Summary

Javascript Version 2025-10-03 by 3G-Aerial,
based on DL6WU.BAS source code
Long-yagi DL6WU

Driven element (dipole) form: Straight
Element shape: Round

Frequency f: 869 MHz
Wavelength λ: 345 mm
Element diameter d: 2 mm
Boom side D: 20 mm

Total number of elements: 8
Boom length: 519 mm
Gain: 12.7 dBi (approx.)

Reflector length R: 168 mm
Reflector position R = 0

Dipole length F: 162 mm
Dipole position F (R-F): 69 mm
Gap at connection point g <= 4.6 mm

Length D1: 150 mm
Director position D1 (R-D1): 94.9 mm
Distance F-D1: 25.9 mm

Length D2: 149 mm
Director position D2 (R-D2): 157 mm
Distance D1-D2: 62.1 mm

Length D3: 147 mm
Director position D3 (R-D3): 231 mm
Distance D2-D3: 74.2 mm

Length D4: 145 mm
Director position D4 (R-D4): 317 mm
Distance D3-D4: 86.2 mm

Length D5: 144 mm
Director position D5 (R-D5): 414 mm
Distance D4-D5: 96.6 mm

Length D6: 142 mm
Director position D6 (R-D6): 517 mm
Distance D5-D6: 103 mm

Elements on a dielectric boom.
Boom-correction is not taken into account.