tag:blogger.com,1999:blog-80742392804368021332024-03-13T15:17:53.022-07:00JT1EPY Mongolia Expedition 2008Dominique, F6EPYhttp://www.blogger.com/profile/03123424661249788466noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-8074239280436802133.post-60764697025777947422008-07-21T11:55:00.000-07:002008-07-23T12:32:42.091-07:00Operating ScheduleOperation should last from july, 27th until august, 2nd.<br /><br />I should be QRV each of these evenings from 15h00 UTC to about 18h00 UTC starting on 20 m and then switching to 30 m according to propagation.<br /><br />The approximate locations and callsigns should be:<br /><br />27/7 JT1EPY/6 Uvurkhangai <br />28/7 JT1EPY/8 Bayankhongor <br />29/7 JT1EPY/8 Gobi Altai<br />30/7 to 2/8 JT1EPY/0 Eclipse camp in Altai Soum<br /><br />(Thanks to Khos JT1CD, secretary of the MARS, for the early communication of the callsign and for the map)<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://1.bp.blogspot.com/_-BxFfOBWyeE/SIeFtvKZVRI/AAAAAAAAAAs/9oeq6dvEQq4/s1600-h/JTMAP.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="http://1.bp.blogspot.com/_-BxFfOBWyeE/SIeFtvKZVRI/AAAAAAAAAAs/9oeq6dvEQq4/s400/JTMAP.jpg" alt="" id="BLOGGER_PHOTO_ID_5226292913387427090" border="0" /></a><br /><br />I am intending to operate in <span style="font-weight: bold;">WSPR QSO mode</span> on the WSJT HF DX window for Europe, thus a VFO USB dialing frequency of:<br /><br />20 m <span style="font-weight: bold;">14076.0</span><br />30 m <span style="font-weight: bold;">10139.0</span> eventually going down to <span style="font-weight: bold;">10138.7</span> if PSK31 QRM was too strong.<br /><br />VOACAP issues the following prediction to Paris (France): the SNR (in 1 Hz bw) for my working conditions (2.5W in isotrope antenna) for a reliability of 50% . Above 15 dB (in 1 Hz bw) should be enough for a WSPR SNR of -20 (in 2500 Hz bw).<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://4.bp.blogspot.com/_-BxFfOBWyeE/SIToIZc82EI/AAAAAAAAAAk/JzqI3drPZZA/s1600-h/Altay_Paris.png"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="http://4.bp.blogspot.com/_-BxFfOBWyeE/SIToIZc82EI/AAAAAAAAAAk/JzqI3drPZZA/s400/Altay_Paris.png" alt="" id="BLOGGER_PHOTO_ID_5225556698625529922" border="0" /></a><br />There is a tiny opportunity of US NE coast opening around 15h00 UTC on 20 m and overall propagation should be the best to LA/SM/OH with an emphasis on 30m.<br /><br />I may eventually operate CW, watch DX Cluster.<br /><br />73's de Dominique, F6EPYDominique, F6EPYhttp://www.blogger.com/profile/03123424661249788466noreply@blogger.com0tag:blogger.com,1999:blog-8074239280436802133.post-8118928027557834862008-07-19T04:12:00.000-07:002008-07-19T05:30:52.946-07:00Mongolia Expedition 2008I will be joining a group of amateur astronomers from my astronomy club in Orsay (France), the <a href="http://aav.free.fr/">Association Astronomique de la Vallée (AAV), </a>to watch the total <a href="http://eclipse.gsfc.nasa.gov/SEmono/TSE2008/TSE2008.html">solar eclipse of August 1st, 2008</a> from the mountains of Altaï in western Mongolia.<br /><br /><br />We will be driving from Ulaan Baatar to the eclipse site near Altaï Soum (Hovd Province) between July 26th and July 31st , using former USSR 4WD's of type <a href="http://en.wikipedia.org/wiki/UAZ">UAZ 452</a>.<br /><br />During this trip and on the eclipse camp site, I am intending to maintain radio contacts with ham radio friends in France and world-wide using a low power simplistic station consisting of a Yeasu FT-817ND running 1 watt on batteries and a <a href="http://www.buddipole.com/buddistick.html">buddistick</a> antenna.<br /><br />A JT callsign has been applied for at the <a href="http://www.qsl.net/jt1kaa/">Mongolia Amateur Radio Society</a> (MARS) and will be known on 26/7 once in Ulaan Baatar.<br /><br />The communication mode of choice will be the new WSPR QSO mode from the very recent <a href="http://physics.princeton.edu/pulsar/K1JT/">beta WSJT7 package</a> by Joe Taylor K1JT . The link budget margin in this mode can solely provide reliable path conditions in such QRP conditions.<br /><br />The trip should be as below.<br /><br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://3.bp.blogspot.com/_-BxFfOBWyeE/SIHa09h0NcI/AAAAAAAAAAM/W7xaSESuVjc/s1600-h/Expe_Track.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer; width: 476px; height: 251px;" src="http://3.bp.blogspot.com/_-BxFfOBWyeE/SIHa09h0NcI/AAAAAAAAAAM/W7xaSESuVjc/s320/Expe_Track.jpg" alt="" id="BLOGGER_PHOTO_ID_5224697646130935234" border="0" /></a><br />More on ham radio operation (frequencies, shedules) in next post.<br /><br />73's de Dominique, F6EPYDominique, F6EPYhttp://www.blogger.com/profile/03123424661249788466noreply@blogger.com1