The Xiegu GPA 100 linear amplifier takes the Hermes Lite 2 from 5 watts QRP to 100 watts on HF and 80 watts on 6 meters. In this video I review the GPA 100, cover its protection features and connectivity options, and show how I integrated it with the Hermes Lite 2 using the IO board, a Raspberry Pi Pico, and custom band switching firmware. No manual band changes needed.
Xiegu GPA 100: https://www.radioddity.com/collections/hf-transceiver/products/xiegu-gpa100?ref=BrokenSignal
Xiegu XPA125B: https://www.radioddity.com/collections/hf-transceiver/products/xiegu-xpa125b?ref=BrokenSignal
📺 Watch the Hermes Lite 2 build: https://www.youtube.com/watch?v=IzPapKMtlNI
HL2 IO Board Firmware: https://github.com/jimahlstrom/HL2IOBoard
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