We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. We do not encourage any radio operations contrary to regulations. Always consult with the appropriate authorities if you have questions concerning what is permissable in your locale.


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Date Registered:
June 25, 2021, 0031 UTC
Local Time:
March 27, 2023, 0938 UTC
Last Active:
June 25, 2021, 0038 UTC

Item image   Sippican Mark IIa Meteorological Radiosonde