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	<title>Amateur Radio Station K6JEB &#187; satellites</title>
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	<description>from beyond the horizon</description>
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		<title>The Antennas.us Quadrifilar Helix antenna works!!!</title>
		<link>http://www.k6jeb.com/2008/11/22/quadrifilar_helix_antenna_works</link>
		<comments>http://www.k6jeb.com/2008/11/22/quadrifilar_helix_antenna_works#comments</comments>
		<pubDate>Sun, 23 Nov 2008 01:01:14 +0000</pubDate>
		<dc:creator>Jack</dc:creator>
				<category><![CDATA[antennas]]></category>
		<category><![CDATA[satellites]]></category>

		<guid isPermaLink="false">http://www.k6jeb.com/?p=48</guid>
		<description><![CDATA[I recorded this right off the air using my new Quadrifilar Helix antenna from Antennas.us sitting about a foot above the ground (hi hi)outside. The one I got was with Right-Hand Circular Polarization (RHCP) and is rated for 50watts output. This is a recording of the LUSAT-OSCAR 19 (website) CW beacon which was on 437.120MHz: [...]]]></description>
			<content:encoded><![CDATA[<p>I recorded this right off the air using my new<br />
<a href="http://www.antennas.us/store/p/229-UC-4364-328-Amateur-Satellite-antenna.html">Quadrifilar Helix antenna</a> from <a href="http://www.antennas.us/">Antennas.us</a> sitting about a foot above the ground (<em>hi hi</em>)outside.  The one I got was with Right-Hand Circular Polarization (RHCP) and is rated for 50watts output.<a class="alignright" href="http://www.antennas.us/store/p/229-UC-4364-328-Amateur-Satellite-antenna.html"><img src="http://www.k6jeb.com/gallery2/main.php?g2_view=core.DownloadItem&amp;g2_itemId=3920&amp;g2_serialNumber=1" border="0" alt="Quadrifilar Helix Antenna" /></a><a class="alignright" href="http://www.k6jeb.com/gallery2/main.php?g2_itemId=3986"><img src="http://www.k6jeb.com/gallery2/main.php?g2_view=core.DownloadItem&amp;g2_itemId=3987&amp;g2_serialNumber=1" border="0" alt="Seriously, just a foot off the ground and this Quadrifilar Helix antenna netted me two new AO-51 QSOs" /></a><a class="alignright" href="http://www.k6jeb.com/gallery2/main.php?g2_itemId=3983"><img src="http://www.k6jeb.com/gallery2/main.php?g2_view=core.DownloadItem&amp;g2_itemId=3984&amp;g2_serialNumber=1" border="0" alt="and here's my laughable transmitting antenna, just a 5/8 wave on the patio table" /></a></p>
<p>This is a recording of the LUSAT-OSCAR 19 (<a href="http://www.amsat.org/amsat-new/satellites/satInfo.php?satID=12&amp;retURL=/satellites/status.php">website</a>) CW beacon which was on 437.120MHz:</p>
<p><a href="http://www.k6jeb.com/wp-content/uploads/lusat-oscar_19_20081123_1615_web.mp3">LUSAT-OSCAR 19 20081123 1615UTC</a></p>
<p>Then Cubesat OSCAR-57 flew over:<br />
<a href="http://www.k6jeb.com/wp-content/uploads/cubesat-oscar_57_20081122_0153utc.mp3">cubesat-oscar_57_20081123_0153utc</a></p>
<p>The highlight of the evening was two <a href="http://www.k6jeb.com/wp-content/uploads/ao-51_w6bvb_wd9ewk_k6jeb_2008_11_23_02_35.mp3">AO-51 QSOs with W6BVB and WD9EWK</a>!  The <strong>Quadrifilar Helix antenna works</strong>!</p>
<p>I need to mount it high up.  I could tell the house was in the way based on the angle and elevation <img src="http://www.k6jeb.com/gallery2/main.php?g2_view=core.DownloadItem&amp;g2_itemId=3922&amp;g2_serialNumber=2" alt="VO-52" align="right" />and sudden drop on where the house is.  Otherwise I believe I picked-up AOS at around 15 degrees elevation, which is quite right from the ground in the back yard and with the tall trees in that direction.  I&#8217;m very happy!  I was using 50 watts into a 5/8 vertical for my output on 2m.</p>
<p>I keep coming back and updating this blog entry with more sounds I record from this antenna.  What a blast this has been.  It&#8217;s like someone tore open a hole into space so I can actually hear.  Here&#8217;s some Morse telemetry from RS-22 (<a href="http://www.amsat.org/amsat-new/satellites/satInfo.php?satID=76&amp;retURL=satellites/all_oscars.php">website</a>):<br />
<a href="http://www.k6jeb.com/wp-content/uploads/rs-22_20081123_0625.mp3">RS-22 20081123 0625UTC</a></p>
<p>For software, I&#8217;m tracking the satellites with <a href="http://www.stoff.pl/">Orbitron</a>.  Once I decide which bird to track, I switch over to the Ham Radio Deluxe Satellite Tracker which comes as a part of the awesome <a href="http://www.ham-radio-deluxe.com/">Ham Radio Deluxe suite</a>; this I use for frequency control.  I&#8217;m still mastering the linear inverting transponder for VO-52 but I have already successfully tuned-in a couple passes already; seems to be an active bird.<br />
<a href="http://www.stoff.pl/"><img src="http://www.k6jeb.com/gallery2/main.php?g2_view=core.DownloadItem&amp;g2_itemId=3927&amp;g2_serialNumber=2" alt="Orbitron" align="left" border="0" /></a><a href="http://www.ham-radio-deluxe.com/Programs/HRDSatelliteTracking/tabid/97/Default.aspx"><img src="http://www.k6jeb.com/gallery2/main.php?g2_view=core.DownloadItem&amp;g2_itemId=3933&amp;g2_serialNumber=1" alt="Ham Radio Deluxe Sat Tracker"  border="0" align="right" /></a></p>
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