Search results
14 sie 2024 · The following steps outline how to calculate the length of an Efhw Antenna using the formula: L = 468 / f. First, determine the frequency (f) in MHz. Next, use the formula L = 468 / f to calculate the length of the antenna (L) in feet.
Learn how to build and use an End-Fed Half-Wave (EFHW) dipole antenna for HF bands. Find out the components, theory, and performance of this popular and versatile antenna type.
19 sty 2017 · I want to use an end-fed wire antenna, but what would be the best length of wire for the 20m and 40m bands? Is there a way to work this out? This is assuming a tuner will be used.
Learn how to construct a 4-band end fed half wave (EFHW) antenna for 10, 15, 20, and 40 meters. Find the kit, parts, tools, instructions, and videos for this DIY project.
Learn how to install and optimize EFHW antennas for amateur radio. Find out about EFHW history, UNUN transformers, radiation patterns, power limits and more.
3 paź 2024 · To determine the ideal length of an EFHW antenna for a specific operating frequency, you can use the formula: \ [ \text {Antenna Length (m)} = \frac {468} {\text {Frequency (MHz)}} \] This formula gives the approximate total length in meters of the half-wave wire antenna.
Learn how the end-fed half-wave antenna (EFHW) works and how to build one. The web page explains the impedance transformation, the Zepp antenna, and the voltage balun methods with diagrams and examples.
