WebDescription. This is 1:49 RF impedance Transformer designed for matching EFHW (End Fed Half Wave) antenna to 50 OHm. The transformer is made of high quality components – 2pcs of Amidon FT240-43 core and military grade AWG 14 PTFE wire. The efficiency is about 98%. You will get.
49:1 EFHW Antenna Kit KM4ACK
WebGet notified when the kit is back in stockKit includes everything you need to build a 49:1 end fed half wave antenna. Antenna works without needing a tuner on 10M, 15M, 20M & 40M with SWR ≤ 2:1 Easy to build! Just wind the toroid, solder a few joints, connect the wire, and you are on the air. There's also an easy to follow assembly video. WebIt’s a great antenna to fling out of a window for a low profile ham station. It’s often easier to get the main radiating part of the antenna (the centre of the half-wave) higher than it … richard bray gilford nh
EFHW LNR Precision EF-10/20/40MKII Examination - Ham Radio
WebThe hex beam has become a wildly popular antenna. It is a directional antenna that provides great performance and does not require a full scale, expensive tower. It allows the average amateur to compete with the big boys for DX and without spending your retirement to … WebAntenna modeling suggests that the impedance is closer to 1800 ohms depending on the "counterpoise" length used. As the "counterpoise" itself approaches a half wavelength, the impedance approaches 5000 ohms. In the graph below I have plotted what MININEC predicts for the impedance of an end fed half wave antenna versus the "counterpoise" … WebEFHW-8010-2K-Plus, 2000W Multi-Band End Fed Half Wave Antenna. Improved version of the EFHW-8010-2K, now with three large cores, 2.9-inch diameter, featuring just 0.5 dB Insertion loss 3-30MHz! This is an End-Fed Half-Wave (EFHW*) antenna for 80/40/30/20/17/15/12 and 10m bands. Unlike many END FED antennas on the market, … richard bray naperville i’ll