A CollinearAntenna made from segments of coaxial cable. (http://wireless.gumph.org/articles/homemadeomni.html Gumphs) omni with (http://wlan.eridu.net/projects/gumph-smarm-omni.html Ryans) patch ---- {http://wlan.eridu.net/projects/colinearomni2.4Ghz-gumph.png Coaxial Collinear}