{"id":1569,"date":"2018-09-22T03:53:16","date_gmt":"2018-09-22T01:53:16","guid":{"rendered":"http:\/\/www.ik0vve.net\/?p=1569"},"modified":"2018-09-22T04:05:36","modified_gmt":"2018-09-22T02:05:36","slug":"apa-lanmeteor-scatter-antenna-improving","status":"publish","type":"post","link":"https:\/\/www.ik0vve.net\/?p=1569","title":{"rendered":"APA – lan|Meteor scatter antenna improving"},"content":{"rendered":"

After about a month and a half from the beginning of the meteor scatter project with a satisfactory success, we wanted to make a small improvement to the reception system by doubling the antenna.
\nFrom the beginning the antenna was a four element 1.5 lambda boom length with a gain of about 8.5 dbd. We found it very performing so I quickly build a second one twin antenna.
\nThe total gain at the moment is increased to about 11 dbd, stacking between booms is only about 1 meter so to get a fatter main lobe, it’s not an ham radio DX antenna, for the project was better to get a wider capture area.
\nThe result was since the first start really impressive! The average per hour of the captured events was more than doubled immediately.
\nTake a look at the chart:
\n\"AntennaChart\"<\/a>
\nThe orange line represents the day with maximum recorded events in semptember with only one antenna, the blue line shows the first complete 24 working hours of the system with 2 antennas.
\nProbably the higher gain and the wider capture area give to the system many more and stronger echoes, what was under the noise level before is now a good signal to sample.
\nWhat follows is an example of what the receiver catch during a non-peak period:
\n\"meteorNow\"<\/a><\/p>\n

\"Antenna<\/a>
Antenna work in progress<\/figcaption><\/figure>\n
\"The<\/a>
The stacking at APA Observatory<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"

After about a month and a half from the beginning<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[13,119,118,84,73,74,117],"tags":[],"_links":{"self":[{"href":"https:\/\/www.ik0vve.net\/index.php?rest_route=\/wp\/v2\/posts\/1569"}],"collection":[{"href":"https:\/\/www.ik0vve.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ik0vve.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ik0vve.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ik0vve.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1569"}],"version-history":[{"count":9,"href":"https:\/\/www.ik0vve.net\/index.php?rest_route=\/wp\/v2\/posts\/1569\/revisions"}],"predecessor-version":[{"id":1582,"href":"https:\/\/www.ik0vve.net\/index.php?rest_route=\/wp\/v2\/posts\/1569\/revisions\/1582"}],"wp:attachment":[{"href":"https:\/\/www.ik0vve.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1569"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ik0vve.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1569"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ik0vve.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1569"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}