I have downloaded the NEC2 manual in PDF and am reading the TL section.
The TL card requires endpoints for both ends of the transmission line. I've made very short (one-segment) lines as to act as the other end of the stub (and of the 'real' transmission line) but the results that arise from these examples is woefully wrong.http://wireless.ictp.it/school_2005/download/nec2/nec_part4.pdf
is a reprint of an article by Cebik where he explains how to use transmission lines. Actually, he doesn't really explain how to use transmission lines, but he describes some of how to use them with EZNEC and NEC-Win. Unfortunately, the figures in the reprint are so fuzzy that I can't read them to get the ideas, and the only example models I have found online for transmission lines are for things like log-periodic arrays which while interesting don't really apply to my situation.
Thanks for the help! Anyone else, please feel free to comment. Thanks again!