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HF End Fed Half Wave


The EFHW monoband matching unit allows for a half wavelength of wire tobe connected, giving a 50 Ohm impedance
post 12 Apr 2026
HF End Fed Half Wave

Antenna End Fed Links

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EFHWA tuner
Un tipo un balun 1:7 oppure 1:8 per fronteggiare gli ohm presenti ai vertici della nostra antenna, quindi 3 giri di avvolgimento primario e 21 o 22 di secondario andranno bene. per quanto riguarda il ROS non salgo mai sopra 1.6-1.8

Endfed per 17-20-30-40 metri
Una veloce multibanda E.F.W.H.A. dedicata ai piccoli quadri banda come il mio FT857D

End fed 1/2 wave matching system end feed
End-fed antennas are increasingly popular again, at least partly because of compact iron toroid cores. Small soft-iron cores allow compact, easy-to-build, low-power transformers and networks

End fed antenna lambda/2
Un trasformatore 1:64 su cui e' collegato un filo lungo lambda/2 della frequenza prescelta. una versione a 3 o 5 bande in modo da avere maggiori chance su piu' frequenze. Un filo di rame teso ha un'impedenza superiore ai 3.3 K ohm e quindi per poter adattare l'impedenza ai 50 ohm della radio, con un toroide FT240-43 - 1:64

An EFHW antenna for 160-10m band
An efhw as inverted-l from the feedpoint at the edge of property, about 10m upwards into the direction roof ridge

End Fed Half Wave Antenna Coupler
A 40m through 17m Mini End Fed Half Wave Antenna Coupler


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