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JackKelly

Member Since: January 22, 2013

Country: United Kingdom

  • Excellent reply, thanks loads!

  • Thanks loads for looking into this. Forgive my ignorance, but does the fact that the RFM12B includes a balun mean that the RFM12b should be used with a ¼-wave whip with a ground plane (which has an impedance around 50 ohms) rather than a dipole consisting of two ¼-wave lines end-to-end (which has an impedance of around 300 ohms)?. I’ve done a tiny bit of testing which seems to suggest that a dipole does perform a little better than a ¼-wave whip with ground plane, but this is just very preliminary testing.

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