{"id":1556,"date":"2013-05-26T17:33:32","date_gmt":"2013-05-27T00:33:32","guid":{"rendered":"http:\/\/digitalnigel.com\/wordpress\/?p=1556"},"modified":"2013-05-26T17:46:22","modified_gmt":"2013-05-27T00:46:22","slug":"iris-transmitter-cold-test","status":"publish","type":"post","link":"https:\/\/digitalnigel.com\/wordpress\/?p=1556","title":{"rendered":"IRIS Transmitter Cold Test"},"content":{"rendered":"<p>I&#8217;m going to be flying one of my transmitters soon on a weather balloon, so I wanted to make sure it would work properly at the cold temperatures normally experienced there. So I went over to the local Fred Meyer and grabbed a block of dry ice. I stuck the block and my transmitter in a cooler overnight, and watched the data roll in.<\/p>\n<p>Looks like the onboard temperature sensor got down to about -50C and the board ran quite happily. Looks like I&#8217;ll be good to go for the flight.<\/p>\n<p>Here&#8217;s a photo of it covered in a bit of frost right after I took it out of the cooler.<\/p>\n<p><a href=\"http:\/\/digitalnigel.com\/wordpress\/wp-content\/uploads\/2013\/05\/IMG_1364.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/digitalnigel.com\/wordpress\/wp-content\/uploads\/2013\/05\/IMG_1364-225x300.jpg\" alt=\"IMG_1364\" width=\"225\" height=\"300\" class=\"aligncenter size-medium wp-image-1557\" srcset=\"https:\/\/digitalnigel.com\/wordpress\/wp-content\/uploads\/2013\/05\/IMG_1364-225x300.jpg 225w, https:\/\/digitalnigel.com\/wordpress\/wp-content\/uploads\/2013\/05\/IMG_1364-112x150.jpg 112w, https:\/\/digitalnigel.com\/wordpress\/wp-content\/uploads\/2013\/05\/IMG_1364-768x1024.jpg 768w\" sizes=\"auto, (max-width: 225px) 100vw, 225px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>I&#8217;m going to be flying one of my transmitters soon on a weather balloon, so I wanted to make sure it would work properly at the cold temperatures normally experienced there. So I went over to the local Fred Meyer &hellip; <a href=\"https:\/\/digitalnigel.com\/wordpress\/?p=1556\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13,10,6],"tags":[],"class_list":["post-1556","post","type-post","status-publish","format-standard","hentry","category-electronics","category-ham-radio","category-technology"],"_links":{"self":[{"href":"https:\/\/digitalnigel.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/1556","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/digitalnigel.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/digitalnigel.com\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/digitalnigel.com\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/digitalnigel.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1556"}],"version-history":[{"count":4,"href":"https:\/\/digitalnigel.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/1556\/revisions"}],"predecessor-version":[{"id":1560,"href":"https:\/\/digitalnigel.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/1556\/revisions\/1560"}],"wp:attachment":[{"href":"https:\/\/digitalnigel.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1556"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/digitalnigel.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1556"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/digitalnigel.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1556"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}