/members-area/personalblogs/b/nexgen-flight-simuator/posts/nexgen-component-documentation-annunciator-selcal-customNexGen: Component Documentation: Annunciator, SELCAL, Custom SELCAL is a signaling method that can alert an individual aircraft that a ground station wishes to communicate with it even if the radios are muted. SELCAL signals can be transmitted over een-USTelligent Community 12https://community.element14.com/members-area/personalblogs/b/nexgen-flight-simuator/posts/nexgen-component-documentation-annunciator-selcal-customWed, 30 Nov 2022 18:10:41 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:2a2850e1-8b53-4c52-8680-792cc46e8365Jan Cumps1<p>Side story: my first IT job was a c++ developer in a company that wrote software for aviation, rail and harbor industry. One aspect was in-flight aircraft communication (ACARS). I never worked on that :).</p> <p>There are still a few screen shots online of software I wrote in the mid-90s for airport ground handling and management of the now defuct German Mitropa railroad company.</p> <p><img src="/resized-image/__size/1280x720/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-2a2850e1-8b53-4c52-8680-792cc46e8365/pastedimage1669831698931v1.jpeg" alt=" " /></p> <p><img src="/resized-image/__size/1280x720/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-2a2850e1-8b53-4c52-8680-792cc46e8365/pastedimage1669831719918v2.jpeg" alt=" " /></p> <p><img src="/resized-image/__size/1280x720/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-2a2850e1-8b53-4c52-8680-792cc46e8365/pastedimage1669831764513v3.jpeg" alt=" " /></p> <p><img src="/resized-image/__size/1280x720/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-2a2850e1-8b53-4c52-8680-792cc46e8365/pastedimage1669831784777v4.jpeg" alt=" " /></p> <p>image source: <a href="https://www.rekencentra.be/software/our-solutions/flight-operations" rel="noopener noreferrer" target="_blank">B.Rekencenta N.V.<br /></a>software: me</p> <p></p><img src="https://community.element14.com/aggbug?PostID=24866&AppID=300&AppType=Weblog&ContentType=0" width="1" height="1">https://community.element14.com/members-area/personalblogs/b/nexgen-flight-simuator/posts/nexgen-component-documentation-annunciator-selcal-customWed, 30 Nov 2022 16:44:16 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:2a2850e1-8b53-4c52-8680-792cc46e8365javagoza0<p>Very interesting. It seems like a code elaborated to solve a concrete problem in some quite complicated conditions. The wikipedia article on this encoding is also curious. <a id="" href="https://en.wikipedia.org/wiki/SELCAL">https://en.wikipedia.org/wiki/SELCAL</a></p><img src="https://community.element14.com/aggbug?PostID=24866&AppID=300&AppType=Weblog&ContentType=0" width="1" height="1">