2017 Total Solar Eclipse

Map of US Eclipses from 2017-2052

On 21 August 2017, a total solar eclipse caused the shadow of the moon to traverse the United States from Oregon to South Carolina in just over 90 minutes. Although the ionospheric effects of solar eclipses have been studied for over 50 years, many unanswered questions remain. HamSCI invited amateur radio operators to participate in a large-scale experiment which characterized the ionospheric response to the total solar eclipse and targeted open science questions.

Hundreds of ham radio operators helped out by getting on the air with the Solar Eclipse QSO Party, a contest-like operating event designed to generate data for studying the eclipse. Other HamSCI experiments included making HF Frequency Measurements, recording HF spectra, setting up a Reverse Beacon Network Receiver, participating in VLF/LF receiving experiments, and listening to AM broadcast stations. See our Eclipse Get Involved for more information.

Are you curious about how prior total solar eclipses affected the ionosphere? Read about radio experiments during the 1999 United Kingdom Total Solar Eclipse coordinated by the Rutherford Appleton Laboratory.

Thanks for participating! Both science and SEQP results for 2017 are now available on the SEQP page. Stay tuned for future experiments pertaining to the October 14, 2023 annular solar eclipse and April 8, 2024 total solar eclipse!

SEQP

Get on the air with the Solar Eclipse QSO Party!

Get Involved!

How can hams and the general public get involved?

The Experiment

Details of the plan to study the 2017 solar eclipse.

Join the HamSCI-Eclipse Mailing List

2024 Workshop Program and Registration Links Announced

Tuesday, February 27, 2024 - 06:34

Submitted 8 months 1 week ago by af8a.

The agenda for the March 22-23, 2024 HamSCI workshop at Case Western Reserve University in Cleveland, Ohio has been published and can be viewed here! The workshop will focus on the theme of Alignments - between the Sun, Moon and Earth; between collegiate amateur radio recreation and STEM curriculum; between data collection and analysis; between professional and citizen science.

HamSCI Workshop 2024 Abstract Submission Open

Friday, January 12, 2024 - 10:58

Submitted 9 months 4 weeks ago by w2naf.

We are looking for presenters for the March 22-23, 2024 HamSCI workshop at Case Western Reserve University in Cleveland, Ohio! The workshop will focus on the theme of Alignments - between the Sun, Moon and Earth; between collegiate amateur radio recreation and STEM curriculum; between data collection and analysis; between professional and citizen science. We are preparing for the solar eclipse of 8 April 2024, for which Cleveland will be in totality. If you would like to present, please visit https://hamsci.org/hamsci2024 to submit an abstract. Abstracts are due by February 10, 2024. Presenters will be notified by March 1, 2024.

SAQ scheduled to air on Alexanderson Day, July 2nd, 2023

Friday, June 9, 2023 - 13:11

Submitted 1 year 5 months ago by w2naf.

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.

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