{"id":5969,"date":"2012-04-01T11:20:24","date_gmt":"2012-04-01T17:20:24","guid":{"rendered":"http:\/\/sanantoniohams.org\/blog\/?p=5969"},"modified":"2012-04-01T11:31:26","modified_gmt":"2012-04-01T17:31:26","slug":"around-the-world-28-mhz-balloon-0329","status":"publish","type":"post","link":"http:\/\/sanantoniohams.org\/blog\/?p=5969","title":{"rendered":"Around the World 28 MHz Balloon &#8211; 03\/29"},"content":{"rendered":"<p><a href=\"http:\/\/aprs.org\/balloons.html\"><img decoding=\"async\" loading=\"lazy\" class=\"alignright size-full wp-image-5970\" style=\"margin: 5px; border-width: 0px;\" title=\"Balloon_Launch_2012-03-29\" src=\"http:\/\/sanantoniohams.org\/blog\/wp-content\/uploads\/2012\/04\/Balloon_Launch_2012-03-29.jpg\" alt=\"http:\/\/aprs.org\/balloons.html\" width=\"356\" height=\"456\" srcset=\"http:\/\/sanantoniohams.org\/blog\/wp-content\/uploads\/2012\/04\/Balloon_Launch_2012-03-29.jpg 356w, http:\/\/sanantoniohams.org\/blog\/wp-content\/uploads\/2012\/04\/Balloon_Launch_2012-03-29-156x200.jpg 156w, http:\/\/sanantoniohams.org\/blog\/wp-content\/uploads\/2012\/04\/Balloon_Launch_2012-03-29-273x350.jpg 273w\" sizes=\"(max-width: 356px) 100vw, 356px\" \/><\/a>From QRZ.Com comes the following information about another balloon launch that happened on March 29th.\u00a0 This balloon isn&#8217;t using APRS, but has a QRP 10 meters CW beacon.\u00a0\u00a0 Thanks Greg N5XO for bringing it to our attention &#8211; Lee N5NTG<\/p>\n<p>A long duration balloon mission that is using <strong>6 Party Balloons<\/strong> to carry a 50 gram amateur radio 28.223 MHz CW beacon, is hoping to go around the world.\u00a0 The ballon was released at 2330 UT (1930 EDT) March 29, from Annapolis in Maryland and started it&#8217;s journey heading SE at 6 knots. By 0300 UT, March 30, it had reached a speed of 60 MPH (96 km\/h).\u00a0 It has no APRS, just the 28.223 MHz CW telemetry system and it is hoped to locate it by signal strength and beam headings only.\u00a0<\/p>\n<blockquote><p>Note: Wind projections show the balloon heading east over the Atlantic Ocean, but with band openings, who knows? Even Greg N5XO might luck out and hear it&#8230; LOL<\/p><\/blockquote>\n<p>The mission is to give an insight into constant-pressure balloons and especially the use of common mylar party balloons as a fixed volume envelope. Unfortunately, these balloons have a high mass and so the theoretical maximum altitude no matter how many balloons are used is only about 26,000 feet and that is with no payload other than the fixed balloon mass.<\/p>\n<p>The payload weighs about 50 grams. The team are targeting 6 party balloons 3&#8242; in diameter which should give a float altitude around 16,000 feet. The Telemetry will be in CW on 28.223 MHz (USB DIAL) and will contain Battery voltage, inside and outside temperatures, and surface luminosity of the ocean\/clouds. It has no GPS. The team will rely entirely on DF bearings and signal reports.<\/p>\n<p><!--more--><br \/>\nEMAIL DF reports to <a href=\"mailto:W3ADO@homeside.to\">W3ADO@homeside.to<\/a><br \/>\nBe sure to include:<br \/>\nYour LAT\/LONG<br \/>\nTime of observation<br \/>\nQuality of heading (subjective 1 to 10)<br \/>\nThe CW string copied<\/p>\n<p>If you have APRS you can uplink your beam heading via APRS.\u00a0 As the balloon is only flying at 16,000 feet or so it will be vulnerable to weather. The battery is expected to have a lifetime of about 10 days.<\/p>\n<p>Further information including details of CW telemetry at <a href=\"http:\/\/aprs.org\/balloons.html\" target=\"_blank\">http:\/\/aprs.org\/balloons.html<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>From QRZ.Com comes the following information about another balloon launch that happened on March 29th.\u00a0 This balloon isn&#8217;t using APRS, but has a QRP 10 meters CW beacon.\u00a0\u00a0 Thanks Greg N5XO for bringing it to our attention &#8211; Lee N5NTG A long duration balloon mission that is using 6 Party Balloons to carry a 50 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[685],"tags":[541],"_links":{"self":[{"href":"http:\/\/sanantoniohams.org\/blog\/index.php?rest_route=\/wp\/v2\/posts\/5969"}],"collection":[{"href":"http:\/\/sanantoniohams.org\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/sanantoniohams.org\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/sanantoniohams.org\/blog\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/sanantoniohams.org\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5969"}],"version-history":[{"count":3,"href":"http:\/\/sanantoniohams.org\/blog\/index.php?rest_route=\/wp\/v2\/posts\/5969\/revisions"}],"predecessor-version":[{"id":5972,"href":"http:\/\/sanantoniohams.org\/blog\/index.php?rest_route=\/wp\/v2\/posts\/5969\/revisions\/5972"}],"wp:attachment":[{"href":"http:\/\/sanantoniohams.org\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5969"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/sanantoniohams.org\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5969"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/sanantoniohams.org\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5969"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}