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.


jta Jr. Member

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Date Registered:
March 12, 2017, 1446 UTC
Local Time:
February 09, 2023, 0552 UTC
Last Active:
February 08, 2023, 1013 UTC

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