{"id":5248,"date":"2022-01-12T10:44:00","date_gmt":"2022-01-11T23:44:00","guid":{"rendered":"https:\/\/www.homebrewradio.us\/blog\/2022\/01\/12\/looking-at-the-galaxys-spiral-arms-with-a-dongle-a-raspberry-piand-a-homebrew-antenna\/"},"modified":"2025-07-22T18:04:03","modified_gmt":"2025-07-22T08:04:03","slug":"looking-at-the-galaxys-spiral-arms-with-a-dongle-a-raspberry-piand-a-homebrew-antenna","status":"publish","type":"post","link":"https:\/\/www.homebrewradio.us\/blog\/2022\/01\/12\/looking-at-the-galaxys-spiral-arms-with-a-dongle-a-raspberry-piand-a-homebrew-antenna\/","title":{"rendered":"Looking at the Galaxy’s Spiral Arms with a Dongle, a Raspberry Pi,and a Homebrew Antenna"},"content":{"rendered":"
\n
\"\"<\/a><\/div>\n<\/div>\n
<\/div>\n

I told Farhan that the world NEEDS a homebrew Raspberry Pi observatory at Lamakaan in Hyderabad. They are on it. <\/p>\n

<\/div>\n
This looks very do-able. And fun. And UHF. And SDR. And Raspberry Pi. <\/div>\n
<\/div>\n
I’d like to build one too. I was encouraged by the video demo — it was done in Alexandria, Virginia, very close to where I live. <\/div>\n
<\/div>\n
A while back I was lamenting to Dean that I reluctantly threw away a DISH or DIRECT TV satellite TV antenna. I worried that I had discarded something that would have been useful for radio astronomy. Turns out I didn’t need it. This video and the associated .pdf shows how to look at the galaxy with a simple homebrew (Home Depot!) horn. <\/div>\n
<\/div>\n
https:\/\/www.gb.nrao.edu\/~<\/wbr>glangsto\/aas2020\/<\/wbr>Langston2020AasTelescopeWebina<\/wbr>r.mp4<\/a><\/div>\n
<\/div>\n
https:\/\/drive.google.com\/file\/<\/wbr>d\/1ssS_zBQWDEXMENc2_<\/wbr>aqqPGxGkEEU5Ea3\/view<\/a><\/div>\n
<\/div>\n
Thanks to Thomas K4SWL of the SWLing Post<\/a> for alerting us to this. <\/div>\n","protected":false},"excerpt":{"rendered":"

I told Farhan that the world NEEDS a homebrew Raspberry Pi observatory at Lamakaan in Hyderabad. They are on it. This looks very do-able. And fun. And UHF. And SDR. And Raspberry Pi. I’d like to build one too. I was encouraged by the video demo — it was done in Alexandria, Virginia, very close … Continue reading “Looking at the Galaxy’s Spiral Arms with a Dongle, a Raspberry Pi,and a Homebrew Antenna”<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":2900,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[30,179,40],"tags":[],"class_list":["post-5248","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-radio-astronomy","category-raspberry-pi","category-sdr"],"_links":{"self":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/5248","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/comments?post=5248"}],"version-history":[{"count":1,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/5248\/revisions"}],"predecessor-version":[{"id":5249,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/5248\/revisions\/5249"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media\/2900"}],"wp:attachment":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media?parent=5248"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/categories?post=5248"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/tags?post=5248"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}