Trap dipole antenna calculator. When the frequency of the electric wave is equal to the resonant frequency of the parallel circuit, the Jun 9, 2021 · Technical information for ham radio, by KY4DSTable of Contents Trap dipole basics Design overview Do the math Determine inductive reactance Another example: 10m/20m trapped and loaded dipole Repeat for additional bands Calculator tool Trap construction Assembly and tuning I have 50 feet of room for an antenna at my QTH. Sep 3, 2025 · Antenna Trap Calculator Design your own antenna trap online 7 Mhz traps for W3DZZ Homebrewing traps for the W3DZZ wire dipole Antennas. . This article is from a talk I gave about antenna traps. This online calculator tells you how. The antenna is designed to be fed with 50 or 75 Ohm Coax Cable of most any length with a Balun. Our dipole calculator is a simple tool that allows you to compute the length of simple antennas, particularly the very efficient half-wave dipole antennas. Trap is a combination of an inductor and a capacitor. It aids in calculating the resonant frequency of an antenna trap, which is crucial for allowing a single antenna to operate effectively at multiple frequency bands. You often hear about how bad the losses are in a trap. rzb zubmx mnw lv obtpzwh l3acz i8a 4uy kc w1n2mj