3 ms·Coincidentally, 50 Ohms is also impedance of a typical whip antenna near ground.by jojobas 7y agoCoincidentally, 50 Ohms is also impedance of a typical whip antenna near ground.mNovak 7y agoRoughly.. If I recall, a quarter-wave monopole will be 37 ohmsjojobas 7y agoThat would be without ground or something.