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uhfdirectionalbeam

70cm Yagi

Yagi for 70cm band (432 MHz)

Source: Rothammel, Vol. 2, Ch. 23.3.4, p. 69
Input Parameters
MHz
#
mm
Results
Reflector Length
326.6mm
Driven Element Length
312.0mm
First Director Length
296.2mm
Last Director Length
282.4mm
Boom Length
1403mm
Gain
7.2dBd
Beamwidth
46°
Feed Impedance
25Ω
Diagram
326.56 mR312.05 mDE296.22 mD1282.36 mD2273.89 mD3boom: 1402.78 m
Radiation Pattern
-3 dB-10 dB-20 dB0 dB0°90°180°270°Max: 11.6 dBiF/B: 15.2 dB