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Using an analyzer, tune your anten-na by lengthening or shortening the long wire. When you’ve reached an acceptable SWR bandwidth for 80, 40, 20, 15, and 10 meters, perma-nently secure the end of the wire around the dogbone insulator. Once I tuned the antenna in these photos, the entire length ended up being about 131 feet.
13 lip 2023 · I show you how to make an End Feed Half Wave (EFHW) on bands 10 - 40. I will go over cutting and tuning the antenna for each wave. Then we will put...
Antenna Analyzer - I prefer the Rigexpert for the quality and precision, but you can also use a NanoVNA or an MFJ Analyzer which will be cheaper in cost.
3 dni temu · NOV. 10: CONSTRUCTING A COMMON MODE CHOKE. On November 10, I built the final component of my new EFHW antenna, a Common Mode Choke, or CMC. It is highly recommended that a choke be used with an end-fed antenna to prevent the shield of the coax feedline from becoming part of the antenna system and radiating RF unintentionally.
6 maj 2020 · This is a reading from my RigExpert AA-35 ZOOM of my EFHW 40-10 inverted L with radials, and feedpoint 2 feet above the ground. Any thoughts as to how I can tune or move this antenna to get the lowest SWR in the 40, 20 and 15 meter bands? Thanks.
31 sty 2024 · 01. AA-35 Zoom HF Antenna Analyzer by Rig Expert. Check Recent Price. Features. Defines and measures the coaxial stubs. Processes cable loss with distinctive impedance. Facilitates cable assessment. Recognizes the fault location. A frequency range of 0.06-35 MHz. UHF connector type.
18 sie 2022 · This linked endfed halfwave antenna with a 64:1 unun is an interesting antenna build that has the distinct advantage of being multi-banded for the higher HF frequencies, including 17M, 15M, 12M, and 10M.
