Antenna Modeling With 4NEC2. Presented to HOTARC. By Craig Weixelbaum. May 22, Basic Modeling Approach using 4Nec2. The goals of this A Beginner’s Tutorial for 4NEC, a NEC2 Distribution. Written and Tested by Scroll down, and find “Latest 4nec2 version ()” under the “Downloads” header. Hello! Does anyone know where I can find some good tutorial/guide to get a basics of how to use 4nec2. I am total beginner. I was able to find.

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I am total beginner.

Antenna Simulation Tutorials using 4nec2

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But rather than using another wire, realize that I already have a wire coming back down from the feed point, namely the outside of the co-ax feed itself. One way to get a handle on this is to compare signal levels against an isotropic antenna.

In my opinion once you know how to launch the program, the next logical step is to run an example antenna and play around with it until you understand some of the controls of the program and how to interpret the output.

I was able to find this: An output file contains the results of a simulation of the input file. Register for a free QRZ account. I’ve run into several on U Tube and for whatever reason, they just don’t get the information across to my lil’ ole pea brain. The programmers 4enc2 abstract some of the complexity so it seems more intuitive, but I find the 4NEC2 to be a pretty solid tool.


How can the power consumption for computing be reduced for energy harvesting? The lurker i am. If you are beyond this stage and have specific questions about entering antenna simulation tutorkal or interpreting results, you can ask them here and someone will likely be able to point you in the right direction.

4nec2 tutorial | QRZ Forums

Well, I delete this message and open “file” box. To drive this antenna several questions come up. So, I’m curious what you liked or didn’t like.

I have tall trees. Once you know how to analyze and interpret an existing example antenna. Published tutoril Gary Rondeau. Internet research yielded the following formula, which seems to be plenty good for what we want.

I lose files sometimes in 4nec2, cannot see the logic of that organisation. Unlike a simple choke on a feed to 4nrc2 the RF out of the shack, the choke for this application has a much more difficult job to do. Reflections from the ends of the cable will tend to cancel each other out with this special length cable.

Antenna Simulation Tutorials using 4nec2 – KW4FB

CMOS Technology file 1. AF modulator in Transmitter what is the A? For example i got fully lost in the organisation of this soft. Losses in inductor of 4ned2 boost converter 9. Vertical antennas are nice this way, since you just need a wire straight up in the air and you naturally get an azimuthally symmetric pattern.

Maybe it is something like C: PNP transistor not 4nec 2. You will need to know this eventually, but in my opinion, doing this at the beginning before you know what you are trying to analyze makes it more confusing.


You can store these wherever you want as well.

The gain of elevated antennas is especially better for low radiation angles less than 15 degrees. The outside of the coax is part of the antenna system itself, and includes the RF choke that defines the lower driven element of the antenna.

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You can choose which pattern to observe. Just now as i open 4nec2, it shows me: Optimizer window shows rapid convergence on correct length L1 to minimize SWR.

Note that the capacitance is almost entirely just a function of the coil diameter.

A Simple Pull-up Mono-Band Verticle Dipole Antenna Design – and 4NEC2 Tutorial

I think that many technically oriented folks can learn to navigate it. Skip to content Vertical dipole with transmission line feed and choked feed line. For the resonant feed line gutorial, the choke is located at the end of the radiating element where the local impedance is very high — voltage maximum and current approaching zero. Because the choke is so critical, I decided to model several different versions and mis-tunings to see the effects.

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