This is an introductory-level presentation on the NEC antenna modeling package, available for free on multiple platforms. NEC allows you to model almost any antenna design to understand its operation and performance. This is NOT a comprehensive treatise on how NEC works; the scope of such a presentation is far beyond the time we have. Instead, NEC is treated as a “Black Box” that an amateur can use to try out antenna designs and modifications. 

 I have found NEC to be very is valuable for evaluating new designs to see if they will even work, before cutting up a bunch of wire or tubing.

 Among other designs, we will model the 2 Meter Yagi that is being offered for build in a subsequent session.

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