@proceedings {957, title = {How Do We Put a HamSCI Personal Space Weather Station in Antarctica?}, year = {2025}, month = {03/2025}, publisher = {HamSCI}, address = {Newark, NJ}, abstract = {

We present initial ideas on how to place a HamSCI Personal Space Weather Station at United States Antarctic Research Stations.

}, author = {Rebecca Potter and Nina Tormann and Christine Zakzewski and Majid Mokhtari and Nathaniel Frissell and Ken Martin and Jermey McLynch and Hyomin Kim and Gareth Perry and Tedi Godfrey and David McGaw and James LaBelle} } @proceedings {961, title = {A Low-Cost Low-Power Chirp Ionosonde for Studying Eclipse Ionospheric Impacts}, year = {2025}, month = {03/2025}, publisher = {HamSCI}, address = {Newark, NJ}, abstract = {

The ionosphere is a region of the atmosphere characterized by both ions and electrons. It is highly active and experiences changes in parameters such as electron density at different altitudes, based on the energy absorbed from the sun. Ionosondes are a type of radar used to gather data about the height of the ionosphere by transmitting a signal towards the ionosphere.\  This signal is refracted back to the Earth{\textquoteright}s surface and received in such a manner that return echoes can be timed to calculate the height profile of the bottomside ionosphere. Traditional ionosondes require large antenna systems and high amounts of power. Recent advancements in software defined radio (SDR) technology, advanced digital signal processing (DSP), and computational efficiency enable the size, cost, and power demands of an ionosonde system to be reduced. Two systems are currently used in this project: the Ettus N200 Universal Radio Peripheral (USRP) and the newer Red Pitaya SDRlab 122-16. Using amateur radio fan dipoles and GNU Radio code, the Ettus system was used successfully to sound the ionosphere during the 2024 total solar eclipse. It recorded virtual layer height data comparable to multimillion-dollar ionosonde systems. We are now working to assemble the Red Pitaya system into a smaller form that can be assembled inexpensively and operated with ease. In the following weeks we will improve our sounding methods to be able to obtain more data.

}, author = {Gerard Piccini and Robert McGwier and Robert Spaletta and Nathaniel Frissell and Majid Mokhtari and Philip Erickson} } @proceedings {864, title = {Design and 3D Printing of the Grape 2 Enclosure}, year = {2024}, month = {03/2024}, publisher = {HamSCI}, address = {Cleveland, OH}, abstract = {

This poster presents the design of the 3D printed enclosure for the Grape 2 Personal Space Weather Station HF Doppler Receiver.

}, author = {Majid Mokhtari and John Gibbons and Nathaniel A. Frissell} } @proceedings {762, title = {Development of HamSCI PSWS Ground Magnetometer and Data Visualization on the PSWS Central Website}, year = {2023}, month = {03/2023}, publisher = {HamSCI}, address = {Scranton, PA}, author = {Hyomin Kim and Nathaniel A. Frissell and David Witten and Julius Madey and William D. Engelke and Tom Holmes and Majid Mokhtari and Scotty Cowling and Anderson Liddle and Nicholas Muscolino and Zhaoshu Cao} } @proceedings {758, title = {Low-Cost Low-Power Ionosonde}, year = {2023}, month = {03/2023}, publisher = {HamSCI}, address = {Scranton, PA}, abstract = {

Ionosondes are a type of radar used to gather data about the height of the ionosphere. Typically, these systems can easily cost thousands of dollars and demand a lot of power. Using newer software defined radio technology, our goal is to develop a low cost, low power ionosonde.

}, author = {Gerard N. Piccini and Robert W. McGwier and Robert A. Spalletta and Majid Mokhtari and Nathaniel A. Frissell and Philip J. Erickson} }