{"id":3413,"date":"2023-01-21T15:59:19","date_gmt":"2023-01-21T23:59:19","guid":{"rendered":"https:\/\/digitalnigel.com\/wordpress\/?p=3413"},"modified":"2023-01-21T15:59:19","modified_gmt":"2023-01-21T23:59:19","slug":"gps-device-for-ntp-servers","status":"publish","type":"post","link":"https:\/\/digitalnigel.com\/wordpress\/?p=3413","title":{"rendered":"GPS Device for NTP Servers"},"content":{"rendered":"\n

I’ve made a few posts over the years about using GPS devices for precision timekeeping for NTP Stratum 1 servers, and recently the topic came up again with some colleagues to potentially build another one.<\/p>\n\n\n\n

My previous builds have been based on Raspberry Pi computers, but with the Pis currently being unobtainium, and some recent drama around their foundation, I got to thinking about alternatives for building a Stratum 1.<\/p>\n\n\n\n

Of course, you can buy Stratum 1 servers from various vendors, but their prices are much higher than I’m interested in. Likewise you can buy inexpensive off the shelf GPS devices to plug into USB or a serial port, but they often don’t properly expose the precise timing signals required. Mostly for the enjoyment of it, I decided to build a middle-ground device that would connect to either a USB or RS232 serial port, properly expose the timing signals, and pair it with some good documentation on how to set this up with any linux server.<\/p>\n\n\n\n

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The design, code, and instructions are open source. You can find them on my GitHub repository<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"

I’ve made a few posts over the years about using GPS devices for precision timekeeping for NTP Stratum 1 servers, and recently the topic came up again with some colleagues to potentially build another one. My previous builds have been … Continue reading →<\/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":[13,20,6],"tags":[],"class_list":["post-3413","post","type-post","status-publish","format-standard","hentry","category-electronics","category-projects","category-technology"],"_links":{"self":[{"href":"https:\/\/digitalnigel.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/3413","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=3413"}],"version-history":[{"count":1,"href":"https:\/\/digitalnigel.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/3413\/revisions"}],"predecessor-version":[{"id":3420,"href":"https:\/\/digitalnigel.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/3413\/revisions\/3420"}],"wp:attachment":[{"href":"https:\/\/digitalnigel.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3413"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/digitalnigel.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3413"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/digitalnigel.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3413"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}