EZNEC gripe I dont know how to use EZNEC 5.0 demo properly. I modeled tipped UHF antennas using it and it told me 20 degree downtip is better for low angle radiation than vertical but when I tried it, it seemed worse. Probably my model was wrong. I dont understand what all those segments are too. Why does it frequenty tell me segments are too long? Too long for what? A better interface for newbies would be for an antenna program to just ask you a lot of question like is this antenna for a base station, mobile, outdoor, indoor... Then ask you will it be vertical, horizontal, dipole, monopole... giving examples, pictures, and descriptions of each. Other useful questions would be is it for DX work, local work, high angle work... explaining the pros and cons of each one. It would also be good if it gave you suggestions like how to optimize the setup for a particular task. This stuff about segments and cryptic abbreviations might be ok for techies, but newbies dont know what that stuff is. It would also be good if they showed you step by step how to model a few simple antennas starting from a blank screen. That is, walk you thru each entry that needs to be made. Teaching by example is very effective. Just showing someone completed templates doesn't explain what each entry in them is for and why they are needed.