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.

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.

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.

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.

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.

V. I.  Romanek, Frissell, N. A., Joshi, D. Raj, Liles, W., Trop, C., Collins, K., and Perry, G. W., ?HF Doppler Observations of Traveling Ionospheric Disturbances in the WWV Signal Received with a Network of Low-Cost HamSCI Personal Space Weather Stations?, ARRL-TAPR Digital Communications Conference. ARRL-TAPR, Virtual, 2021.

V. I.  Romanek, Frissell, N. A., Joshi, D. Raj, Liles, W., Trop, C., Collins, K., and Perry, G. W., ?HF Doppler Observations of Traveling Ionospheric Disturbances in the WWV Signal Received with a Network of Low-Cost HamSCI Personal Space Weather Stations?, in American Geophysical Union Fall Meeting, New Orleans, LA, 2021.

D. Raj Joshi, Frissell, N. A., Liles, W., and Vierinen, J., ?Observations of Mid-latitude Irregularities Using the Oblique Ionosonde Sounding Mode for the HamSCI Personal Space Weather Station (Proceedings)?, ARRL-TAPR Digital Communications Conference. ARRL-TAPR, Virtual, 2021.

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.

D. Raj Joshi, Frissell, N. A., Liles, W., and Vierinen, J., ?Simultaneous observations of mid-latitude Ionospheric Irregularities in HamSCI Personal Space Weather Station and SuperDARN radar?, SuperDARN Workshop. SANSA, Virtual, 2021.

N. A.  Frissell, Sanchez, D. F., Perry, G. W., Joshi, D. Raj, Engelke, W. D., Thomas, E. G., Coster, A. J., 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?, SuperDARN Workshop. SANSA, Virtual, 2021.

N. A.  Frissell, Sanchez, D. F., Perry, G. W., Kaeppler, S. R., Joshi, D. Raj, Engelke, W. D., Thomas, E. G., Coster, A. J., 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?, ARRL-TAPR Digital Communications Conference. ARRL-TAPR, Virtual, 2021.