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.


Humat Jr. Member

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Date Registered:
February 03, 2013, 1735 UTC
Local Time:
March 21, 2023, 2021 UTC
Last Active:
August 01, 2022, 0948 UTC

Item image   The Underground Frequency Guide by Donald W. Schimmel - Classic SWL Book