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<p class="MsoNormal"><span lang="EN-US">UK 434 MHz balloons head for Poland<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Two balloons were launched from Cambridge on Saturday, April 13, one transmitting video images from a Rapsberry Pi. On Saturday evening the M0UPU-11 APRS signal indicated they were over Germany.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">The first balloon is flying a Raspberry Pi which transmitted live Slow Scan Digital Video (SSDV) images back to the ground by a pair of transmitters to double the bandwidth. The data was RTTY 300 baud 8N2.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">The frequencies used were 434.070 and 434.074 MHz. The balloon call sign was $$PIE.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">The second balloon flew a 70cms tracker on 434.450 MHz 50 baud 7N2. Additionally once it entered air space where the airborne use of APRS is permitted a second APRS transmitter was enabled, presumably on the APRS frequency
of 144.800 MHz, with the call sign M0UPU-11.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Live video of the launch was streamed by the British Amateur TV Club (BATC) at
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">http://www.batc.tv/<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Tracks of both balloons are at <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">http://www.spacenear.us/tracker<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Direct link to M0UPU-11 APRS track <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">http://aprs.fi/#!call=a%2FM0UPU-11&timerange=86400&tail=86400<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Images from the PIE5 Raspberry Pi balloon transmitted using SSDV can be seen at
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">http://ssdv.habhub.org/<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Beginners Guide to Tracking using dl-fldigi<o:p></o:p></span></p>
<p class="MsoNormal">http://ukhas.org.uk/guides:tracking_guide<o:p></o:p></p>
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