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160 meter End Fed


With this length of wire a coil of 11 turns is required, resonating the antenna on 1.950MHz with an SWR of 1.5:1. The SWR was adjusted using the tapping point on the coil near the feeder
post 24 Dec 2021
160 meter End Fed


Antenna End Fed Links

64



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

10 m| 12 m| 15 m|
17 m 20 m| 2 m|
23 cm| 30 m| 40 m
6 m| 70 cm| 60 m| 80 m| 160 m| 136 khz| 630 m|
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