You're missimg nothing, Jack. There is no issue, really. Hooking up 50 ohm coax to a 75 ohm anteena only provides an SWR of 1.5:1, which is not excessive. That's for a flat-top dipole. (An inverted V Is indeed 50 ohms, or close to it.) Any pi-network can handle that and match it. If running a rice-box, any tuner can match it too. So Jack, there never has been a problem with 75 ohm dipoles, since the mismatch is not a big deal.
Ed, VA3ES Jack Schmidling wrote: If a half wave dipole has a center feedpoint impedance of 73 ohms, why am I using 50 ohm coax. snip In the process of hunting up a source for coax I stumbled into this quandary. Every source I look at says 73 ohms for a dipole. What am I missing? ______________________________________________________________ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:[email protected]
