{"id":8528,"date":"2018-09-29T09:35:41","date_gmt":"2018-09-29T09:35:41","guid":{"rendered":"http:\/\/tech-ops.co.uk\/next\/?page_id=8528"},"modified":"2018-10-06T14:59:36","modified_gmt":"2018-10-06T14:59:36","slug":"source-synchronisation-technical-reprints","status":"publish","type":"page","link":"http:\/\/tech-ops.co.uk\/next\/source-synchronisation-technical-reprints\/","title":{"rendered":"Source Synchronisation Technical Reprints"},"content":{"rendered":"<p>All sources &#8211; basically up to the introduction of digital television transmission &#8211; had the recurrence frequency of their waveform generators locked to a common reference, which was the mans supply frequency, but the relative phase of their sync waveforms was random.  Sources which are not in time coincidence at the mixing point are termed &#8220;non-ssynch ronous &#8221; and can only be switched by cutting or fading to black. The alternative is to ensure that the signals are time-synchronous at the mixing point, to avoid roll-over and other objectionable effects.<\/p>\n<p><BR><BR><\/p>\n<p><TABLE width = \"100%\"><TR><TD width = \"25%\" ><a href=\"http:\/\/tech-ops.co.uk\/next\/wp-content\/uploads\/2018\/09\/survey-source-synchronisation.pdf\"><img decoding=\"async\" src=\"http:\/\/tech-ops.co.uk\/next\/wp-content\/uploads\/2018\/09\/source_sync_survey_cover-236x300.png\" alt=\"\" width=\"236\" height=\"300\" class=\"alignnone size-medium wp-image-8531\" srcset=\"http:\/\/tech-ops.co.uk\/next\/wp-content\/uploads\/2018\/09\/source_sync_survey_cover-236x300.png 236w, http:\/\/tech-ops.co.uk\/next\/wp-content\/uploads\/2018\/09\/source_sync_survey_cover.png 435w\" sizes=\"(max-width: 236px) 100vw, 236px\" \/><\/a><\/TD><TD ALIGN=TOP><a href=\"http:\/\/tech-ops.co.uk\/next\/wp-content\/uploads\/2018\/09\/survey-source-synchronisation.pdf\"><\/p>\n<h3>A Brief Survey of Source Synchronisation<\/h3>\n<p><\/a><\/TD><\/TR><\/TABLE><TABLE width = \"100%\"><TR><TD width = \"10%\" >&nbsp;<\/TD><TD width=\"*%\">Various methods of achieving source synchonisation at the mixing point are discusssed, including Slavelock and Genlock,  and, indeed, the use of standards conversion to provide synchronous sources<BR><BR><TABLE><TR><TD width=\"25%\"><I>Source:<\/I><\/TD><TD><em>[not known]<\/em> &#8211; typescript<TD><\/TR><TR><TD width=\"25%\"><I>Date:<\/I><\/TD><TD><B>3rd May 1963<\/B><\/TD><\/TR><\/TABLE><\/TD><\/TR><\/TABLE><\/p>\n<p><a href=\"http:\/\/tech-ops.co.uk\/next\/?p=8528\">Back to top<\/a><br \/>\n<br \/>\n<a href=\"http:\/\/tech-ops.co.uk\/next\/?p=8412\">Back to reprint index<\/a><\/p>\n<p><!-- Footer --><\/p>\n<h1>&nbsp;<\/h1>\n<p><img decoding=\"async\" class=\"aligncenter size-medium wp-image-1061\" src=\"http:\/\/tech-ops.co.uk\/next\/wp-content\/uploads\/2012\/07\/ianfootersmall-300x104.jpg\" alt=\"ianfootersmall\" width=\"300\" height=\"104\" srcset=\"http:\/\/tech-ops.co.uk\/next\/wp-content\/uploads\/2012\/07\/ianfootersmall-300x104.jpg 300w, http:\/\/tech-ops.co.uk\/next\/wp-content\/uploads\/2012\/07\/ianfootersmall.jpg 348w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><br \/>\n<!-- END Footer --><\/p>\n","protected":false},"excerpt":{"rendered":"<p>All sources &#8211; basically up to the introduction of digital television transmission &#8211; had the recurrence frequency of their waveform generators locked to a common reference, which was the mans supply frequency, but the relative phase of their sync waveforms &hellip; <a href=\"http:\/\/tech-ops.co.uk\/next\/source-synchronisation-technical-reprints\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":6,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","advgb_blocks_editor_width":"","advgb_blocks_columns_visual_guide":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"ngg_post_thumbnail":0,"footnotes":""},"categories":[],"tags":[],"class_list":["post-8528","page","type-page","status-publish","hentry"],"coauthors":[],"author_meta":{"author_link":"http:\/\/tech-ops.co.uk\/next\/author\/alec\/","display_name":"Alec Bray"},"relative_dates":{"created":"Posted 8 years ago","modified":"Updated 8 years ago"},"absolute_dates":{"created":"Posted on September 29, 2018","modified":"Updated on October 6, 2018"},"absolute_dates_time":{"created":"Posted on September 29, 2018 9:35 am","modified":"Updated on October 6, 2018 2:59 pm"},"featured_img_caption":"","featured_img":false,"series_order":"","_links":{"self":[{"href":"http:\/\/tech-ops.co.uk\/next\/wp-json\/wp\/v2\/pages\/8528","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/tech-ops.co.uk\/next\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/tech-ops.co.uk\/next\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/tech-ops.co.uk\/next\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"http:\/\/tech-ops.co.uk\/next\/wp-json\/wp\/v2\/comments?post=8528"}],"version-history":[{"count":6,"href":"http:\/\/tech-ops.co.uk\/next\/wp-json\/wp\/v2\/pages\/8528\/revisions"}],"predecessor-version":[{"id":8631,"href":"http:\/\/tech-ops.co.uk\/next\/wp-json\/wp\/v2\/pages\/8528\/revisions\/8631"}],"wp:attachment":[{"href":"http:\/\/tech-ops.co.uk\/next\/wp-json\/wp\/v2\/media?parent=8528"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/tech-ops.co.uk\/next\/wp-json\/wp\/v2\/categories?post=8528"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/tech-ops.co.uk\/next\/wp-json\/wp\/v2\/tags?post=8528"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}