Here we take a look at my solution to controlling the Xiegu XPA125B 100 Watt HF Amplifier, for both PTT and automatic Band selecting.
Xiegu XPA125B Amplifier:
Radioddity Discount Code: https://radioddity.refr.cc/techminds
https://s.click.aliexpress.com/e/_mtYNPGq
Digital To Analogue Converter:
https://s.click.aliexpress.com/e/_EubZHlD
Arduino code:
https://github.com/TechMindsYT/HL2-I2C-BandVolts
Arduino boards:
https://s.click.aliexpress.com/e/_DdV0iCJ
Hermes Lite 2 Original Bandvolts Circuit:
https://github.com/softerhardware/Hermes-Lite2/wiki/Band-Volts
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