Box for Heltec v4 + YAGI 5 el

Yagi Calculator DESIGN DATA FOR YOUR YAGI https://www.changpuak.ch/electronics/yagi_uda_antenna_DL6WU.php Javascript Version 12.01.2014, based on Rothammel / DL6WU Frequency : 869.025 MHz, (useful from 851.6445 to 886.4055) Wavelength : 345 mm Rod Diameter : 3 mm Boom Diameter : 7 mm Boom Length : 251 mm d/lambda : 0.009 ( min.: 0.002 , max.: 0.01 ) D/lambda : 0.020 ( min.: 0.01 , max.: 0.05 ) Elements : 5 Gain : 7.99 dBd (approx.) Reflector Length : 166 mm Reflector Position : 0 mm Dipole Position : 83 mm 82.6-1.7-82.6 Director #1 Position : 109 mm , Length : 157 mm Distance Dipole - Dir. #1 : 26 mm Director #2 Position : 171 mm , Length : 155 mm Distance Dir. #1 - Dir. #2 : 62 mm Director #3 Position : 245 mm , Length : 154 mm Distance Dir. #2 - Dir. #3 : 74 mm Directors / Parasitics are isolated. Please choose an isolater thicker than : 4 mm