We use this type of antenna often in amateur radio. I do not like the copper tape antenna used in the KR and intend to replace it with this instead. Here is a link to the "Bazooka" antenna . If you have any questions feel free to write me.
http://www.hamuniverse.com/vertbazooka.html Here is a link to common Coaxial Cable velocity factors. I will be using RG8, a very common type. http://www.nr6ca.org/vf.html -- Glenn Martin KR2 N1333A Amateur Radio License N5PQ Biloxi, MS, 39532 rep...@martekmississippi.com