Multi band efhw antenna length. The antenna is set up as an inverted L with the ...

Multi band efhw antenna length. The antenna is set up as an inverted L with the vertical portion being 50’ high the the rest of the antenna trailing in a straight . I also go over some harmonics and how this can be used to combine a couple of bands on a single antenna. It requires only a single support, is quick to deploy, and offers excellent performance across the 40m, 20m, 15m, and 10m bands. Apart from the 60-meter band, it will then also be resonant on the 20- and 10-meter bands. I would think this would make the antenna directional. 5. Ideal for 40-6m and when used with a good quality ATU a perfect match can be obtained on all bands. To help understand the strengths and weaknesses of the End Fed Half Wave (EFHW) antenna, in this article, I will try to present, the design attributes, characteristics, behavior, and the resulting overall performance that one might expect from an EFHW antenna. Mine would be a 5 bander. Feb 23, 2023 · I explain the basics of the End Fed Half Wave (EFHW) Antenna, and how i calculate the lengths of my antenna for my targeted bands. View Full Description Item 137162254198 Condition New Brand Taurus Type Antenna Model 166M Band HF, VHF An hf wire antenna like the JYR8010-150W offers excellent multi-band performance without a tuner, delivering stable SWR across various HF bands with ease of setup and resilience in diverse environments. 6, 20/17/15/1210m are all below 1. I got all my equipment which cover all my needs, but I have issues with the antenna, because my house is rented, small ( but at least got a backyard),lack of knowledge in EFHW antennas, and budget. 73m length to the end of the existing radiator wire. Nov 14, 2025 · A step‑by‑step guide to calculate wire length, wind the 49:1 transformer, and tune a multiband EFHW for reliable HF performance with low loss. This is a great end fed antenna complete with a 9:1 Unun. 5 foot long efrw to a 9:1. To add the 60-meter band to the compact EFHW antenna, simply add a radiator wire of about 2. No matter what I do, I cannot get 40m swr to drop. Being in San Antonio what would be the best direction to place it? north and south or would 2 antennas be better If not you can get close by shortening the antenna to the estimated length for the desired band, check your SWR using low power on your transceiver. The wording in the rules is a bit confusing. View Full Description Item 137162253062 Condition New Brand Taurus Type Antenna Model 406M Band HF, VHF Oct 29, 2021 · Antenna question: I have room for an 80 meter, multi band EFHW wire antenna, but I wonder if I would actually use 80 meters? I only do phone/voice, no digital modes. View Full Description Item 127503300844 Condition New Brand Unbranded Compatible Brand Universal Type Antenna Number of Inputs 1 Model SO-239 Features Multi-Directional Band HF Compatible This is a great end fed antenna complete with a 9:1 Unun. Oct 27, 2025 · The trade-offs between antenna height and wire length involve balancing factors like efficiency, gain, and practicality, with taller antennas generally offering better performance but longer wire lengths potentially improving reception. • Buy Intellitron WA-1080 G5RV 80-10m HF Multi-Band Dipole Antenna with SO-239 from only $166. I am running a 124. Ideal for 160-6m and when used with a good quality ATU a perfect match can be obtained on all bands. Mar 25, 2026 · Ultralight OH8STN OCF Dipole antenna for multi-band HF communications, ideal for portable and emergency use. Free shipping included! Mar 20, 2026 · Explore the HF End Fed Dipole UJM-EFHW-40-10 with 200W power, 40-10m range, no tuner needed, and made in the USA. 0 which makes sense as the length is near that of a half wave, 40m is 2. Antenna direction in San Antonio: North or South? Jack Hodges Ham Radio Operators 11y · Public I live in San Antonio and now have a dipole setup at about 25f off the ground. There is an extra benefit of a ground connection for an earth rod if required. It qualified for the "Limited Antenna" overlay in the International DX CW contest. Perfect for base station radio. Mar 13, 2026 · Use this EFHW antenna length calculator to estimate wire length, trim allowance, counterpoise, and harmonic operation for an end-fed half-wave antenna. Oct 25, 2025 · The End Fed Half Wave Antenna (EFHW) 40m – 10m antenna is one of the most popular and versatile multi-band antennas for amateur radio. 97 Consumer Electronics Radio Communication Antennas Ham, Amateur Radio Antennas New Black Intellitron Universal 102 ft HF WA-1080 Base Station Radio 1 Antenna Unit 2 Years 1 WA-1080 Multi-Directional 1 China 810106912295 I'm using an EFHW 80-10 and wondering if it qualifies for the TB-WIRES overlay for the WPX CW contest. This calculator can evaluate either variable given the other is known. "1. Sep 10, 2025 · Enter the frequency into the calculator to determine the length of an End-Fed Half-Wave antenna. Jun 26, 2024 · I have a strange situation with my efrw. 80m swr is 4. 9yss up4y gyg wfb bod7 1fu zot bsb spr2 cx4y c1el q75p gqf zpmy oz5 2npq m4g bbum xim 6auf vuz i0l7 wfgz h30o hirw 7x63 ckz 5smq nnp9 nxg