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<title>Engadget - Comments for Raytheon live-demos DART-T Troposcatter communications</title>
<link>http://www.engadget.com/2007/02/13/raytheon-live-demos-dart-t-troposcatter-communications/</link>
<description>Engadget Comments for Raytheon live-demos DART-T Troposcatter communications</description>
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<generator>Blogsmith http://www.blogsmith.com/</generator><item><title><![CDATA[Comments on Raytheon live-demos DART-T Troposcatter communications]]></title><link>http://www.engadget.com/2007/02/13/raytheon-live-demos-dart-t-troposcatter-communications/</link><guid isPermaLink="true">http://www.engadget.com/2007/02/13/raytheon-live-demos-dart-t-troposcatter-communications/</guid><description><![CDATA[this is HAARP right ? microwaving the ionosphere to create energy n data streams seems the way we r headed .... we have always got the leftovers from military technology guess thats the silver lining of the dark war cloud]]></description><dc:creator><![CDATA[s i d]]></dc:creator><pubDate>Feb 13th 2007 5:27AM</pubDate></item><item><title><![CDATA[Comments on Raytheon live-demos DART-T Troposcatter communications]]></title><link>http://www.engadget.com/2007/02/13/raytheon-live-demos-dart-t-troposcatter-communications/</link><guid isPermaLink="true">http://www.engadget.com/2007/02/13/raytheon-live-demos-dart-t-troposcatter-communications/</guid><description><![CDATA[Troposcatter has been used here in Malayia for at least 15 years that I am aware of - Esso uses it to link their oil platforms to shore. I think bandwidth is prety poor though - 64kbps?]]></description><dc:creator><![CDATA[Dave]]></dc:creator><pubDate>Feb 13th 2007 6:15AM</pubDate></item><item><title><![CDATA[Comments on Raytheon live-demos DART-T Troposcatter communications]]></title><link>http://www.engadget.com/2007/02/13/raytheon-live-demos-dart-t-troposcatter-communications/</link><guid isPermaLink="true">http://www.engadget.com/2007/02/13/raytheon-live-demos-dart-t-troposcatter-communications/</guid><description><![CDATA[The big deal here is the 20Mbps.  Traditional troposcatter has been around since the 60's but only at rates of around 4Mbps.  Also, the DART-T gives you multi-band operation, not just in the 4.5 to 5 GHz range.  This was accomplished using the AN/TRC-170.  Linked here: <a href="http://www.globalsecurity.org/military/systems/aircraft/systems/an-trc-170.htm" rel="nofollow">http://www.globalsecurity.org/military/systems/aircraft/systems/an-trc-170.htm</a>]]></description><dc:creator><![CDATA[satguy]]></dc:creator><pubDate>Feb 13th 2007 8:04AM</pubDate></item><item><title><![CDATA[Comments on Raytheon live-demos DART-T Troposcatter communications]]></title><link>http://www.engadget.com/2007/02/13/raytheon-live-demos-dart-t-troposcatter-communications/</link><guid isPermaLink="true">http://www.engadget.com/2007/02/13/raytheon-live-demos-dart-t-troposcatter-communications/</guid><description><![CDATA[The TRC-170's are monsters.  2.2Kwatts+ out of the feed horn.  You could warm your chow-up in front of the dish.<br><br>I miss working on those things.<br><br><a href="http://www.vequalsir.com" rel="nofollow">http://www.vequalsir.com</a>]]></description><dc:creator><![CDATA[Thomas Trautman]]></dc:creator><pubDate>Feb 13th 2007 9:40AM</pubDate></item><item><title><![CDATA[Comments on Raytheon live-demos DART-T Troposcatter communications]]></title><link>http://www.engadget.com/2007/02/13/raytheon-live-demos-dart-t-troposcatter-communications/</link><guid isPermaLink="true">http://www.engadget.com/2007/02/13/raytheon-live-demos-dart-t-troposcatter-communications/</guid><description><![CDATA[AT&T used troposcatter as part of AUTOVON, back in the 60's.<br><br><a href="http://coldwar-c4i.net/ATT_Project/Buckingham/index.html" rel="nofollow">http://coldwar-c4i.net/ATT_Project/Buckingham/index.html</a>]]></description><dc:creator><![CDATA[Eleventeen]]></dc:creator><pubDate>Feb 13th 2007 12:29PM</pubDate></item><item><title><![CDATA[Comments on Raytheon live-demos DART-T Troposcatter communications]]></title><link>http://www.engadget.com/2007/02/13/raytheon-live-demos-dart-t-troposcatter-communications/</link><guid isPermaLink="true">http://www.engadget.com/2007/02/13/raytheon-live-demos-dart-t-troposcatter-communications/</guid><description><![CDATA[s i d:<br><br>HAARP is high altitude, ionosphere actually...which is hundreds of kilometers up. Troposphere is much lower, say 10 km, so it's less susceptible to interference and requires lower power transmitters.<br><br>The theory behind HAARP is a 'single bounce' technique...it actually requires making a 'dent' if you will, in the ionosphere. Tropospheric communications have multiple bounces.  Same principle, different execution. Basically the same way you can hear shortwave broadcasts around the world.]]></description><dc:creator><![CDATA[Drew]]></dc:creator><pubDate>Feb 13th 2007 12:34PM</pubDate></item><item><title><![CDATA[Comments on Raytheon live-demos DART-T Troposcatter communications]]></title><link>http://www.engadget.com/2007/02/13/raytheon-live-demos-dart-t-troposcatter-communications/</link><guid isPermaLink="true">http://www.engadget.com/2007/02/13/raytheon-live-demos-dart-t-troposcatter-communications/</guid><description><![CDATA[I'm with Satguy: this is evolutionary, not revolutionary. Tropo has been around for a long, long time. Without reading deeply it looks like modern waveforms and processing are finally being used- good for them, by all means, although it wouldn't be of much use in backing up comsats.<br>Anyone who mentions HAARP in this context is demonstrating their ignorance.]]></description><dc:creator><![CDATA[TrustButVerify]]></dc:creator><pubDate>Feb 15th 2007 12:41PM</pubDate></item></channel></rss>
