


HamCalc is a free collection of calculators for radio amateurs include Antenna ERP calculations,Īttenuators, Audio Filter design, Coil Winding,ĭecibels, Great Circles map and calculator, HF Filters, HF Traps, Metric conversions OP Amps

Design your vhf yagi antenna online, a JavaScript enhanced web page that implements the design of an antenna in the VHF, UHF by K7MEMĬubical quad antenna calculator in java script let you calculate elements size and spacing in inch and meters.Įnter the operating frequency and calculate dimensions of your jpole antennaĪntenna Analysis software with the user in mind.Ĥnec2 is a completely free Nec2, Nec4 and windows based tool for creating, viewing, optimizing and checking 2D and 3D style antenna geometry structures and generate, display and/or compare near/far-field radiation patterns for both the starting and experienced antenna modeler.Ĭan be interfaced to HFwin32 propagation prediction software.
