Verdana><span
style='font-size:9.0pt;font-family:Verdana'><br>
----- Original Message ----- <br>
<br>
<b><span style='font-weight:bold'>From:</span></b> Kevin Brice <a
href="mailto:kevinbrice@earthlink.net"><mailto:kevinbrice@earthlink.net></a>
<br>
<br>
<b><span style='font-weight:bold'>To:</span></b>
nsrca-discussion@lists.nsrca.org <br>
<br>
<b><span style='font-weight:bold'>Sent:</span></b> Thursday, February 28,
2008 11:25 AM<br>
<br>
<b><span style='font-weight:bold'>Subject:</span></b> [NSRCA-discussion] The
Great 2.4GHz DSM Giveaway<br>
<br>
<br>
<br>
<br>
</span></font><font size=2 color=navy face=Verdana><span style='font-size:10.0pt;
font-family:Verdana;color:navy'>For those on the 2.4 fence, this may
encourage you to upgrade to DSM.<br>
</span></font><font size=1 face=Verdana><span style='font-size:9.0pt;
font-family:Verdana'><br>
<br>
<br>
</span></font><font size=2 color=navy face=Verdana><span style='font-size:10.0pt;
font-family:Verdana;color:navy'>I am not sure if the html graphics will
show so here is the link to Spektrum’s Receiver Giveaway. <br>
</span></font><font size=1 face=Verdana><span style='font-size:9.0pt;
font-family:Verdana'><br>
</span></font><font size=2 color=navy face=Verdana><span style='font-size:10.0pt;
font-family:Verdana;color:navy'><a href="http://www.spektrumrc.com/giveaway/">http://www.spektrumrc.com/giveaway/</a>
<br>
</span></font><font size=1 face=Verdana><span style='font-size:9.0pt;
font-family:Verdana'><br>
<br>
<br>
<br>
<font color=navy><span style='color:navy'>Kevin Brice<br>
</span></font><br>
<font color=navy><span style='color:navy'>kevinbrice@earthlink.net <br>
</span></font><br>
<br>
<br>
</span></font></p>
<p align=center style='margin-left:.5in;text-align:center'><font size=1
face=Verdana><span style='font-size:9.0pt;font-family:Verdana'> </span></font></p>
<div class=MsoNormal align=center style='margin-left:.5in;text-align:center'><font
size=1 face=Verdana><span style='font-size:9.0pt;font-family:Verdana'>
<hr size=2 width="100%" align=center>
</span></font></div>
<p style='margin-left:.5in'><font size=1 face=Verdana><span style='font-size:
9.0pt;font-family:Verdana'><br>
</span></font><b><font size=2 face=Verdana><span style='font-size:10.0pt;
font-family:Verdana;font-weight:bold'>From:</span></font></b><font size=2
face=Verdana><span style='font-size:10.0pt;font-family:Verdana'> Spektrum
Signal [<a href="mailto:webmaster@spektrumrc.com%5d">mailto:webmaster@spektrumrc.com]</a>
<br>
<b><span style='font-weight:bold'>Sent:</span></b> Thursday, February 28,
2008 10:00 AM<br>
<b><span style='font-weight:bold'>To:</span></b> kevin@wenzlerarchitects.com<br>
<b><span style='font-weight:bold'>Subject:</span></b> The Great 2.4GHz
DSM Giveaway<br>
</span></font><font size=1 face=Verdana><span style='font-size:9.0pt;
font-family:Verdana'><br>
<br>
</span></font></p>
<p align=center style='margin-left:.5in;text-align:center'><font size=1
face=Verdana><span style='font-size:9.0pt;font-family:Verdana'>Having trouble
viewing this email? Click here. <a
href="http://publications.horizonhobby.com/read/archive?id=1223&e=kevin@wenzlerarchitects.com&x=99e8f192"><http://publications.horizonhobby.com/read/archive?id=1223&amp;e=kevin@wenzlerarchitects.com&amp;x=99e8f192></a>
</span></font></p>
<p align=center style='margin-left:.5in;text-align:center'><font size=1
face=Verdana><span style='font-size:9.0pt;font-family:Verdana'> <br>
</span></font></p>
<p style='margin-left:.5in'><font size=1 face=Verdana><span style='font-size:
9.0pt;font-family:Verdana'> </span></font></p>
<p align=center style='margin-left:.5in;text-align:center'><font size=1
face=Verdana><span style='font-size:9.0pt;font-family:Verdana'><br>
</span></font></p>
<p align=right style='margin-left:.5in;text-align:right'><font size=1
face=Verdana><span style='font-size:9.0pt;font-family:Verdana'> </span></font><b><font
size=1 face=Verdana><span style='font-size:7.5pt;font-family:Verdana;
font-weight:bold'>February 28, 2008 </span></font></b></p>
<p align=center style='margin-left:.5in;text-align:center'><font size=1
face=Verdana><span style='font-size:9.0pt;font-family:Verdana'><br>
<br>
<br>
</span></font></p>
<p style='margin-left:.5in'><font size=1 face=Verdana><span style='font-size:
9.0pt;font-family:Verdana'> </span></font></p>
<p style='margin-left:.5in'><font size=1 face=Verdana><span style='font-size:
9.0pt;font-family:Verdana'> </span></font></p>
<p style='margin-left:.5in'><font size=1 face=Verdana><span style='font-size:
9.0pt;font-family:Verdana'> </span></font></p>
<p align=center style='margin-left:.5in;text-align:center'><font size=1
face=Verdana><span style='font-size:9.0pt;font-family:Verdana'><br>
</span></font><font size=1 face=Verdana><span style='font-size:
7.5pt;font-family:Verdana'>PLEASE VISIT <font color=white><span
style='color:white'>WWW.SPEKTRUMRC.COM/GIVEAWAY</span></font> <a
href="http://publications.horizonhobby.com/t/322561/1056524/7046/0/"><http://publications.horizonhobby.com/t/322561/1056524/7046/0/></a>
FOR MORE INFORMATION<br>
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font-family:Verdana'><br>
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<b><span style='font-weight:bold'>Mailing Address:</span></b> Horizon
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Spektrum is used with permission from Bachmann Industries,
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<p class=MsoNormal style='margin-left:.5in'><font size=1 face=Verdana><span
style='font-size:9.0pt;font-family:Verdana'>Climb to the top of the charts!
Play the word scramble challenge with star power. Play now! <a
href="http://club.live.com/star_shuffle.aspx?icid=starshuffle_wlmailtextlink_jan"><http://club.live.com/star_shuffle.aspx?icid=starshuffle_wlmailtextlink_jan></a>
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</blockquote>
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style='font-size:9.0pt;font-family:Verdana'><br>
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<p class=MsoNormal style='margin-left:.5in'><font size=1 face=Verdana><span
style='font-size:9.0pt;font-family:Verdana'>I am curious what
“noise” from a house is detectable on a Spectrum Analyzer
tuned to a center frequency of 2.4 GHz? Not even a 900 MHz wireless phone
would even come close. Microwave? No wrong frequency, Wi Fi networks? No,
wrong frequency. Granted if you tune the analyzer’s center
frequency well beyond 2.4 you might be able to see other signals or noise but
the narrow bandwidth the 2.4 operates in and the clean signal/noise ratio
doesn’t lend itself to the idea of house noise causing interference.
Also, unless you can narrow the display bandwidth way down then you
won’t see any frequency “hopping”. The shift is very
close to the carrier and unless you know what to look for then you can miss it.
</span></font></p>
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style='font-size:9.0pt;font-family:Verdana'><br>
<br>
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<hr size=3 width="95%" align=center>
</span></font></div>
<p class=MsoNormal style='margin-left:.5in'><font size=1 face="Courier New"><span
style='font-size:7.0pt;font-family:"Courier New"'>_______________________________________________<br>
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size=3 face="Times New Roman"><span style='font-size:12.0pt'>
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</span></font></div>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>_______________________________________________<br>
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</blockquote>
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