3 ms·

Could you tell me where the /4 comes from, please?

• jacquesm 9y ago
  Quarter wavelength. Waves will flow around something smaller than 1/4 of their wavelength almost without interruption.
  • gerdesj 9y ago
    Thanks. Could you point me in the direction of some reading material? That has the look of a rule of thumb, which as a civil engineer that ended up in IT, sounds a bit familiar.
    • vvanders 9y ago
      I've heard good stuff about the ARRL antenna book, although it's pretty large and spendy.