10 elements Yagi-Uda antennaAntenna description: 10 elements Yagi-Uda design for VHF spectrum; Boom length 2.8667 Wavelength; i.e. 5.96m@144.2MHz; Front/Rear ratio >= 23dB both E/H plane; Gain >= 15.5 dBi; i.e. >= 13.4 dBd; Impedance = 50.0 Ohm +/- j0.0 Ohm; (need 1:1 balun with 180° phase shifter); Bandwidth >= 0.2% (i.e. 300KHz@144.2MHz) SWR <= 1.16 : 1 elements by aluminum tube T6060 Warning: this is not a tested antenna, for home brewing select your own design then cut-try and measure. dimension in wavelength: full elements, in wavelengths: pos./diam. 0.0077 Ref 0.0000 0.4820 DE 0.1193 0.4620 D1 0.2059 0.4458 D2 0.4781 0.4328 D3 0.8586 0.4224 D4 1.2592 0.4166 D5 1.6753 0.4136 D6 2.1000 0.4142 D7 2.5045 0.4146 D8 2.8667 0.4102 dimension in mks (example @ 144.2 MHz): full elements, in centimeters: pos./diam. 1.6000 Ref 0.0000 100.2000 DE 24.8000 96.0400 D1 42.8000 92.7000 D2 99.4000 90.0000 D3 178.5000 87.8000 D4 261.8000 86.6000 D5 348.3000 86.0000 D6 436.6000 86.1000 D7 520.7000 86.2000 D8 596.0000 85.3000 [ index page ] [ basics 1 ] [ basics 2 ] [ measure ] [ acronym and definitions ] [ sample/repository: ] [ 3 elements Yagi-Uda ] [ 4 elements Yagi-Uda ] [ 5 elements Yagi-Uda ] [ 6 elements Yagi-Uda ] [ 7 elements Yagi-Uda ] [ 8 elements Yagi-Uda ] [ 9 elements Yagi-Uda ] [ 10 elements Yagi-Uda ] [ 11 elements Yagi-Uda ] [ Coaxial Balun ] [ Link to us; Free code ] [ Terms of use; Disclaimer; Privacy policy ] [ site map; contents ]
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