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List of free analog and digital electronic circuit simulators, available for Windows, macOS, Linux, and comparing against UC Berkeley SPICE.The following table is split into two groups based on whether it has a graphical visual interface or not.
Software crack illustration. Software cracking (known as "breaking" mostly in the 1980s [1]) is an act of removing copy protection from a software. [2] Copy protection can be removed by applying a specific crack. A crack can mean any tool that enables breaking software protection, a stolen product key, or guessed password. Cracking software ...
Windows Linux 3D GUI Convergence detector Mesher Algorithm Area of application NEC: open source Yes Yes Yes In some distributions Yes manual MoM: Antenna modeling, especially in Amateur Radio. Widely used as the basis for many GUI-based programs on many platforms. Version 2 is open source, but Versions 3 and 4 are commercially licensed ...
Rigorous testing of the loop Yagi–Uda (quad) antenna show the following advantages over a dipole-based Yagi–Uda antenna made from dipoles: [10] Polarization It is easy to change polarization from vertical to horizontal, by changing the feed point. Multiband antenna It is easier to design a multiband quad antenna than a multiband Yagi antenna.
Software License Operating Systems Features Amateur Contact Log by N3FJP Proprietary Windows Logging, Transceiver control, Callbook lookup, QSL handling (Hardcopy / LoTW / eQSL / Club Log), Awards, DX Spots, Digital Modes
Category for free and open-source software that runs exclusively on the Microsoft Windows family of operating systems. Free and open-source software portal See also: Category:macOS-only free software and Category:Linux-only free software
A Yagi antenna may have a reflector on one side of the driven element, and one or more directors on the other side. If all the elements are in a plane, usually only one reflector is used, because additional ones give little improvement in gain, but sometimes additional reflectors are mounted above and below the plane of the antenna on a ...
When that is complete, the GUI converts the design into the NEC-2 deck file format and runs NEC-2. The GUI then parses NEC-2's output and graphically displays the results. Development of the original NEC codes continued at LLNL, producing NEC-3 which added the ability to model elements buried in or projecting out of the ground, and NEC-4, which ...