This post is primarily meant for Ward Harrison, AE6TY. I would recommend that the SimNec name be eliminated and just call it SimSmith with a new major revision number. Simsmith has been enhanced by ad

The nec2c image provided by version 1.2b9 does not work on old macs. I’ve released 1.2b10 to the web. It contains an image built on an old mac called “nec2-old-mac-x86”. I don’t know the exact version

I'm on learning curve with SimNEC. How do I change the ground parameter in RUSE block. thanks, Tim N6TH

Any CocoaNEC users out there? I looked on web for forum/user groups, no luck. Cannot get Transmission Line function to work. When I use Network>TL and fill in Zo & length, model does not run at all. W

Hi, Is it possible to see Lambda on the outer edge of the circle as in the of Smith Chart printed?. Thanks in advance /Antonio-ea7hj

This is mainly in response to N6TH, but since it includes items on other modeling programs I thought it should be on a separate thread. I am using 4NEC2 under parallels and have been very pleased with

I'm trying to use SimSmith to calculate values for a matching network but I am not getting the expected results when I use the calculated values in the real world. This is on a PCB with a trace antenn

Hi In my NanoVNA H4, when I make measurements with the Smith Chart, the values are (Example: 31,10Ω and 3,83pF) or (Example: 35,33Ω and 3.97nH). I have always used Smith's Chart with standardized valu

I there a way to model two antennas that are basically side by side to find out the voltage and currents induced by the transmitting station onto the antenna of the neighboring receive station's anten

When opening or saving a file and navigating to a different path in the directory structure, I find SimSmith very, very slow, especiall when navigating to base points in large file systems. When savin

If you’re playing around with it, 1p1d is substantially more robust. Please update a your earliest convenience thanks w

Hi, I'm getting the error: 'maybe executable code before port declarations? (indicated error location is approximate) ' (see my attachment). Cannot figure out why. I'm using a Macbook pro with Simnec

I want to add a series transformer with a certain impedance ratio but i do not recognize any of the available circuit symbols as being that for a transformer - where is it? Thanks.

Good morning I just installed SimSmith 18.4 on a brand new computer I got and I just can't use the transformer component. As soon as I add it, I get a message "Error in Transformer A <#>0000M:Expected

I want to set up simsmith on Ubuntu 20.04, but I am not a Ubuntu guru, nor do I really know how this Post thing works. I need fairly detailed instructions how to install simsmith on Ubuntu 20.04 - sta

reference : 1. An improved analytical model for broadside coupled transmission line used on planar circuit. 2. Even and Odd Mode impedances.

Support for wireless nanoVNA. I got tired of worrying about ‘choking’ my nanoVNA USB cable and being ‘in the field’ of my antenna. So I scrounged around and found a Raspberry Pi ZERO, did some coding,

I spent the weekend building and measuring a set of 230 MHz antennas. The focus of this project was to determine the correct way to model a choke balun in NEC. The specific point of interest was in ve

Is it possible to model branch line hybrids with SimSmith? I am not very experienced with SimSmith but it doesn't seem like the offered components allow you to split transmission lines and then recomb

I've specified a number of RUSE blocks and want to do a mix & match - I tried to do a copy and paste between 2 open copies of SimSmith but that didn't work. How do I import a RUSE block from another .