DIY Dipole for Crossfire and FrSky R9M

Details for halfwave dipole for an 868MHz band are quite simple:

  • two 0.8mm copper wires (used for welding) cut to 77mm and solder to the end of coax cable. Here I've used RG174
  • put that thing into a 3D printed casing
  • put antenna tubes around wires. I got mine from here: https://goo.gl/HrWNcY
  • glue everything together
  • you are done!

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