I built another Radioless node.

This utilizes the Model RL-20 Radioless Adapter from Kevin Custer at Masters Communications.

  • Raspberry Pi3 B+
  • Alinco EMS-57 Microphone (8pin)
  • 3 amp mini 12v-5v buck converter
  • PAM8403 3 watt stereo amplifier board MAX98306
  • 250k Volume Pot
  • 3 watt 4 ohm mini speaker 3inch speaker with grille
  • Case TBD

I get asked frequently about how I built my node using the RL-20 Interface so here is a quick schematic I drew showing how I did mine. There are other ways to do this but this worked for me at the time. I may revisit project utilizing some of the features available on the interface board.

W2YMM Radioless node utilizing the RL-20 Interface