{"id":12071,"date":"2016-05-18T11:38:33","date_gmt":"2016-05-18T09:38:33","guid":{"rendered":"https:\/\/timingsense.com\/blog\/cronometraje-en-arena\/"},"modified":"2019-07-29T07:39:01","modified_gmt":"2019-07-29T07:39:01","slug":"beach-sand-affects-sports-timing","status":"publish","type":"post","link":"https:\/\/timingsense.com\/en\/blog\/beach-sand-affects-sports-timing\/","title":{"rendered":"Do you know how beach sand affects sports timing?"},"content":{"rendered":"<p><strong>Beach sand<\/strong> is formed by erosive processes in the oceans; water takes millions of years to break up rocks and shells, forming particles between 0.063 mm and 2 mm in size. Its composition can be silicates (minerals with quartz), carbonates of inorganic origin or biogenic fragments (CaCO3 such as limestone), volcanic rocks&#8230;<\/p>\n<p><strong>These compositions are usually non-conductive to electricity.<\/strong> A priori, we might think that, because of this, sand will not affect timing. But nothing could be further from the truth.<\/p>\n<p>Pure water, H2O, does not conduct electricity. But as soon as salts are added, it becomes conductive. Therefore, we can say that sea water is conductive without entering into what specific conductivity it has. <strong>Therefore, wet beach sand has a certain conductivity.<\/strong><\/p>\n<p>If we have wet sand on top of our timing antennas, not only are we not going to detect readings well, but we may even screw up the RFID reader because a lot of the energy it emits is going to come back to it because it is not transmitted.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter size-full wp-image-12082\" src=\"https:\/\/timingsense.com\/wp-content\/uploads\/2016\/05\/sports-timing-with-beach-sand.jpg\" alt=\"sports-timing-with-beach-sand\" width=\"1024\" height=\"623\" srcset=\"https:\/\/timingsense.com\/wp-content\/uploads\/2016\/05\/sports-timing-with-beach-sand.jpg 1024w, https:\/\/timingsense.com\/wp-content\/uploads\/2016\/05\/sports-timing-with-beach-sand-300x183.jpg 300w, https:\/\/timingsense.com\/wp-content\/uploads\/2016\/05\/sports-timing-with-beach-sand-768x467.jpg 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<p>On the other hand, <strong>although dry sand is not conductive, it affects tag reading as well<\/strong> as other non-conductive materials. In fact, it has a big impact.<\/p>\n<p>We have carried out an\u00a0<strong>experiment<\/strong><strong>\u00a0on the beach of several cases that can occur in any triathlon or open water race<\/strong> and we have grouped and ordered them from greater to lesser incidence in the tag readings. We have taken the <strong>timingsense<\/strong> antennas as a reference. Other timing systems will also be affected, especially by the sand on top of the timing point, but will be affected in a different way.<\/p>\n<ul>\n<li>In <strong>green<\/strong>, the options that virtually do not affect the reading and performance of the timing system.<\/li>\n<li>In <strong>yellow<\/strong>, the options that have an impact but would allow timing, even if you would need to check for possible loss of tag readings.<\/li>\n<li>In <strong>red<\/strong>, the options that make it impossible to time a race.<\/li>\n<\/ul>\n<p>Remember that theser are ordered according to how much they affect readings, from more to less.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-12092\" src=\"https:\/\/timingsense.com\/wp-content\/uploads\/2016\/05\/captura-de-pantalla-2018-07-26-a-las-15.51.53.png\" alt=\"results of the timing in sand experiment\" width=\"660\" height=\"168\" srcset=\"https:\/\/timingsense.com\/wp-content\/uploads\/2016\/05\/captura-de-pantalla-2018-07-26-a-las-15.51.53.png 660w, https:\/\/timingsense.com\/wp-content\/uploads\/2016\/05\/captura-de-pantalla-2018-07-26-a-las-15.51.53-300x76.png 300w\" sizes=\"(max-width: 660px) 100vw, 660px\" \/><\/p>\n<p>&nbsp;<\/p>\n<h2>Our conclusions<\/h2>\n<p><strong>Wet sand affects readings more than dry sand, but even dry sand can prevent good timing.<\/strong> Where it has a bigger impact is when it is at the top. This is logical because the antennas used in timing based on UHF technology usually have a ground plane at the bottom so that it does not affect the composition of the ground so much.<\/p>\n<p>Those of you who have used low or high frequency timing systems in the near field know what I am talking about and how a bad ground affects. I already talked about this in a previous post.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-12086\" src=\"https:\/\/timingsense.com\/wp-content\/uploads\/2016\/05\/timing-a-race-in-the-beach.jpg\" alt=\"timing-a-race-in-the-beach\" width=\"1024\" height=\"623\" srcset=\"https:\/\/timingsense.com\/wp-content\/uploads\/2016\/05\/timing-a-race-in-the-beach.jpg 1024w, https:\/\/timingsense.com\/wp-content\/uploads\/2016\/05\/timing-a-race-in-the-beach-300x183.jpg 300w, https:\/\/timingsense.com\/wp-content\/uploads\/2016\/05\/timing-a-race-in-the-beach-768x467.jpg 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<p>La arena h\u00fameda afecta m\u00e1s que la seca pero incluso la seca puede impedir la buena pr\u00e1ctica del cronometraje. Donde m\u00e1s afecta, es en la parte superior. Esto es l\u00f3gico porque las antenas que se usan en el cronometraje basadas en <strong>tecnolog\u00eda UHF<\/strong> suelen tener un plano de masa en la parte m\u00e1s inferior para que no afecte tanto la composici\u00f3n del suelo. Los que hab\u00e9is usado <strong>sistemas de cronometraje<\/strong> de baja o alta frecuencia en campo cercano, sab\u00e9is de lo que hablo y lo que afecta un mal suelo.\u00a0Ya hable de esto en un anterior <a href=\"\/?p=1012&amp;internal_campaign=ESblog-link\" target=\"_blank\" rel=\"noopener\">post<\/a>.<\/p>\n<p>Therefore, our recommendation is that if you are going to time on sand, use <strong>side antennas like the ones we sell with the Triathlon Pack<\/strong> or bring a good broom. \ud83d\ude42<\/p>\n<p><a href=\"https:\/\/timingsense.com\/en\/?internal_campaign=ENblog-banner\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-8730 size-full\" src=\"https:\/\/timingsense.com\/wp-content\/uploads\/2018\/05\/en-banner-post-min-1.png\" alt=\"\" width=\"800\" height=\"200\" srcset=\"https:\/\/timingsense.com\/wp-content\/uploads\/2018\/05\/en-banner-post-min-1.png 800w, https:\/\/timingsense.com\/wp-content\/uploads\/2018\/05\/en-banner-post-min-1-300x75.png 300w, https:\/\/timingsense.com\/wp-content\/uploads\/2018\/05\/en-banner-post-min-1-768x192.png 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a><\/p>\n<div\n    class=\"pld-like-dislike-wrap pld-custom\">\n    <div class=\"pld-like-wrap  pld-common-wrap\">\n    <a href=\"javascript:void(0)\"\n       class=\"pld-like-trigger pld-like-dislike-trigger \"\n       title=\"Me gusta\"\n       data-post-id=\"12071\"\n       data-trigger-type=\"like\"\n       data-restriction=\"cookie\"\n       data-already-liked=\"0\">\n                               <img src=\"https:\/\/timingsense.com\/wp-content\/uploads\/2023\/01\/pulgares-hacia-arriba.png\" alt=\"Me gusta\"\/>\n                        <\/a>\n    <span class=\"pld-like-count-wrap pld-count-wrap\">    <\/span>\n<\/div><div class=\"pld-dislike-wrap  pld-common-wrap\">\n    <a href=\"javascript:void(0)\"\n       class=\"pld-dislike-trigger pld-like-dislike-trigger \"\n       title=\"No me gusta\"\n       data-post-id=\"12071\"\n       data-trigger-type=\"dislike\"\n       data-restriction=\"cookie\"\n       data-already-liked=\"0\">\n                               <img src=\"https:\/\/timingsense.com\/wp-content\/uploads\/2023\/01\/disgusto.png\" alt=\"No me gusta\"\/>\n                        <\/a>\n    <span class=\"pld-dislike-count-wrap pld-count-wrap\"><\/span>\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Beach sand is formed by erosive processes in the oceans; water takes millions of years to break up rocks and shells, forming particles between 0.063 mm and 2 mm in size. Its composition can be silicates (minerals with quartz), carbonates of inorganic origin or biogenic fragments (CaCO3 such as limestone), volcanic rocks&#8230; These compositions are [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":6812,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[140],"tags":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.14 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Do you know how beach sand affects sports timing?<\/title>\n<meta name=\"description\" content=\"Both dry and wet beach sand can have a negative impact on your readings during a race. 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