That is the free space Z. Closer to the earth and other objects, the z gets lower.
73, Ed Richards K6UUZ Simi Valley, Ca 93065 Home of the Air Force 1 pavilion On Sat, 30 Dec 2006 22:45:02 -0600 Jack Schmidling <[EMAIL PROTECTED]> writes: > The more I read, the confusder I get. > > If a half wave dipole has a center feedpoint impedance of 73 ohms, > why > am I using 50 ohm coax. > > I just put my new EZ hang to use today and discovered that my coax > is > not long enough to take advantage of the much higher ends and is > pulling > the center down. > > I was going to buy a roll of RG8X but then learned that RG58U is > good to > over 430W so I might as well stick with this as weight is an issue. > > 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? > > JACK K9ACT > > -- > PHOTO OF THE WEEK: http://schmidling.com/pow.htm > Astronomy, Beer, Cheese, Fiber,Gems, Sausage,Silver > http://schmidling.com > > ______________________________________________________________ > 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] > > ______________________________________________________________ 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]
