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D.  Clancy, Kim, H., Frissell, N., Frissell, R., and Witten, D., ?Assessment of a Low-Cost Magneto-Inductive Magnetometer for Personal Space Weather Stations?, HamSCI Workshop 2026. HamSCI, Newington, CT, 2026.\par \par S.  Fernandes, Perry, G. W., Trigo, T., Frissell, N. A., Gibbons, J., and Collins, K., ?Characterizing ionospheric variability through HF Doppler measurements: a statistical and numerical ray tracing analysis?, Frontiers in Astronomy and Space Sciences, vol. 13, 2026.\par \par M.  Hartinger, Millan, R., Frissell, N., Collins, K., and McGaw, D. G., ?CINEMA/MOVIE - A NASA research mission to study the Earth's magnetic tail, and its conjugate Citizen Science?, HamSCI Workshop 2026. HamSCI, Newington, CT, 2026.\par \par K.  Cariglia, ?Connecting Amateur Radio and Atmospheric Science: The CEDAR Madrigal Database?, HamSCI. HamSCI, Newington, CT, 2026.\par \par M.  Usis, Goodman, A., Schwartz, L., Kazdan, D., Collins, K., Gibbons, J., Sastry, S., Ayres, L., Brault, C., Byas, S., Dimple, M., Dowell, M., Eggert, R., Erdag, A., Ervin, J., Goodwin, D., Nelson, S., Nichols, S., Tulgetske, O., and Zorman, C., ?Detecting changes in along-path HF propagation during the April 2024 total solar eclipse with radio amateurs and low-cost instrumentation?, Frontiers in Astronomy and Space Sciences, 2026.\par \par H.  Kim, Frissell, N., Frissell, R., Witten, D., and Clancy, D., ?Development of a low-cost magnetometer system for a coordinated space weather monitoring?, HamSCI Workshop 2026. HamSCI, Newington, CT, 2026.\par \par S. A.  Cerwin, McMahan, J. T., Papadopoulos, A. S., Piccini, G. N., Frissell, N. A., Collins, K. V., Montare, A., Bilberry, P., Blackshear, S., and Themens, D. R., ?HamSCI HF multipath propagation mode analysis using amateur radios and audio waveforms sensitive to time difference of arrival?, Frontiers in Astronomy and Space Sciences, vol. 13, 2026.\par \par D.  Sanchez, West, M. Lou, Frissell, N., Perry, G., V. Harve, L., Engelke, B., Callahan, N., Erickso, P., Becker, E., and Vadas, S., ?Multi-Year Climatology of Large-Scale Traveling Ionospheric Disturbances Observed with High Frequency Amateur Radio Receiving Networks Using a Novel Automated Detection Algorithm?, HamSCI Workshop 2026. HamSCI, Newington, CT, 2026.\par \par S.  Chakraborty, Bullett, T., Barjatya, A., and Mabie, J., ?pynasonde:An open-source Python library for ionosonde data processing?, SoftwareX, vol. 34, p. 102617, 2026.\par \par A.  Chaabane, ?Real-Life RX antenna directional performance validation?, HamSCI Workshop 2026. HamSCI, Newington, CT, 2026.\par \par J.  Conti, Frissell, N., Witten, D., Spalletta, R., and Kim, H., ?A Real-Time Web Dashboard for Measuring Earth?s Magnetic Field?, HamSCI Workshop 2026. HamSCI, Newington, CT, 2026.\par \par K.  Collins, ?Roadmap for the HamSCI Personal Space Weather Station Network (2026)?, HamSCI. HamSCI, ?Newington, CT, 2026.\par \par K.  Pandey, Perry, G., Frissell, N., Atkinson, T., Engelke, W., Huba, J., West, M. Lou, Gladstone, P., Cushing, C., Denton, M. K., Griffiths, G., Efchak, E., Mikitin, G., and H Silver, W., ?Solar Eclipse Through Ham Radio: What the Bands Revealed?, HamSCI Workshop. HamSCI, Newington, CT, 2026.\par \par D.  Reavy, Hoey, B., Coffey, J., Martinez, K., Shahrouzi, N., Frissell, N., and Beattie, Jr, G., ?Starting a Low?Cost SDR Beacon Receiver Project for Studying Extended Tropospheric Propagation on 432/902/1296 MHz?, HamSCI Workshop 2026. HamSCI, Newington, CT, 2026.\par \par M. Lou West, Frissell, N., Mikitin, G., Popelas, G., Wilcox, R., Denton, M. K., Spalletta, R., Engelke, W., Griffiths, G., and Cerwin, S., ?Analysis by Citizen Scientists of Doppler Radio Observations of the April, 2024 Solar Eclipse?, HamSCI Workshop 2025. HamSCI, Newark, NJ, 2025.\par \par A.  Papadopoulos, Piccini, G., Frissell, N., Cerwin, S., McMahan, J., Bilberry, P., Samuel, B., Montaigne, A., Collins, K., and Spalletta, R., ?Analysis of the HamSCI Solar Eclipse High Frequency Time Difference of Arrival Experiment Observations Using Automated Techniques?, HamSCI Workshop 2025. HamSCI, Newark, NJ, 2025.\par \par K. U. N.  Baylor, Zhan, P., and Chen, B., ?Are Weak Type II Radio Bursts Associated with Shocks Driven by Coronal Mass Ejections??, HamSCI Workshop 2025. HamSCI, Newark, NJ, 2025.\par \par D.  Sanchez, Frissell, N., West, M. Lou, V. Harvey, L., Vadas, S., Becker, E., Perry, G., Engelke, W., Callahan, N., and Erickson, P., ?Climatology of Large-Scale Traveling Ionospheric Disturbances Observed with 14 MHz Amateur Radio Using a Novel Automated Detection Technique?, HamSCI Workshop 2025. HamSCI, Newark, NJ, 2025.\par \par K.  Collins, Hartinger, M., Zimmerman, K., Salzano, M., and Burrell, A., ?conjugate_map: A Python package for calculating geomagnetic conjugate points?, SoftwareX, vol. 32, p. 102354, 2025.\par \par J.  Gjerloev, Barnes, R., Adebayo, E., Kepko, L., Cline, T., Mosavi-Hoyer, N., Leibert, J., Regoli, L., Freil, M., Oztruk, D., Cohen, A., and Fitzer, J., ?EZIE-Mag:  A low cost, science quality, magnetometer suite enabling global coverage?, HamSCI Workshop 2025. HamSCI, Newark, NJ, 2025.\par \par D.  Kazdan, Collins, K., and Davydov, L., ?The HamSCI Book Club?, HamSCI Workshop 2025. HamSCI, Newark, NJ, 2025.\par \par K.  Collins, ?HamSCI in OpenSpace: Toward Unified Visualizations of Geospace Data?, HamSCI Workshop 2025. HamSCI, Newark, NJ, 2025.\par \par K.  Pandey, Perry, G., Frissell, N., Atkinson, T., Engelke, W., Huba, J., West, M. Lou, Gladstone, P., Cushing, C., Denton, M. K., Efchak, E., Mikitin, G., and H. Silver, W., ?HamSCI Solar Eclipse QSO Party (SEQP): Observations and Modeling on  Ionospheric Effects?, HamSCI Workshop 2025. HamSCI, Newark, NJ, 2025.\par \par S.  Cerwin, ?Radio Wave Propagation and Antenna Fundamentals?, HamSCI Workshop 2025. HamSCI, Newark, NJ, 2025.\par \par R.  Boedicker, Frissell, N., Gibbons, J., Collins, K., and Kazdan, D., ?The Solar Eclipse Inverse Problem?, HamSCI Workshop 2025. HamSCI, Newark, NJ, 2025.\par \par K.  Campbell and Roberts, J., ?Why you should attend the Youth on the Air camp?, HamSCI Workshop 2025. HamSCI, Newark, NJ, 2025.\par \par A.  Papadopoulos, Piccini, G., Pisano, T., Guerra, N., Felicia, M., Hromisin, E., Montare, A., Collins, K., Bilberry, P., Blackshear, S., Cerwin, S., and Frissell, N. A., ?Analysis of the HamSCI Solar Eclipse High Frequency Time Difference of Arrival Experiment Observations Using Automated Techniques?, HamSCI Workshop 2024. HamSCI, Cleveland, OH, 2024.\par \par J.  Visone, Kim, H., Witten, D., Madey, J., Frissell, N. A., Gibbons, J., Engelke, W. D., Liddle, A., Muscolino, N., and Cao, Z., ?Citizen Science: Development of a Low-Cost Magnetometer System  for a Coordinated Space Weather Monitoring?, HamSCI Workshop 2024. HamSCI, Cleveland, OH, 2024.\par \par H.  Kim, Witten, D., Madey, J., Frissell, N., Gibbons, J., Engelke, W., Liddle, A., Muscolino, N., Visone, J., and Cao, Z., ?Citizen science: Development of a low-cost magnetometer system for a coordinated space weather monitoring?, HardwareX, vol. 20, p. e00580, 2024.\par \par V. I.  Romanek, Frissell, N. A., Kunduri, B., J. Ruohoniemi, M., Baker, J., Liles, W., Gibbons, J., Collins, K., Kazdan, D., and Boedicker, R., ?Comparative Analysis of Medium Scale Travelling Ionospheric Disturbances: Grape PSWS vs. SuperDARN?, HamSCI Workshop 2024. HamSCI, Cleveland, OH, 2024.\par \par A.  Brapoh, Dittmar, M., Szabo, A., Troy, R., Frissell, N., and Cerwin, S. A., ?Construction of a Table-Top Antenna Range for Learning Electromagnetics Concepts?, HamSCI Workshop 2024. HamSCI, Cleveland, OH, 2024.\par \par S. A.  Cerwin, Bilberry, P., Blackshear, S., McMahan, J. T., Collins, K. V., and Frissell, N. A., ?Estimation of Ionospheric Layer Height by Measuring the Time Difference of Arrival (TDOA) Between 1 and 2 Hop Propagation Modes. 2023 Annular Eclipse Observations?, HamSCI Workshop 2024. HamSCI, Cleveland, OH, 2024.\par \par R.  Boedicker, Frissell, N. A., Gibbons, J., and Collins, K., ?Initial Review of the October 2023 Grape Eclipse Data?, HamSCI Workshop 2024. HamSCI, Cleveland, OH, 2024.\par \par S.  Chakraborty, Collins, K. V., Frissell, N. A., J. Ruohoniemi, M., and Baker, J. B. H., ?Reexamining the Characteristics of Flare-Driven Doppler Flash using multipoint HF Observations?, HamSCI Workshop 2024. HamSCI, Cleveland, OH, 2024.\par \par K.  Hozumi, Frissell, N. A., Chou, M. - Y., Griffiths, G., Engelke, W. D., Yue, J., Fung, S., and Kuznetsova, M., ?Trial of applying PHaRLAP raytracing to reproduce Ham spot data?, HamSCI Workshop 2024. HamSCI, Cleveland, OH, 2024.\par \par A.  Schmidt, Meriwether, J. W., Cooper, M. B., Gerrard, A. J., Goodwin, L. V., Zhang, S. - R., Jeffer, G., and Callie, C., ?Wave Activity in Thermospheric Vertical Winds and Temperatures at Subauroral Latitudes?, HamSCI Workshop 2024. HamSCI, Cleveland, OH, 2024.\par \par C. D.  Chakiris, Brudnicki, R. C., Troy, R. D., Nelson, J. A., Dittmar, M. K., Brapoh, Jr., A. D., Andrade, M., Lugo, S., Szabo, A. T., and Dudeck, K., ?AC Motor Drive With Power Factor Correction Using Arduino?, HamSCI Workshop 2023. HamSCI, Scranton, PA, 2023.\par \par V.  Romanek, Frissell, N., Collins, K., Gibbons, J., Kazdan, D., and Liles, W., ?Climatology of Ionospheric Variability with MSTID Periods Observed Using Grape v1 HF Doppler Receivers?, HamSCI Workshop 2023. HamSCI, Scranton, PA, 2023.\par \par K.  Collins, Gibbons, J., Frissell, N., Montare, A., Kazdan, D., Kalmbach, D., Swartz, D., Benedict, R., Romanek, V., Boedicker, R., Liles, W., Engelke, W., McGaw, D. G., Farmer, J., Mikitin, G., Hobart, J., Kavanagh, G., and Chakraborty, S., ?Crowdsourced Doppler measurements of time standard stations demonstrating ionospheric variability?, Earth System Science Data, vol. 15, no. 3, pp. 1403 - 1418, 2023.\par \par H.  Kim, Frissell, N. A., Witten, D., Madey, J., Engelke, W. D., Holmes, T., Mokhtari, M., Cowling, S., Liddle, A., Muscolino, N., and Cao, Z., ?Development of HamSCI PSWS Ground Magnetometer and Data Visualization on the PSWS Central Website?, HamSCI Workshop 2023. HamSCI, Scranton, PA, 2023.\par \par N. A.  Frissell, Ackermann, J. R., Alexander, J. N., Benedict, R. L., Blackwell, W. C., Boedicker, R. K., Cerwin, S. A., Collins, K. V., Cowling, S. H., Deacon, C., Diehl, D. M., Di Mare, F., Duffy, T. J., Edson, L. Brandt, Engelke, W. D., Farmer, J. O., Frissell, R. M., Gerzoff, R. B., Gibbons, J., Griffiths, G., Holm, S., Howell, F. M., Kaeppler, S. R., Kavanagh, G., Kazdan, D., Kim, H., Larsen, D. R., Ledvina, V. E., Liles, W., Lo, S., Lombardi, M. A., MacDonald, E. A., Madey, J., McDermott, T. C., McGaw, D. G., McGwier, R. W., Mikitin, G. A., Miller, E. S., Mitchell, C., Montare, A., Nguyen, C. D., Nordberg, P. N., Perry, G. W., Piccini, G. N., Pozerski, S. W., Reif, R. H., Rizzo, J. D., Robinett, R. S., Romanek, V. I., Sami, S., Sanchez, D. F., Sarwar, M. Shaaf, Schwartz, J. A., H. Serra, L., H. Silver, W., Skov, T. Mulligan, Swartz, D. A., Themens, D. R., Tholley, F. H., West, M. Lou, Wilcox, R. C., Witten, D., Witvliet, B. A., and Yadav, N., ?Heliophysics and amateur radio: citizen science collaborations for atmospheric, ionospheric, and space physics research and operations?, Frontiers in Astronomy and Space Sciences, vol. 10, 2023.\par \par R.  Boedicker, Frissell, N., Collins, K., Gibbons, J., Kazdan, D., and Erickson, P. J., ?Measuring Daily Ionospheric Variability and the 2023 and 2024 Solar Eclipse Ionospheric Impacts Using HamSCI HF Doppler Shift Receivers?, HamSCI Workshop 2023. HamSCI, Scranton, PA, 2023.\par \par N. A.  Frissell, Tholley, F., V. Harvey, L., Phillips, S. R., Bossert, K., Derghazarian, S., Goncharenko, L., Collins, R., West, M. Lou, Sanchez, D. F., Perry, G. W., Gerzoff, R. B., Erickson, P. J., Engelke, W. D., Callahan, N., Underbakke, L., Atkison, T., J. Ruohoniemi, M., and Baker, J. B. H., ?Medium Scale Traveling Ionospheric Disturbances and their Connection to the Lower and Middle Atmosphere?, HamSCI Workshop 2023. HamSCI, Scranton, PA, 2023.\par \par T.  Pisano, Frissell, N., DePolo, J., and Club, T. W. 3U. S. R. Univ, ?A New Station for the W3USR University of Scranton Amateur Radio Club?, HamSCI Workshop 2023. HamSCI, Scranton, PA, 2023.\par \par T.  Young, Ledvina, V., MacDonald, E., Brandt, L., Barkhouse, W., Schultz, A., Payne, C., Mitchell, A., Haugen, K., Shearer, W., Hartman, K., Sillitti, S., McCormack, M., and Collins, S., ?The North Dakota Dual Aurora Camera Version 2.0 (NoDDAC2.0), a Platform for Citizen Science and a Use Case for Implementing Best Practices in Open Data and Collaboration?, HamSCI Workshop 2023. HamSCI, Scranton, PA, 2023.\par \par S.  Cerwin and Bilberry, P., ?On-Air Multipath TDOA Experiments for Ionospheric Layer Height Measurements Using Amateur Radio Stations?, HamSCI Workshop 2023. HamSCI, Scranton, PA, 2023.\par \par S.  Chakraborty and Collins, K., ?The potential of HamSCI Doppler Observations for inferring Solar Flare Effects on the Ionosphere?, HamSCI Workshop 2023. HamSCI, Scranton, PA, 2023.\par \par C.  Chakirus, Brudnicki, R., Troy, R., and Dudeck, K., ?Power Factor Detection and Correction of a Variable Speed AC motor?, HamSCI Workshop 2023. HamSCI, Scranton, PA, 2023.\par \par W.  Taylor, Krantz, A., Kinsky, J., Behrenhauser, N., Colgate, A., and Martinez-Manahan, M., ?Project HALO: An Effort to Provide Continuous Meteorological Observations of the April 8th, 2024 Total Solar Eclipse?, HamSCI Workshop 2023. HamSCI, Scranton, PA, 2023.\par \par D.  Diehl, Piccini, G., Calderon, A., Vega, J., Liles, W., and Frissell, N. A., ?PyLap: An Open Source Python Interface to the PHaRLAP Ionospheric Raytracing Toolkit?, HamSCI Workshop 2023. HamSCI, Scranton, PA, 2023.\par \par T.  McDermott, Cowling, S., and Ackermann, J., ?Tangerine SDR Integration Update?, HamSCI Workshop 2023. HamSCI, Scranton, PA, 2023.\par \par K.  Collins, Boedicker, R., and Kazdan, D., ?Through a Channel Dispersively with FB Copy: An Experience of fldigi Operating Modes?, HamSCI Workshop 2023. HamSCI, Scranton, PA, 2023.\par \par S. A.  Cerwin, ?Time Difference of Arrival (TDOA) Measurements on Multipath Propagation Modes to Profile Ionospheric Layer Height Changes During Solar Eclipses?, HamSCI Workshop 2023. HamSCI, Scranton, PA, 2023.\par \par D.  Swartz and Collins, K., ?An Update on the WWV/H Modulation Test and WWV ARC?, HamSCI Workshop 2023. HamSCI, Scranton, PA, 2023.\par \par A. T.  Chartier, Steele, J., Sugar, G., Themens, D. R., Vines, S. K., and Huba, J. D., ?Validating Ionospheric Models Against Technologically Relevant MetricsAbstractPlain Language SummaryKey Points?, Space Weather, vol. 21, no. 12, 2023.\par \par S.  Chakraborty, J. Ruohoniemi, M., and Baker, J. B. H., ?Viability of Nowcasting Solar Flare-Driven Radio-Blackouts Using SuperDARN HF Radars?, HamSCI Workshop 2023. HamSCI, Scranton, PA, 2023.\par \par N. A.  Frissell, Brandt, L., Cerwin, S. A., Collins, K. V., Kazdan, D., Gibbons, J., Engelke, W. D., Frissell, R. M., Gerzoff, R. B., Kaeppler, S. R., Ledvina, V., Liles, W., Lombardi, M., MacDonald, E., Di Mare, F., Miller, E. S., Perry, G. W., Rizzo, J. D., Sanchez, D. F., H. Serra, L., H. Silver, W., Themens, D. R., and West, M. Lou, ?Amateur Radio: An Integral Tool for Atmospheric, Ionospheric, and Space Physics Research and Operations?, White Paper Submitted to the National Academy of Sciences Decadal Survey for Solar and Space Physics (Heliophysics) 2024-2033, 2022.\par \par D. S.  Sanchez, Frissell, N. A., Perry, G. W., V. Harvey, L., Engelke, W. D., Coster, A., Erickson, P. J., J. Ruohoniemi, M., and Baker, J. B. H., ?Climatology of Large Scale Traveling Ionospheric Disturbances Observed by HamSCI Amateur Radio with Connections to Geospace and Neutral Atmospheric Sources?, HamSCI Workshop 2022. HamSCI, Huntsville, AL, 2022.\par \par N. A.  Frissell, Brandt, L., Cerwin, S. A., Collins, K. V., Duffy, T. J., Kazdan, D., Gibbons, J., Engelke, W. D., Frissell, R. M., Gerzoff, R. B., Kaeppler, S. R., Ledvina, V., Liles, W., MacDonald, E., Perry, G. W., Rizzo, J. D., Sanchez, D. F., H. Serra, L., H. Silver, W., Skov, T. Mulligan, and West, M. Lou, ?Fostering Collaborations with the Amateur Radio Community?, White Paper Submitted to the National Academy of Sciences Decadal Survey for Solar and Space Physics (Heliophysics) 2024-2033, 2022.\par \par M.  Cooper and Gerrard, A., ?Geomagnetic Indices and The Ring Current?, HamSCI Workshop 2022. HamSCI, Huntsville, AL, 2022.\par \par V.  Romanek, Frissell, N. A., Liles, W., Gibbons, J., and Collins, K. V., ?HF Doppler Observations of Traveling Ionospheric Disturbances in a WWV Signal Received with a Network of Low Cost HamSCI Personal Space Weather Stations?, HamSCI Workshop 2022. HamSCI, Huntsville, AL, 2022.\par \par H.  Kim, Ansari, S., Madey, J., Witten, D., Larsen, D., Cowling, S., Frissell, N., and Weygand, J., ?Magnetosphere-Ionosphere Coupling Studies Using the PSWS Magnetometer Network?, HamSCI Workshop 2022. HamSCI, Huntsville, AL, 2022.\par \par V.  Ledvina, MacDonald, E., Brandt, L., McCormack, M., Collins, S., Barkhouse, W., and Young, T., ?The North Dakota Dual Aurora Camera (NoDDAC), A Student-led Citizen Science Project: Data Showcase, Future Developments, and Scientific Potential?, HamSCI Workshop 2022. HamSCI, Huntsville, AL, 2022.\par \par M.  Cervera, ?PHaRLAP: Provision of High-frequency Ray tracing LAboratory for Propagation studies?, HamSCI Workshop 2022. HamSCI, Huntsville, AL, 2022.\par \par A.  Calderon, Liles, W., Frissell, N., and Vega, J., ?Ray Tracing in Python Utilizing the PHaRLAP Engine?, HamSCI Workshop 2022. HamSCI, Huntsville, AL, 2022.\par \par N.  Petit and Chi, P., ?SMART -- Expanding Array of Low Cost Magnetometers?, HamSCI Workshop 2022. HamSCI, Huntsville, AL, 2022.\par \par S. H.  Cowling, ?TangerineSDR Architecture and Hardware Update?, HamSCI Workshop 2022. HamSCI, Huntsville, AL, 2022.\par \par D.  Kazdan, Gibbons, J., Collins, K., Bauer, M., Bender, E., Marks, R., O'Brien, M., O'Brien, O., Foss, G., Pugliese, M., Ramos, A., and Whitaker, C., ?Three Time-of-Flight Measurement Projects on a Common Hardware Platform?, HamSCI Workshop 2022. HamSCI, Huntsville, AL, 2022.\par \par S.  Chakraborty, J. Ruohoniemi, M., and Baker, J. B. H., ?Viability of Nowcasting Solar Flare-Driven Radio-Blackouts Using SuperDARN HF Radars?, HamSCI Workshop 2022. HamSCI, Huntsville, AL, 2022.\par \par K. V.  Collins, ?WWV/H Scientific Modulation Working Group: Designing for Citizen Science?, HamSCI Workshop 2022. HamSCI, Huntsville, AL, 2022.\par \par N. A.  Frissell, Sanchez, D. F., Perry, G. W., Kaeppler, S. R., Joshi, D. Raj, Engelke, W., Thomas, E. G., Coster, A. J., Erickson, P. J., J. Ruohoniemi, M., and Baker, J. B. H., ?Amateur Radio Communications as a Novel Sensor of Large Scale Traveling Ionospheric Disturbances (Invited)?, in American Geophysical Union Fall Meeting, New Orleans, LA, 2021.\par \par D. F.  Sanchez, Frissell, N. A., Perry, G. W., Engelke, W. D., Coster, A. J., Erickson, P. J., J. Ruohoniemi, M., Baker, J. B. H., Harvey, L., and R. Luetzelschwab, C., ?Climatology of Traveling Ionospheric Disturbances Observed by HamSCI Amateur Radio with Connections to Geospace and Neutral Atmospheric Sources?, ARRL-TAPR Digital Communications Conference. ARRL-TAPR, Virtual, 2021.\par \par D. F.  Sanchez, Frissell, N. A., Perry, G., Harvey, L., Engelke, W. D., Coster, A. J., Erickson, P. J., J. Ruohoniemi, M., and Baker, J. B. H., ?Climatology of Traveling Ionospheric Disturbances Observed by HamSCI Amateur Radio with Connections to Geospace and Neutral Atmospheric Sources?, in American Geophysical Union Fall Meeting, New Orleans, LA, 2021.\par \par J. R.  Hobart, Farmer, J. O., Mikitin, G., Waugh, D., Benedict, R., Cerwin, S. A., Collins, K. V., Kazdan, D., Gibbons, J., Romanek, V. I., and Frissell, N. A., ?Construction and Operation of a HamSCI Grape Version 1 Personal Space Weather Station: A Citizen Scientist?s Perspective?, in American Geophysical Union Fall Meeting, New Orleans, LA, 2021.\par \par D.  Kazdan and Collins, K. V., ?Data Collection from WWV, WWVH, and WWVB: A Histoanatomy of NIST's Radio Beacon Transmissions?, HamSCI Workshop 2021. 2021.\par \par K.  Collins, Casente, D., Elia, J., Mereckis, M., and Meshnick, D., ?December 2020 Eclipse Festival Analysis?, HamSCI Workshop 2021. HamSCI, Scranton, PA (Virtual), 2021.\par \par S.  Cerwin, Collins, K. V., Joshi, D., and Frissell, N. A., ?Estimation of Ionospheric Layer Height Changes From Doppler Frequency and Time of Flight Measurements on HF Skywave Signals?, HamSCI Workshop 2021. HamSCI, Scranton, PA (Virtual), 2021.\par \par S. A.  Cerwin, Collins, K. V., Joshi, D. Raj, and Frissell, N. A., ?Experimental and Computational Methods to Analyze Complex Doppler Behavior of Ionospherically Induced Doppler Shifts on HF Signals (Proceedings)?, ARRL-TAPR Digital Communications Conference. ARRL-TAPR, Virtual, 2021.\par \par S. A.  Cerwin, Collins, K. V., Joshi, D. Raj, and Frissell, N. A., ?Experimental and Computational Methods to Analyze Complex Doppler Behavior of Ionospherically Induced Doppler Shifts on HF Signals?, in American Geophysical Union Fall Meeting, New Orleans, LA, 2021.\par \par K. V.  Collins, Kazdan, D., and Frissell, N., ?Ham Radio Creates a Planet-Sized Space Weather Sensor Network?, QST, vol. 105, 12 vol., no. 8, pp. 55-58, 2021.\par \par K.  Collins, Kazdan, D., and Frissell, N., ?Ham Radio Forms a Planet-Sized Space Weather Sensor Network?, Eos, vol. 102, 2021.\par \par K. V.  Collins, Frissell, N. A., Erickson, P. J., Brandt, L., MacDonald, E., Black, M., and Perry, G., ?HamSCI Campaign Co-Design (Panel Discussion)?, in HamSCI Workshop 2021, Virtual, 2021.\par \par N. A.  Frissell, Sanchez, D., Perry, G. W., Kaeppler, S. R., Joshi, D. Raj, Engelke, W. D., Thomas, E. G., Coster, A. J., Erickson, P. J., J. Ruohoniemi, M., Baker, J. B. H., and Gerzoff, R., ?HamSCI: Ham Radio Science Citizen Investigation?, ISWAT Meeting. International Space Weather Action Team (ISWAT), Virtual, 2021.\par \par N. A.  Frissell, Cowling, S. H., McDermott, T. C., Ackermann, J., Typinski, D., Engelke, W. D., Larsen, D. R., McGaw, D. G., Kim, H., Witten, II, D. M., Madey, J. M., Collins, K. V., Gibbons, J. C., Kazdan, D., Montare, A., Joshi, D. Raj, Romanek, V. I., Nguyen, C. D., Cerwin, S. A., Liles, W., Rizzo, J. D., Miller, E. S., Vierinen, J., Erickson, P. J., and West, M. Lou, ?HamSCI Personal Space Weather: Architecture and Applications to Radio Astronomy?, in Annual (Summer) Eastern Conference, Virtual, 2021.\par \par N. A.  Frissell, Joshi, D., Romanek, V. I., Collins, K. V., Montare, A., Kazdan, D., Gibbons, J., Engelke, W. D., Atkison, T., Kim, H., Cowling, S. H., McDermott, T. C., Ackermann, J., Witten, D., Madey, J., H. Silver, W., Liles, W., Cerwin, S., Erickson, P. J., Miller, E. S., and Vierinen, J., ?HamSCI Personal Space Weather Station (PSWS): Architecture and Current Status?, in NSF CEDAR (Coupling, Energetics, and Dynamics of Atmospheric Regions), Virtual, 2021.\par \par N. A.  Frissell, Joshi, D. Raj, Collins, K., Aidan, M., Kazdan, D., Engelke, W. D., Atkison, T., Kim, H., Cowling, S. H., McDermott, T. C., Ackermann, J., Witten, D., Madey, J., H. Silver, W., Liles, W., Cerwin, S. A., Erickson, P. J., Miller, E. S., and Vierinen, J., ?HamSCI Personal Space Weather Station (PSWS): Fall 2021 Update?, TAPR-ARRL Digital Communications Conference. ARRL-TAPR, Virtual, 2021.\par \par S. H.  Cowling, ?Hardware System Update: Data Engine, RF Module, Clock Module, Magnetometer?, ARRL-TAPR Digital Communications Conference. ARRL-TAPR, Virtual, 2021.\par \par V. I.  Romanek, Frissell, N. A., Joshi, D., Liles, W., Trop, C., Collins, K., and Perry, G., ?HF Doppler Observations of Traveling Ionospheric Disturbances in a WWV Signal Received with a Network of Low-Cost HamSCI Personal Space Weather Stations?, in NSF CEDAR (Coupling, Energetics, and Dynamics of Atmospheric Regions), Virtual, 2021.\par \par V. I.  Romanek, Frissell, N. A., Joshi, D. Raj, Liles, W., Trop, C. C., Collins, K. V., and Perry, G. 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Danielides, Skripatchev, V., and Chum, J., ?InFlaMo ? an European SID Monitoring Network Celebrates its First Solar Cycle?, HamSCI Workshop 2021. HamSCI, Scranton, PA (Virtual), 2021.\par \par G. W.  Perry, Chu, F., and Teklinski, P., ?K2MFF: Nearly a Century of Advancing the Radio Art at NJIT?, HamSCI Workshop 2021. HamSCI, Scranton, PA (Virtual), 2021.\par \par D. Raj Joshi, Frissell, N. A., M. Sarwar, S., Sami, S., J. Ruohoniemi, M., Baker, J. B. H., Coster, A. J., Erickson, P. J., Liles, W., Vierinen, J., and Groves, K., ?Observations of Mid-latitude Irregularities Using the Oblique Ionosonde Sounding Mode for the HamSCI Personal Space Weather Station?, in American Geophysical Union Fall Meeting, New Orleans, LA, 2021.\par \par D. F.  Sanchez, Frissell, N. A., Perry, G. W., Engelke, W. D., Coster, A., Erickson, P. J., J. Ruohoniemi, M., and Baker, J. B. H., ?Observing Large Scale Traveling Ionospheric Disturbances using HamSCI Amateur Radio: Climatology with Connections to Geospace and Neutral Atmospheric Sources?, in NSF CEDAR (Coupling, Energetics, and Dynamics of Atmospheric Regions), Virtual, 2021.\par \par D. F.  Sanchez, Frissell, N. A., Perry, G. W., Engelke, W. D., Coster, A., Erickson, P. J., J. Ruohoniemi, M., and Baker, J. B. H., ?Observing Traveling Ionospheric Disturbances using HamSCI Amateur Radio: Validation and Climatology?, HamSCI Workshop 2021. HamSCI, Scranton, PA (Virtual), 2021.\par \par H.  Kim, Madey, J., Witten, II, D. M., Larsen, D., Cowling, S. H., Frissell, N. A., and Weygand, J., ?Preliminary Data Analysis of PSWS Magnetometer Data?, HamSCI Workshop 2021. HamSCI, Scranton, PA (Virtual), 2021.\par \par K. V.  Collins, Gibbons, J., and Kazdan, D., ?PSWS Grape Hardware: Version 1.0 and Pilot Experiments?, HamSCI Workshop 2021. HamSCI, Scranton, PA (Virtual), 2021.\par \par J.  Madey, Witten, II, D., Kim, H., Larsen, D., Cowling, S. H., and Frissell, N. A., ?PSWS Ground Magnetometer Hardware?, HamSCI Workshop 2021. HamSCI, Scranton, PA (Virtual), 2021.\par \par H.  Kim, Madey, J., Witten, D., Larsen, D. R., Cowling, S. H., Frissell, N. A., and Weygand, J., ?PSWS Magnetometer Science Update?, ARRL-TAPR Digital Communications Conference. ARRL-TAPR, Virtual, 2021.\par \par N. J.  Petit and Chi, P., ?SMART Ground Based Magnetometer Array - an Initial Look?, HamSCI Workshop 2021. HamSCI, Scranton, PA (Virtual), 2021.\par \par N. A.  Frissell, Sanchez, D. F., Perry, G. W., Joshi, D., Engelke, W. D., Thomas, E. G., Coster, A., Erickson, P. J., J. Ruohoniemi, M., and Baker, J. B. H., ?Sources of Large Scale Traveling Ionospheric Disturbances Observed using HamSCI Amateur Radio, SuperDARN, and GNSS TEC?, in NSF CEDAR (Coupling, Energetics, and Dynamics of Atmospheric Regions), Virtual, 2021.\par \par N. A.  Frissell, Sanchez, D. F., Perry, G. W., Joshi, D. 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Frissell, Joshi, D., Collins, K., Montare, A., Kazdan, D., Gibbons, J., Mandal, S., Engelke, W., Atkison, T., Kim, H., Gerrard, A. J., Vega, J. S., Cowling, S. H., McDermott, T. C., Ackermann, J., Witten, D., Silver, H. W., Liles, W., Cerwin, S., Erickson, P. J., and Miller, E. S., ?HamSCI Distributed Array of Small Instruments Personal Space Weather Station (DASI-PSWS): Architecture and Current Status (Invited)?, in NSF CEDAR (Coupling, Energetics, and Dynamics of Atmospheric Regions), Santa Fe, NM (Virtual), 2020.\par \par S.  Cowling, ?Hands-On-SDR: TangerineSDR?, QEX, pp. 10-15, 2020.\par \par S.  Cerwin, ?HF Propagation Measurement Techniques and Analyses?, ARRL-TAPR Digital Communications Conference. ARRL-TAPR, Virtual, 2020.\par \par D.  Sanchez, Frissell, N. A., Perry, G., Engelke, W. D., Coster, A., Erickson, P. J., Ruohoniemi, J. M., and Baker, J. B. 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Collins, Kazdan, D., and Gibbons, J., ?Update on the Low?Cost Personal Space Weather Station?, in HamSCI Workshop 2020, Scranton, PA, 2020.\par \par S.  Cerwin, ?WWV Time Tick Arrival Time Study to Investigate Multiple Modes During Daily Dawn and Dusk Transitions?, in HamSCI Workshop, Scranton, PA, 2020.\par \par S.  Cowling, ?FPGA-based HF transceiver running on an RPi with a MW loop antenna that works well indoors (Demonstration)?, in HamSCI Workshop 2019, Cleveland, OH, 2019.\par \par M. S.  Islam, Xereas, G., Chodavarapu, V. P., and Mandal, S., ?GPS-disciplined MEMS oscillators for amateur radio applications (Poster)?, in HamSCI Workshop 2019, Cleveland, OH, 2019.\par \par S.  Cerwin, ?Ionospheric Disturbances at Dawn, Dusk, and During the 2017 Eclipse?, in HamSCI Workshop 2019, Cleveland, OH, 2019.\par \par S.  Cerwin, ?Ionospheric Disturbances at Dawn, Dusk, and During the 2017 Eclipse?, in Hamvention HamSCI Forum, Xenia, OH, 2019.\par \par N. A.  Frissell, Sanchez, D. 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A., Knuth, A. A., Erickson, P. J., Nikoukar, R., Chartier, A. T., Santos, P., Brum, C., Fentzke, J. T., Hanley, T. R., and Gerrard, A. J., ?Sounding the Ionosphere with Signals of Opportunity in the High-Frequency (HF) Band?, in HamSCI Workshop 2019, Cleveland, OH, 2019.\par \par S.  Cowling, ?Update on Personal Space Weather Station & SDR Hardware?, in Hamvention HamSCI Forum, Xenia, OH, 2019.\par \par N. A.  Frissell, Ackermann, J. R., Bern, D., Ceglia, F., Earle, G. D., Erickson, P. J., Gerrard, A. J., Gerzoff, R., Gladstone, P., Gunning, S. W., Huba, J. D., Katz, J. D., Miller, E. S., Moses, M. L., Reyer, S. E., Rose, S. W., Shovkoplyas, A., Silver, H. W., Smith, P., Vega, J. S., West, M. L., and Williams, R., ?Initial Results of HamSCI Ham Radio 21 August 2017 Eclipse Ionospheric Experiments?, in American Meteorological Society Annual Meeting, Austin, TX, 2018.\par \par S.  Cerwin, ?Ionospheric Disturbances at Dawn, Dusk, and During the 2017 Eclipse?, QEX, no. 310, pp. 8-14, 2018.\par \par M. L.  Moses, Burujupali, S., Brosie, K., Dixit, S., Earle, G. D., Kordella, L., Frissell, N. A., and Chitale, C., ?Analysis of the August 2017 Eclipse?s Effect on Radio Wave Propagation Employing a Raytrace Algorithm?, in NSF CEDAR (Coupling, Energetics, and Dynamics of Atmospheric Regions), Keystone, CO, 2017.\par \par A. C.  Cushley, Kabin, K., and No\'ebl, J. - M., ?Faraday Rotation of Automatic Dependent Surveillance-Broadcast (ADS-B) Signals as a Method of Ionospheric Characterization?, Radio Sci., vol. 52, no. 10, pp. 1293 - 1300, 2017.\par \par J. D.  Katz, Frissell, N. A., Vega, J. S., Gerrard, A. J., Gerzoff, R. B., Erickson, P. J., Miller, E. S., Moses, M. 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Liles, Mitchell, C., Cohen, M., Earle, G., Frissell, N., Kirby-Patel, K., Lukes, L., Miller, E., Moses, M., Nelson, J., and Rockway, J., ?On the use of solar eclipses to study the ionosphere?, in 15th International Ionospheric Effects Symposium IES2017, Alexandria, VA, 2017.\par \par M. L.  Moses, Dixit, S., Earle, G. D., Frissell, N. A., Kordella, L., Han, X., and Chitale, C., ?Characterizing the Ionosphere Using a Commercial Off the Shelf Software Defined Radio System?, in Fall 2016 American Geophysical Union, San Francsico, 2016.\par \par N. A.  Frissell, Moses, M. L., Earle, G., McGwier, R. W., Miller, E. S., Kaeppler, S. R., H. Silver, W., Ceglia, F., Pascoe, D., Sinanis, N., Smith, P., Williams, R., Shovkoplyas, A., and Gerrard, A. J., ?HamSCI: The Ham Radio Science Citizen Investigation?, in Fall 2016 American Geophysical Union, San Francisco, 2016.\par \par N. A.  Frissell, Miller, E. S., Kaeppler, S. 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