News Articles

WTVG television news coverage of hamsci solar eclipse event

The October, 2023 North American annular solar eclipse may be past, but media coverage of that event, an element of HamSCI's Festivals of Eclipse Ionospheric Science, will live on in a wide variety of informative features.  Magazines, websites, NASA produced videos, local and national news coverage tell the story of how HamSCI citizen scientists and researchers are contributing to science.

HamSCI Workshop and Operating in the SEQP

HamSCI events were the topics of two recent articles appearing in American Radio Relay League (ARRL) publications. The October, 2023 issue of QST magazine featured a story entitled 'HamSCI Workshop 2023:  A Radio Science Collaboration'.  The Workshop was held at the University of Scranton in mid-March, and the article gave a synopsis of the presentations, poster sessions and other activities which took place during the two day event. QST is read by thousands of ARRL Members each month.  It is the flagship journal of the ARRL. The September/October issue of On The Air carried a story on how and why an amateur radio operator would want to operate in HamSCI's Solar Eclipse QSO Parties.  OTA a bi-monthly magazine aimed at those just getting into (or back into) the hobby of amateur radio.  

Cell phones from 2004-2020

Explore the world of ham radio citizen science with HamSCI's exciting social media channels! 

Grape 1 Personal Space Weather Station

Dozens of Grape Personal Space Weather Stations are now on the air, and the network is growing on a regular basis.  In the last week, stations in Cleveland, OH and Jacksonville, FL were added to the Grape network.  They were Node numbers 63 and 64, respectively.  You can learn more about the Grape 1, including all of the details needed to build, operate and contribute data to the HamSCI PSWS Grape Server here.  The full Grape story, with links to the Grape 1 and the  up and coming Grape 2 are here on the HamSCI site.

More than 50 researchers will be in Alaska in August for the resumption of a science summer school that culminates with experiments at the High-frequency Active Aurora Research Program facility operated by the University of Alaska Fairbanks Geophysical Institute.

The Polar Aeronomy and Radio Science Summer School was last held more than 10 years ago. Its return is provided for as part of a five-year $9.3 million National Science Foundation grant awarded to UAF in 2021. That funding allowed creation of the Subauroral Geophysical Observatory for Space Physics and Radio Science at HAARP. - Rod Boyce, University of Alaska Fairbanks Geophysical Institute

Book, Here to There: Radio Wave Propagation

Multiple members of the HamSCI Community contributed content to the new book Here to There: Radio Wave Propagation, recently published by the American Radio Relay League.  

Book chapters include the following:  Fundamentals of Radio Wave Propagation, The Sun and Solar Activity, Sky-Wave, or Ionospheric, Propagation, VHF and UHF Non-ionospheric Propagation, Propagation Predictions for HF Operation, VHF and UHF Mobile Propagation and Amateur Radio and Ionospheric Science.

By Jonathan Rizzo, KC3EEY

SAQ (callsign SAQ) is a VLF transmitting station located in Grimeton, Sweden and is a UNESCO World Heritage Site operated by the Alexanderson Association. The heart of the transmitter is the Alexanderson Alternator and six antenna towers that are iconic to the site. Twice a year, there is a CW transmission at 17.2 kHz with an inspirational message to listeners all over the world. On Alexanderson Day, July 2nd, 2023, SAQ is scheduled to be on the air. More details can be found here (https://alexander.n.se/en/alexanderson-day-2023/) and contains a tentative schedule and a YouTube live broadcast for those who would like to watch the event live.

Dr. Kristina Collins, KD8OXT, is the lead author on a new paper published in the peer-reviewed journal Earth System Science Data entitled Crowdsourced Doppler measurements of time standard stations demonstrating ionospheric variability. The Grape Personal Space Weather Station is a low-cost, high frequency (HF) receiver designed to make precision measurements of signals received from frequency standards stations such as WWV, WWVH, and CHU. Because these standards stations transmit carriers with atomic-clock grade frequency stability, and the Grape receiver achieves similar frequency stability through the use of a GNSS Disciplined Oscillator, variations in the received signal can be attributed to changes in the ionosphere. The new paper demonstrates this in multiple ways, including showing changes in Doppler frequency due to the dawn and dusk terminators, seasonal variations, wave signatures with Medium Scale Traveling Ionospheric Disturbance periods, and the ionospheric response to solar flares. The paper also explains how to access Grape data and the open-source software used to conduct the analysis. The co-author team consists of professionals, students, and HamSCI volunteers, including Kristina Collins KD8OXT, John Gibbons N8OBJ, Nathaniel Frissell W2NAF, Aidan Montare KB3UMD, David Kazdan AD8Y, Darren Kalmbach KC0ZIE, David Swartz W0DAS, Robert Benedict KD8CGH, Veronica Romanek KD2UHN, Rachel Boedicker AC8XY, William Liles NQ6Z, William Engelke AB4EJ, David G. McGaw N1HAC, James Farmer K4BSE, Gary Mikitin AF8A, Joseph Hobart W7LUX, George Kavanagh KB1HFT, and Shibaji Chakraborty KN4BMT. The Grape receivers are the focus of an NSF-funded experiment to study the upcoming 2023 annular and 2024 total solar eclipses. More information on building your own Grape receiver is available at hamsci.org/grape.

A key component of the HamSCI mission is to encourage amateurs to conduct and share their own research and experiments. Larry Serra N6NC recently published two articles in QEX Magazine from his trans-North Pacific 40m propagation projects: The first, "Why Summer 40m Propagation Is So Good Between Japan and the US Pacific Coast" (QEX SEPT/OCT 2022 p.14), examined 12 years of July JA-US 40m propagation conditions and CW Skimmer results on days of JA domestic CW contests and proposed that the relatively calm water under the almost wall-to-wall summertime North Pacific HIGH pressure centers provided nearly +12dBm enhanced low-angle signal strength due to a reduction of surface reflection absorptions in the 3-ionospheric refraction, 2-sea surface reflection propagation path.

HamSCI will play a major role at the 2023 Dayton Hamvention, to be be held in Xenia, Ohio May 19-21, 2023, at the Greene County Fairgrounds.  It is the world's largest ham radio gathering, having over 30,000 attendees in 2022. The Hamvention is an extremely important event for engaging with the amateur radio community, sharing ideas, developing collaborations, and sharing scientific results. The Hamvention 2023 theme is Innovation!, an excellent fit for HamSCI's goals.  HamSCI will be hosting Booth 5008 in the Hertz Building, giving presentations in the ARISS/YOTA area, and hosting the HamSCI Forum.  Support for the 2023 HamSCI Hamvention activities comes from The University of Scranton, the Yasme FoundationTAPR, the National Science FoundationNASA, and volunteers like you.