<div dir="ltr"><h1>Android Propagation Tool</h1><p><strong> WSPR World Watch</strong> is a free Android app that plots real-time HF band propagation conditions on a map of the world. </p><p align="center"><img src="https://lh4.ggpht.com/mn2UkieIdOwfOte-ukLAXvszqe09sVlgHnTU6J-fSNiNLNkAhjlZjt1JiQhsAdZlepGD=h310"></p><p>See <a href="https://play.google.com/store/apps/details?id=xxx.wspr.g4swy" target="_blank">https://play.google.com/store/apps/details?id=xxx.wspr.g4swy</a><br>                     for pics and more information.</p><p><br></p><div class="" style="border:0px;margin:0px;padding:0px;border-radius:2px 2px 0px 0px;overflow:hidden;float:left;height:160px;width:160px"><div class="" style="border:0px;margin:0px;padding:0px;height:176px;width:176px"><div class="" style="border:0px;margin:0px;padding:0px;display:table;height:176px;width:176px"><div class="" style="border:0px;margin:0px;padding:0px;display:table-cell;text-align:center;vertical-align:middle"><img class="" alt="WSPR World Watch v2" src="https://lh3.ggpht.com/YqdikgiEoDuCHFn9DTMhaJVJ73lWN0e4cVzf_Ngj8d0Ozcu5YZPkeodZKYUBLn5hObzh=w170-rw" style="vertical-align: middle; border: 0px; margin: 0px; padding: 0px; max-height: 160px; max-width: 73%;"></div></div></div><a class="" href="https://play.google.com/store/apps/details?id=xxx.wspr.g4swy" tabindex="-1" style="text-decoration:none;color:rgb(51,51,51)"><span class="" style="border-radius:2px;height:160px;width:160px;background:rgba(0,0,0,0.4)"></span></a></div><div class="" style="border:0px;margin:0px 0px 0px 160px;padding:7px 10px 0px;overflow:hidden;max-height:144px;width:340px"><a class="" href="https://play.google.com/store/apps/details?id=xxx.wspr.g4swy" tabindex="-1" style="text-decoration:none;color:rgb(51,51,51)"></a><h2 style="border:0px;margin:0px;padding:0px;font-family:inherit;font-size:inherit;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;line-height:inherit"><a class="" href="https://play.google.com/store/apps/details?id=xxx.wspr.g4swy" title="WSPR World Watch v2" style="text-decoration:none;color:rgb(51,51,51);display:block;font-size:16px;line-height:18px;max-height:36px;min-height:18px;overflow:hidden;white-space:nowrap">WSPR World Watch v2<span class="" style="height:19px;max-height:100%;width:45px;background:linear-gradient(to right,rgba(255,255,255,0),rgb(255,255,255))"></span></a></h2><div class="" style="border:0px;margin:0px;padding:0px;width:320px;min-height:22px"><a class="" href="https://play.google.com/store/apps/developer?id=Derek+Turner" title="Derek Turner" style="text-decoration:none;color:rgb(170,170,170);display:inline-block;font-size:13px;line-height:16px;margin:1px 0px;max-width:132px;overflow:hidden;white-space:nowrap">Derek Turner</a></div><div class="" style="border:0px;margin:17px 0px 0px;padding:0px;color:rgb(141,141,141);font-size:13px;max-height:72px">This app answers the two basic questions facing radio amateurs:- <br>Which band shall I use ? <br>Where shall I point my beam ?<p style="border:0px;margin:0px;padding:0px">It will be of interest to anybody who wants to study radio propagation and the ionosphere.</p><p style="border:0px;margin:0px;padding:0px">This app plots real-time radio transmission paths on a world map which may be centered either on the Atlantic or the Pacific and incorporates a background display of the &#39;greyline&#39; or terminator.</p><p style="border:0px;margin:0px;padding:0px">Paths of single stations may also be viewed.</p><p style="border:0px;margin:0px;padding:0px">In addition there is an Aurora plot option and display of Space Weather indexes.</p><p style="border:0px;margin:0px;padding:0px">WSPR (Weak Signal Propagation Reporter pronounced &#39;whisper&#39;) is designed for probing radio propagation paths using low-power beacon-like transmissions. WSPR signals convey only a callsign, Maidenhead grid locator and power level. Receiving stations with internet access automatically upload reception reports to a central database.</p><p style="border:0px;margin:0px;padding:0px"></p><p style="border:0px;margin:0px;padding:0px"></p><p style="border:0px;margin:0px;padding:0px"></p><p style="border:0px;margin:0px;padding:0px"></p><span class="" style="height:15px;max-height:100%;width:60px;background:linear-gradient(to right,rgba(255,255,255,0),rgb(255,255,255))"></span><a class="" href="https://play.google.com/store/apps/details?id=xxx.wspr.g4swy" tabindex="-1" style="text-decoration:none;color:rgb(51,51,51)"></a></div></div><div class="" style="border:0px;margin:0px 0px 0px 160px;padding:0px 10px;border-radius:2px;width:340px;max-height:83px;background-image:initial;background-repeat:initial"><span class="" style="display:block;vertical-align:top;white-space:nowrap;width:320px"><a href="https://play.google.com/store/apps/details?id=xxx.wspr.g4swy" tabindex="-1" style="text-decoration:none;color:rgb(51,51,51)"><span style="font-family:Roboto,UILanguageFont,Arial,sans-serif;font-size:13px;line-height:18.2000007629395px"></span><div class="" style="border:0px;margin:5px 0px 0px;padding:0px;height:24px;font-family:Roboto,UILanguageFont,Arial,sans-serif;font-size:13px;line-height:18.2000007629395px"><div class="" style="border:0px;margin:0px;padding:0px;list-style:none;display:inline-block;height:14px;width:69px"></div></div></a></span></div><p><br></p></div>