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End-Fed Monobanda
E' consigliato l'uso dei toroidi in polvere di ferro anziche' in ferrite, almeno fino a circa 200-300 watts
post 16 May 2024
Antenna End Fed Links →
20/11/10m.monoband end fed halfwave antenna
The vertical end fed half wave antenna is my choice for it’s easy to employ and it's a perfect DX antenna
Endfed antenna 40m-20m and 10m
This antenna is a 12m long multiband antenna for 40m, 20m and 10m. it has a 1:60 autotransformer with a single ft-140-43 core for 100w pep
A portable multi-band End-Fed Half Wave 40-10m
The antenna a portablemulti-band end-fed half wave EFHW40-10m with a 49:1 Unun
An End Fed Half Wave Antenna writing
As a rough guide, a capacitor of 50pf across a winding of say 30 turns is a starting point for 40m. Some experimenting with turns and tapping point is necessary. The coil former used was about 1/4 inches in diameter as found in old IF transformers
An End Fed Inverted Monoband Vee
An End Fed Inverted Monoband Vee has a low impedance point around 1/4 wave away from ground, and the multiples of 1/4 wave on the feed side
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The vertical end fed half wave antenna is my choice for it’s easy to employ and it's a perfect DX antenna
This antenna is a 12m long multiband antenna for 40m, 20m and 10m. it has a 1:60 autotransformer with a single ft-140-43 core for 100w pep
The antenna a portablemulti-band end-fed half wave EFHW40-10m with a 49:1 Unun
As a rough guide, a capacitor of 50pf across a winding of say 30 turns is a starting point for 40m. Some experimenting with turns and tapping point is necessary. The coil former used was about 1/4 inches in diameter as found in old IF transformers
An End Fed Inverted Monoband Vee has a low impedance point around 1/4 wave away from ground, and the multiples of 1/4 wave on the feed side
Antenna splitter per VHF-UHF per quattro ricevitori Chi dispone di una sola antenna e vuole collegarvi più di un ricevitore necessità di uno splitter
Amateur radio kits by Kanga US
50MHz to 28MHz RX Converter The concept of the rx converter is quite simple and nothing really new. the local oscillator is a standard colpitts crystal oscillator producing the 22mhz lo signal