<div dir="ltr"><h1 style="color:rgb(0,0,0);text-transform:none;line-height:normal;text-indent:0px;letter-spacing:normal;font-family:Verdana,Arial,Helvetica,sans-serif;font-size:16pt;font-style:normal;font-variant:normal;word-spacing:0px;white-space:normal;background-color:rgb(255,255,255)">Partial solar eclipse propagation experiment, March 20th 2015</h1><p style="color:rgb(0,0,0);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;background-color:rgb(255,255,255)"><strong>Call for Opera users</strong></p><p style="color:rgb(0,0,0);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;background-color:rgb(255,255,255)">There is a unique opportunity to participate in gathering propagation data during a solar eclipse, occurring during the morning of Friday 20 March 0800z to 1200z.</p><p style="color:rgb(0,0,0);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;background-color:rgb(255,255,255)">The<span> </span><strong>Opera</strong><span> </span>system is well suited to the requirements and in liaison with the RSGB project coordinator,<span> </span><strong>Steve G0KYA</strong>, Opera mode has been added to the list of experiments.</p><p style="color:rgb(0,0,0);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;background-color:rgb(255,255,255)"><strong>User participation: A change from the normal</strong><span> </span><br><em>Its requested MF and 160 participating stations, elect to be either Tx or Rx only.</em><em></em></p><p style="color:rgb(0,0,0);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;background-color:rgb(255,255,255)">Due to the short length of the event, round 4 hours, to maximise the quantity and quality the of data produced from the 477KHz and 1.8 MHz bands,<span> </span><br>Tx Stations are requested to send at 100% no beacon timer and no CW i/d,<span> </span><br>Rx Stations are requested to maintain ‘Fixed band’ watch over the time window.</p><p style="color:rgb(0,0,0);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;background-color:rgb(255,255,255)">[Rx Stations , Copy and paste the local decode results to text file as back up to the PSK-Map data base]</p><p style="color:rgb(0,0,0);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;background-color:rgb(255,255,255)"><strong>Three sections of the spectrum are of particular interest</strong>:-</p><p style="color:rgb(0,0,0);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;background-color:rgb(255,255,255)">MF 477 KHz / OP8 Tx @ 100% No CW ID</p><p style="color:rgb(0,0,0);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;background-color:rgb(255,255,255)">HF 1.8MHz / OP4 , Tx @ 100% No CW ID</p><p style="color:rgb(0,0,0);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;background-color:rgb(255,255,255)">HF 3.5 MHz / OP2 , 7 MHz / OP2 Normal operations</p><p style="color:rgb(0,0,0);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;background-color:rgb(255,255,255)">One of the main areas of interest is the North / South path straggling the line of Totality, this being roughly central to a 1000 mile path from the UK/EU to Iceland.</p><p style="color:rgb(0,0,0);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;background-color:rgb(255,255,255)">MF: 477KHz ‘Totality Path’: Halldor TF3HZ has undertaken to establish a web-linked Rx monitor for 477KHz OP8 and will set up in the week previous to the event.</p><p style="color:rgb(0,0,0);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;background-color:rgb(255,255,255)">MF: 477KHz Inter ‘UK / EU’: Stations are also invited to join the experiment , noting , Tx / Rx stations are requested to follow the 100% Tx and Rx continuous availability.</p><p style="color:rgb(0,0,0);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;background-color:rgb(255,255,255)"><strong>HF Bands</strong></p><p style="color:rgb(0,0,0);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;background-color:rgb(255,255,255)">Opera is one of many systems to be deployed during the event on HF .</p><p style="color:rgb(0,0,0);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;background-color:rgb(255,255,255)">1.8 OP4 Operations requested to follow the MF 477 KHz format<span> </span><br>3.5 and 7 MHz bands , deploying OP2 mode , normal operations</p><p style="color:rgb(0,0,0);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;background-color:rgb(255,255,255)">Links :-<br>Steve RSGB coordinator :<span> </span><a style="color:rgb(0,51,102);text-decoration:none" href="http://www.g0kya.blogspot.co.uk/" target="_blank">http://www.g0kya.blogspot.co.uk/</a><br>Download :<span> </span><a style="color:rgb(0,51,102);text-decoration:none" href="https://rosmodem.wordpress.com/" target="_blank">https://rosmodem.wordpress.com/</a><br>Yahoo group:<span> </span><a style="color:rgb(0,51,102);text-decoration:none" href="https://groups.yahoo.com/neo/groups/O_P_E_R_A_/info" target="_blank">https://groups.yahoo.com/neo/groups/O_P_E_R_A_/info</a><br>Facebook :<span> </span><a style="color:rgb(0,51,102);text-decoration:none" href="https://www.facebook.com/groups/operadatamode/" target="_blank">https://www.facebook.com/groups/operadatamode/</a></p></div>