Antena Yagi UHF

this video is how to make a yagi uhf antenna, with a frequency range of 435mhz.

for size
*Reflector 35.3cm
*driven 34.3cm
*driver 1 32.2cm
*driver 2 31.8cm
*driver 3 31.4cm
*driver to driver & driven distance 10.3cm.
*Distance driven to Reflector 17.2cm. *Length of gamma match 10cm.
*Distance gamma to driven 2.5cm. *Boom length 50cm.

for the formula
*Lamda = 300/Freq Lambda =300/435 =68.9
*Driven=1/2 x Lambda Driven=1/2 x 68.9 =34.3
*Reflector=1.03 x Driven Reflector=1.03x34.3=35.3 *D1=0.94xDriven D1=0.94x34.3=32.2 *D2=0.99xD1 D2=0.99x32.2=31.8 *D3=0.99xD2 D3=0.99x31.8=31.4 *Reflector to Dipole (0.25xLamda) 0.25x68.9=17.2cm
*Dipole to Driven (0.15xLamda) 0.15x68.9=10.3cm

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