{"id":203,"date":"2025-10-12T20:53:56","date_gmt":"2025-10-12T19:53:56","guid":{"rendered":"https:\/\/willwoodman.co.uk\/wordpress\/?p=203"},"modified":"2025-11-19T21:17:23","modified_gmt":"2025-11-19T21:17:23","slug":"proppy-propagation-prediction","status":"publish","type":"post","link":"https:\/\/willwoodman.co.uk\/wordpress\/2025\/10\/12\/proppy-propagation-prediction\/","title":{"rendered":"Proppy Propagation Prediction"},"content":{"rendered":"\n<p>Proppy is a simple to use web-based propagation prediction tool which allows users to predict HF propagation conditions, select appropriate HF frequencies for point to point links and understand what geographic coverage they can expect to achieve with their transmitter across time for a given frequency. The below shows how to use the basic functionality of Proppy \u2013 leave advanced settings at defaults.<\/p>\n\n\n\n<p><br><strong>Proppy HF Circuit Prediction: Area<\/strong><br><br>The area tool shows predicted coverage for a transmitter and how it varies over time. Darker reds show higher reliability of communications.<br><a rel=\"noreferrer noopener\" href=\"https:\/\/soundbytes.asia\/proppy\/area\" target=\"_blank\">https:\/\/soundbytes.asia\/proppy\/area<\/a><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" width=\"461\" height=\"399\" src=\"https:\/\/willwoodman.co.uk\/wordpress\/wp-content\/uploads\/image-2.png\" alt=\"\" class=\"wp-image-211\" srcset=\"https:\/\/willwoodman.co.uk\/wordpress\/wp-content\/uploads\/image-2.png 461w, https:\/\/willwoodman.co.uk\/wordpress\/wp-content\/uploads\/image-2-300x260.png 300w\" sizes=\"(max-width: 461px) 100vw, 461px\" \/><\/figure>\n\n\n\n<p><br><strong>Proppy HF Circuit Prediction: Point-to-Point<\/strong><br><br>This tool is used to predict the best frequencies to use throughout the day for point to point links: The output graph shows predicted<br>reliability vs freq\/time. Frequencies should be selected in the dark red band.<br><a rel=\"noreferrer noopener\" href=\"https:\/\/soundbytes.asia\/proppy\/p2\" target=\"_blank\">https:\/\/soundbytes.asia\/proppy\/p2<\/a><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" width=\"444\" height=\"402\" src=\"https:\/\/willwoodman.co.uk\/wordpress\/wp-content\/uploads\/image-3.png\" alt=\"\" class=\"wp-image-213\" srcset=\"https:\/\/willwoodman.co.uk\/wordpress\/wp-content\/uploads\/image-3.png 444w, https:\/\/willwoodman.co.uk\/wordpress\/wp-content\/uploads\/image-3-300x272.png 300w\" sizes=\"(max-width: 444px) 100vw, 444px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Proppy is a simple to use web-based propagation prediction tool which allows users to predict HF propagation conditions, select appropriate HF frequencies for point to point links and understand what geographic coverage they can expect to achieve with their transmitter across time for a given frequency. The below shows how to use the basic functionality [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":164,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[9,8],"tags":[],"_links":{"self":[{"href":"https:\/\/willwoodman.co.uk\/wordpress\/wp-json\/wp\/v2\/posts\/203"}],"collection":[{"href":"https:\/\/willwoodman.co.uk\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/willwoodman.co.uk\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/willwoodman.co.uk\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/willwoodman.co.uk\/wordpress\/wp-json\/wp\/v2\/comments?post=203"}],"version-history":[{"count":2,"href":"https:\/\/willwoodman.co.uk\/wordpress\/wp-json\/wp\/v2\/posts\/203\/revisions"}],"predecessor-version":[{"id":214,"href":"https:\/\/willwoodman.co.uk\/wordpress\/wp-json\/wp\/v2\/posts\/203\/revisions\/214"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/willwoodman.co.uk\/wordpress\/wp-json\/wp\/v2\/media\/164"}],"wp:attachment":[{"href":"https:\/\/willwoodman.co.uk\/wordpress\/wp-json\/wp\/v2\/media?parent=203"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/willwoodman.co.uk\/wordpress\/wp-json\/wp\/v2\/categories?post=203"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/willwoodman.co.uk\/wordpress\/wp-json\/wp\/v2\/tags?post=203"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}