{"id":1519,"date":"2019-11-03T10:06:39","date_gmt":"2019-11-03T10:06:39","guid":{"rendered":"http:\/\/rktelesystem.com\/rktplgroup\/?p=1519"},"modified":"2019-11-03T10:06:39","modified_gmt":"2019-11-03T10:06:39","slug":"two-way-satellite-time-and-frequency-transfer-twstft","status":"publish","type":"post","link":"https:\/\/rktelesystem.com\/rktplgroup\/two-way-satellite-time-and-frequency-transfer-twstft\/","title":{"rendered":"Two-way Satellite Time and Frequency Transfer (TWSTFT)"},"content":{"rendered":"<p style=\"text-align: justify;\">Two-way satellite time and frequency transfer (TWSTFT) is one of the time and frequency transfer methods which contributes to the generation of Coordinated Universal Time. A pair of earth stations transmits and receives CDMA (Code Division Multiple Access) signals through a geostationary communication satellite and is connected to a reference signal.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-4030 size-full aligncenter\" src=\"https:\/\/rktelesystem.com\/global\/wp-content\/uploads\/2019\/08\/twstftblock.gif\" alt=\"\" width=\"598\" height=\"554\" \/><\/p>\n<table style=\"width: 100%; border-collapse: collapse; border-style: none; border-color: #ffffff;\" border=\"1\">\n<tbody>\n<tr>\n<td style=\"width: 51.9096%; vertical-align: top;\"><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-4028 aligncenter\" src=\"https:\/\/rktelesystem.com\/global\/wp-content\/uploads\/2019\/08\/twst-300x146.png\" alt=\"\" width=\"169\" height=\"82\" \/><\/p>\n<p style=\"text-align: center;\">TWSTFT Modem for Earth Station A<\/p>\n<\/td>\n<td style=\"width: 48.0904%; vertical-align: top;\"><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-4028 aligncenter\" src=\"https:\/\/rktelesystem.com\/global\/wp-content\/uploads\/2019\/08\/twst-300x146.png\" alt=\"\" width=\"164\" height=\"80\" \/><\/p>\n<p style=\"text-align: center;\">TWSTFT Modem for Earth Station B<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>Satellite Time and Ranting Equipment (SATRE)<\/strong><\/p>\n<ul>\n<li>1 \u2013 3 receiver channels<\/li>\n<li>Automated measurements<\/li>\n<li>Operates unmanned, 24 \/ 7<\/li>\n<li>Remote control over TCP\/IP<\/li>\n<li>Data transfer via TWSTFT link from remote site<\/li>\n<li>Sub-nanosecond precision TWSTFT with real time results<\/li>\n<li>Internal measurement database for the last three months on a one minute basis<\/li>\n<\/ul>\n<p style=\"text-align: justify;\">A TWTFT modem is capable of synchronizing a slave station clock to an accuracy of less than 5 ns with respect to the Master&#8217;s reference clock. Moreover, in the absence of the satellite link, once synchronized, the Modem can keep the time accurate to less than one microsecond over the next 24 hours.<\/p>\n<p><strong>Applications<\/strong><\/p>\n<ul>\n<li>Synchronization of one station clock to a remote Master station clock at nanosecond accuracy via a satellite link<\/li>\n<li>Comparison of a station clock reference to a remote station Clock reference for time keeping purpose<\/li>\n<\/ul>\n<p><strong>For Further Information<\/strong><\/p>\n<p>Please\u00a0<a href=\"https:\/\/rktelesystem.com\/rktplgroup\/contact\/\">Contact Us<\/a>\u00a0for more information.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Two-way satellite time and frequency transfer (TWSTFT) is one of the time and frequency transfer methods which contributes to the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"sfsi_plus_gutenberg_text_before_share":"","sfsi_plus_gutenberg_show_text_before_share":"","sfsi_plus_gutenberg_icon_type":"","sfsi_plus_gutenberg_icon_alignemt":"","sfsi_plus_gutenburg_max_per_row":"","footnotes":""},"categories":[18],"tags":[],"class_list":["post-1519","post","type-post","status-publish","format-standard","hentry","category-time-synchronization"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/rktelesystem.com\/rktplgroup\/wp-json\/wp\/v2\/posts\/1519","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rktelesystem.com\/rktplgroup\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rktelesystem.com\/rktplgroup\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rktelesystem.com\/rktplgroup\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/rktelesystem.com\/rktplgroup\/wp-json\/wp\/v2\/comments?post=1519"}],"version-history":[{"count":0,"href":"https:\/\/rktelesystem.com\/rktplgroup\/wp-json\/wp\/v2\/posts\/1519\/revisions"}],"wp:attachment":[{"href":"https:\/\/rktelesystem.com\/rktplgroup\/wp-json\/wp\/v2\/media?parent=1519"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rktelesystem.com\/rktplgroup\/wp-json\/wp\/v2\/categories?post=1519"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rktelesystem.com\/rktplgroup\/wp-json\/wp\/v2\/tags?post=1519"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}