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Open Source SDR Ham Transceiver Prototype

The future is here: LinHT booted up successfully for the first time. We believe that Software Defined Transceivers will be the next big trend in amateur radio. LinHT is the most important hardware project in Amateur Radio today. Bruce Perens, K6BP https://perens.com/2025/08/12/whats-wrong-with-ardc/ The test device has no RF amplifier (although we will include GRF5604 RF amplifier in the next revision, see this). The output power of this test setup is around 5dBm. Frequency range: 420-450MHz

2025 ARRL Field Day

ARRL Field Day is a radio communications event that brings together amateur radio operators (also called “hams”) within your community. The theme for 2025 Field Day is “Radio Connects” – highlighting the many ways that wireless technology connects people across distances near and far. The event is part picnic, campout, practice for emergencies, informal contest, and most of all, fun! ARRL Field Day is the most popular ham radio activity held annually in the US and Canada. On the fourth weekend i