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5 cze 2021 · Here is a simple antenna calculator for two popular forms of ham radio HF wire antennas: the horizontal dipole and the inverted "V". (Updated June 5, 2021)
Dipole Antenna Calculator. The measurements below are for building a simple Dipole Antenna. The Wire Size can range from 16 AWG to 12 AWG. The larger the wire, the wider the bandwidth. The antenna is designed to be fed with 50 or 75 Ohm Coax Cable of most any length with a Balun.
Ham Radio Wire Antenna Calculator. Full Wave Loops. As I always state you must use a Balun with these wire antennas, especially the Loop as the impedance will not always be as you expect. The feedpoint impedance of a full-wave loop in free space is approximately 100-120 ohms with a gain over a dipole from 1 to 1.5 db gain.
ERP & EIRP Calculator – Calculate effective radiated power from your antenna. Resonant Frequency Calculator – Calculate the resonant frequency of a parallel inductor and capacitor tuned circuit. PI attenuator calculator – Calculate the resistor values for a PI attenuator.
This is a quick way to add an antenna to radio equipment. However, it is not an optimal antenna design and so when it is used with a transmitter or receiver, the radio range performance can vary greatly. To calculate the physical length of a wire antenna. Enter . Upper and Lower Frequencies; Wavelength
24 mar 2021 · LPDA Calculator. Overview. HF wire antenna rendering of a log‑periodic dipole array. Drawing by: Michael McCue, W7YZT ©2017–2018. Detail of the end‑fed feed of a VHF log‑periodic dipole array. The feed coax is routed through the inside of the right boom.
This downloadable calculator will provide you with good starting measurements for a basic ground plane, Inverted V or standard Dipole antenna. The graphics below are "screen shots" taken from it.
