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11 m Band Hentenna centred at 27.500 MHz


The antenna they named it Hentenna. In Japanese hen means strange. Another strange characteristic of the Hentanna is that if it is mounted horizontally
post 05 Feb 2024
11 m Band Hentenna centred at 27.500 MHz

Antenna CB 27 MHz Links

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Antenna doppia zeppelin modificata per 11mt
Abbiamo visto spesso come si possa incrementare il guadagno di un semplice dipolo aumentando la lunghezza del filo ed adattando l'impedenza con uno spezzone di cavo da 75 ohm

Antenna super quad 11mt
L'antenna descritta e una antenna ad elevato guadagno, facile da realizzare e da trasportare, quindi molto adatta per stazioni speciali o portatili

Calculator Antenna quad
Dimension of 2 element cubical quad for 27,25 Mhz

Antena Pulsar
Photo schema antennas

Formule di calcolo per J-pole 1/2λ
Per vhf e uhf e per tutte le altre bande


Take off angle of horizontal antenna

Take off angle of horizontal antenna For horizontal polarization, the electric field will move sideways on a horizontal plane, while for vertical polarization it will oscillate up and down on a vertical plane

A remote antenna switch

A remote antenna switch An abiding dislike for bundles of cables running on the exterior of my house, so a remote antenna switch seemed like a good idea

5 element yagi antenna for 28.5 Mhz

5 element yagi antenna for 28.5 Mhz Gamma match will be made with a 1/2 "aluminum tube and a 75 cm coaxial piece of RG8 without sock and sheath inside the tube