{"id":846,"date":"2016-12-20T08:29:56","date_gmt":"2016-12-20T07:29:56","guid":{"rendered":"http:\/\/www.ik0vve.net\/?p=846"},"modified":"2019-06-19T15:05:10","modified_gmt":"2019-06-19T13:05:10","slug":"meteors-radar","status":"publish","type":"post","link":"http:\/\/www.ik0vve.net\/?p=846","title":{"rendered":"Meteors Radar"},"content":{"rendered":"

In these last days I focused my free time to meteors radar by French GRAVES VHF Radar transmitter. The new page is here:\u00a0Meteors Radar<\/a>.<\/p>\n

On this page you can find a 3 minutes auto-refresh picture almost real time. Just under a statistics image of received meteors signals.<\/p>\n

At the moment the system is composed by a desktop PC with a simple RTL-USB SDR receiver and a LPDA V-UHF antenna.<\/del><\/p>\n

The system is from august 2018 located at APA-lan observatory<\/a> in Latina (@41.4271884,12.8849969).<\/p>\n

\"apa\"<\/a>More hardware and software detail of the project on page: www.ik0vve.net\/?p=1541<\/a><\/p>\n

What the page shows?<\/h3>\n

I must for first thanks mister Simon Dawes<\/strong> that shared the original Conditional Action<\/a> for SpectrumLab that I modified for my purposes.<\/em><\/p>\n

At the top of the page we can see the 3\u00a0<\/del> 6 minutes real time grabber image. The center of the image is at about 143.050 MHz: the GRAVES transmitter frequency.
\nFor any positive sample you can read some data just after the meteor echoes:<\/del>
\n Date&Time, Signal strength, Noise, Frequency, Time Length, S\/N ratio.<\/strong><\/del><\/p>\n

Just under there is an image of RMOB Lab<\/a> (Radio Meteor Observatory’s On Line) where the system sends data for colorgramme compilation.<\/p>\n

At the bottom a 6 hours plot shows a pair of parameters analized in the time domain: the Signal Strength of the echoes and the Time Length of the same echoes. It’s so possible to see at a glance not only the quantity of events but also the strength of them.<\/del>
\n Strength is in dB (absolute and not relative to noise floor), Time is a number derived from Conditional Action cycles, so 25 is about 6 seconds. Only longer events than 6 seconds are saved into the images gallery.<\/del><\/p>\n

Updated on June 19th 2019<\/p>\n","protected":false},"excerpt":{"rendered":"

In these last days I focused my free time to<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[75,83,73,82,74],"tags":[],"_links":{"self":[{"href":"http:\/\/www.ik0vve.net\/index.php?rest_route=\/wp\/v2\/posts\/846"}],"collection":[{"href":"http:\/\/www.ik0vve.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.ik0vve.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.ik0vve.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.ik0vve.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=846"}],"version-history":[{"count":7,"href":"http:\/\/www.ik0vve.net\/index.php?rest_route=\/wp\/v2\/posts\/846\/revisions"}],"predecessor-version":[{"id":9756,"href":"http:\/\/www.ik0vve.net\/index.php?rest_route=\/wp\/v2\/posts\/846\/revisions\/9756"}],"wp:attachment":[{"href":"http:\/\/www.ik0vve.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=846"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.ik0vve.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=846"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.ik0vve.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=846"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}