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<p class="MsoNormal">Hi HamSCI,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">This week is our bi-weekly HamSCI telecon on Thursday, January 21st at 2000z / 3 PM Eastern.<o:p></o:p></p>
<p class="MsoNormal">Here is the link: <a href="https://scranton.zoom.us/j/286316405?pwd=QWdwMlFPbDlYeXg5ZDg1dmYzeFdCUT09">https://scranton.zoom.us/j/286316405?pwd=QWdwMlFPbDlYeXg5ZDg1dmYzeFdCUT09</a><o:p></o:p></p>
<p class="MsoNormal">If you are asked for a password, it is “hamsci”.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Our post-doc, Dr. Dev Joshi KC3PVE, will give us an update on his recent work at looking at the ROTHR Chirp Ionosonde in Chesapeake, VA with a receiver in Spring Brook, PA. Full abstract below.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Also, we are now accepting abstracts for the 2021 HamSCI workshop! Please submit at
<a href="http://hamsci.org/hamsci2021">http://hamsci.org/hamsci2021</a><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="border:none;padding:0in">73 de Nathaniel W2NAF<o:p></o:p></p>
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<p class="MsoBodyText"><b><span style="font-family:"Times New Roman",serif;color:black">Developing an Ionospheric Sounding Mode Using Chirp Ionosondes of Opportunity for the HamSCI Personal Space Weather Station : Status and Early Results</span></b><o:p></o:p></p>
<p class="MsoBodyText"><span style="font-family:"Times New Roman",serif;color:black">- Dev Joshi<sup>1</sup>, Nathaniel Frissell<sup>1</sup>, William Liles<sup>2</sup>, Juha Vierinen<sup>3</sup>, Ethan Miller
<sup>2,4</sup></span><o:p></o:p></p>
<p class="MsoBodyText"><sup><span style="font-family:"Times New Roman",serif;color:black">1</span></sup><span style="font-family:"Times New Roman",serif;color:black">The University of Scranton, Pennsylvania, USA,
<sup>2</sup>HamSCI Community, Scranton, PA, USA,<sup>3</sup>University of Tromsų, Tromsų, Norway,
<sup>4</sup>Systems & Technology Research, Ohio, USA</span><o:p></o:p></p>
<p class="MsoBodyText" style="text-align:justify"><span style="font-family:"Times New Roman",serif;color:black">The objective of the Ham Radio Science Citizen Investigation (HamSCI) Personal Space Weather Station (PSWS) project is to develop a distributed array
of ground-based multi-instrument nodes capable of remote sensing the geospace system. This system is being designed with the intention of distribution to a large number of amateur radio and citizen science observers. This will create an unprecedented opportunity
to probe the ionosphere at finer resolution in both time and space as all measurements will be collected into a central database for coordinated analysis.</span><o:p></o:p></p>
<p class="MsoBodyText" style="text-align:justify"><span style="font-family:"Times New Roman",serif;color:black">Individual nodes are being designed to service the needs of the professional space science researcher while being cost-accessible and of interest
to amateur radio operators and citizen scientists. At the heart of the HamSCI PSWS will be a high performance 1 – 50 MHz software defined radio (SDR) with GNSS-based precision timestamping and frequency reference. This SDR is known as the TangerineSDR and
is being developed by the Tucson Amateur Packet Radio (TAPR) amateur radio organization. The primary objective of PSWS system is to gather observations to understand the short term and small spatial scale ionospheric variabilities in the ionosphere-thermosphere
system. These variabilities are important for understanding a variety of geophysical phenomena such as Traveling Ionospheric Disturbances (TIDs), Ionospheric absorption events, geomagnetic storms and substorms. We present early results of an ionospheric sounding
mode that we intend to implement on the PSWS system, currently implemented on an Ettus N200 Universal Software Radio Peripheral (USRP) using the open source GNU Chirpsounder data collection and analysis code.</span><o:p></o:p></p>
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<p class="MsoNormal">-----------------------------------------------<o:p></o:p></p>
<p class="MsoNormal">Dr. Nathaniel A. Frissell, Ph.D., W2NAF<o:p></o:p></p>
<p class="MsoNormal">HamSCI Lead<br>
Assistant Professor<br>
Department of Physics and Electrical Engineering<br>
University of Scranton<br>
(973) 787-4506<o:p></o:p></p>
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