From the subreddit /r/amateurradio…..
WWV is the US broadcast center of frequency distribution and measurement. In that spirit, during our centennial special event, WW0WWV is sponsoring frequency measurement as part of its activities. It will operate in full-carrier AM mode part of the time at an announced, accurate frequency and invite listeners to calibrate their receivers against its carrier. The station will also, on request, measure amateur station’s AM carriers and report their transmitted accuracy to them and include it on their QSO certificate. The involved WW0WWV station will be an NIST-traceable measurement system.
The Amateur Radio Science-Citizen Initiative, HamSCI, is also hosting a distributed data collection event. Amateurs, shortwave listeners, and others are invited to make a computer record of WWV 5 MHz signal’s Doppler shift during the centennial day, 1 October 2019 UTC. Resulting files may be uploaded for research analysis to a common server. Details and instructions may be found on HamSCI’s website, https://hamsci.org/wwv-centennial-festival-frequency-measurements
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