_CT1 GYD_ |
ANTENA DIRECTIVA YAGI 5 ELEMENTS |
Baseada no artigo 'Extremely Long Yagi Antennas' by Gunter Hoch, DL6WU, 3/82
Center frequency: 145.350 Mhz
Gain: 7 a 9 dbd
Drive impedance: aprox. 200 Ohm with folded dipole (D.E.)
Boom lenght: 1,5 m
Boom diameter: 1.9 cm (perfil quadrado)
Elements diameter: 8 mm
The elements pass through and are not insulated the metal boom.
Comulative spacing Ref. 44.58 cm 61.38 cm 95.59 cm 139.98 cm |
REFL. D.E. D 1 D 2 D 3 |
Antenna |
Element length 99.51 cm 97.34 cm 92.53 cm 91.66 cm 90.70 cm |