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 permissible in your locale.


RickF Jr. Member

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Date Registered:
September 24, 2012, 1315 UTC
Local Time:
March 02, 2024, 0611 UTC
Last Active:
January 26, 2022, 2325 UTC

Item image   Vintage Rockwell PPS-4/1 MM75 A7517-12 4 Bit CPU / Microprocessor NOS