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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 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 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 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 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 }