Packet radio lives on through open source software | Opensource.com
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OpenModem | unsigned.io
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Introduction to Packet Radio | Bug Out Bag Builder
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Kantronics | Radio Modem | Packet communications
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TNC's & Modems - MØFOX Ham Radio Operator
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Packet: An Overview
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Coastal Chipworks TNC-X Packet Modem Kit - YouTube
ESP32 TNC and Audio Relay for HF/VHF Packet Radio | Hackaday.io
