<div dir="ltr">Boa tarde <br><br>Fui um dos primeiros a colocar um emissor destes no ar (NOV2016) e os testes são como o algodão...<br><br>Experimentei com 50 mW em 20 m e os resultados ditaram a manutenção do "antenório" actual.<br><br>Muito interessante para experimentar antenas...<br><br>@Francisco Costa<br><br>Vais ficar muito admirado com os resultados. Para o bem e para o mal... ;)<br><br>Vy 73<br><br>Pedro, CT1DBS/CU3HF<br><br><img class="spotlight" alt="Foto de Pedro Carvalho." src="https://scontent-lhr3-1.xx.fbcdn.net/v/t1.0-9/15219441_10206124776197144_916702133535838407_n.jpg?oh=345f3423f51d3659e68bdaea7174c7b9&oe=59163118"><br><br><br><img class="spotlight" alt="Foto de Pedro Carvalho." src="https://scontent-lhr3-1.xx.fbcdn.net/v/t31.0-8/15252570_10206124776677156_6024581829764520124_o.jpg?oh=1b089a3352a4051357997de5dd4599cb&oe=58E5C004" style=""><br><br><br><br><br><br>terça-feira, 10 de Janeiro de 2017 às 12:51:18 UTC, João Costa (CT1FBF) escreveu:<blockquote class="gmail_quote" style="margin: 0;margin-left: 0.8ex;border-left: 1px #ccc solid;padding-left: 1ex;">Testing HF antennas
<br>
<br>Testing HF antennas is a tricky thing to do. Simple on-air test are
<br>seldom conclusive and are more often than not, they are just plain
<br>confusing. SOTABEAMS has come up with a completely new way to test
<br>antennas, locations and to monitor propagation using the WSPR system.
<br>
<br>SOTABEAMS system consists of two parts; WSPRlite a WSPR beacon with
<br>electronic power control and DXplorer.net a data analysis website.
<br>
<br>WSPRlite sends a test transmission which is received by hundreds of
<br>stations across the world. DXplorer.net is a web based system that
<br>gathers these reports and presents them in a whole new way, allowing
<br>the user to check the DX performance of their antenna system. However,
<br>the real break-though is the ability to compare systems in real time
<br>and all over the world. DXplorer.net does this in a simple and
<br>intuitive way enabling you to see what difference changes to your
<br>antenna system really make to its DX performance.
<br>
<br>More information on WSPRlite and DXplorer.net is available at:
<br><a href="http://www.sotabeams.co.uk/wsprlite" target="_blank" rel="nofollow" onmousedown="this.href='http://www.google.com/url?q\x3dhttp%3A%2F%2Fwww.sotabeams.co.uk%2Fwsprlite\x26sa\x3dD\x26sntz\x3d1\x26usg\x3dAFQjCNGBeFwS1-83mM26QsfCBNDHcpueog';return true;" onclick="this.href='http://www.google.com/url?q\x3dhttp%3A%2F%2Fwww.sotabeams.co.uk%2Fwsprlite\x26sa\x3dD\x26sntz\x3d1\x26usg\x3dAFQjCNGBeFwS1-83mM26QsfCBNDHcpueog';return true;">http://www.sotabeams.co.uk/<wbr>wsprlite</a>
<br></blockquote></div>