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Antenna HALO


Halos are customarily operated with the plane of the loop oriented horizontally, parallel to the ground, whereas small-loop antennas often are oriented vertically
post 18 Dec 2021
Antenna HALO


Antenna for UHF VHF Links

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VHF-UHF Yagi Antenna Feed Design
Balanced feed line are readily available in various impedances 75/300/450 ohms, but the use of a balanced feedline presents some physical requirements that are not easy to get around

Yagi 7 el. Per 70 cm. Ecologica
La lunghezza totale del boom e' di circa 1m. poiche' dietro al riflettore e' previsto il fissaggio al mast. La sezione e' 1 x 2 cm

Yagi 9 elements
The first director can be moved forward or backward to search for the best ROS

6-Element yagi for 144 MHz
The design has been performed using yagimax2 software and practical tests. I created several prototypes before I found out the correct measurement

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