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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  • ΣSDR KiwiSDR online
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Date Registered:
February 25, 2016, 2221 UTC
Local Time:
July 24, 2021, 1027 UTC
Last Active:
July 23, 2021, 2257 UTC
- Rob

CT/MA border
Afredri SDR-Net with multiband dipole at 65 ft.
Email: commsigma@gmail.com
KiwiSDR online - http://sigmasdr.ddns.net:8073/
ΣSDR Blog - https://n1nte.blogspot.com/