• Public Gallery  • Help
		• Join Now!  • Log In  • Feature Tour

holl_ands | Home > Yagi Antennas > Browse:Yagi Comparison ChartsUHF 2-El FD-Yagi - OPTimizedUHF 3-El FD-Yagi - OPTimized UHF 4-El FD-Yagi - OPTimizedUHF 5-El FD-Yagi - OPTimized UHF 5-El FLAT Yagi - CM-4040UHF 6-El FD-Yagi - OPTimizedUHF 6-El Asymmetric Dipole Yagi - WA5VJBUHF 7-El FD-Yagi - OPTimizedUHF 7-El FD-Yagi - Opt. by NikimlUHF 8-El FD-Yagi (2ReflRods) - OPTimizedUHF 8-El FLF-Yagi - 300ohm OPTimizedUHF 12-El FD-Yagi - OPTimizedUHF 13-El FD-Yagi (2ReflRod) - OPTimizedUHF 13-El FD-Yagi (2RR) EqualDirs - OPTUHF 13-El FD-Yagi (2ReflRods) - kgbUHF CM4248 15El FD-Yagi + 14RR CornerUHF 16-El Yagi + 6RR Corner Wade CYD1446UHF 17-El Yagi with 6RR's - tfrlicUHF 18-El FD-Yagi (2ReflRods) - OPTUHF 18-El Yagi from snowman53UHF 25-El FD-Yagi (2ReflRods) - OPTUHF 91XG Corner-FD-YagiUHF 91XG - Wider Corner ReflectorUHF 91XG - Wider Bowties, Better Ch14-51UHF 91XG - Taller Corner ReflectorCh14-17 15El FD-Yagi + 14RR Corner - OPTCh14-17 18El FD-Yagi + 10RR Corner - OPTCh14-17 18El FD-Yagi + 14RR Corner - OPTCh14-17 18El FD-Yagi + 20RR Corner - OPTCh14-19 18El FD-Yagi + 20RR Corner - OPTCh14-19 21El FD-Yagi + 20RR Corner - OPTCh22 9-El FD-Yagi - 300ohm OPTimizedCh22 9-El FLF-Yagi - 300ohm OPTimizedCh22 9-El FD-Yagi - 75ohm MTM ScientificCh22 9-El FD-Yagi - 300ohm K7MEMCh22 11-El FD-Yagi - 300ohm K7MEMCh30 18El FD-Yagi + 14RR CornerCh45-51 12-El FD-Yagi - OPTimizedHi-VHF 3-El FD-Yagi - OPTimizedHi-VHF 3-El One-Lamda LFA-YagiHi-VHF 4-El FD-Yagi - OPTimizedHi-VHF 4-El FLF Yagi - OPTimizedHi-VHF 4-El K7MEM Yagi: Folded vs NotHi-VHF 5-El FD-Yagi - OPTimizedHi-VHF 5-El FLF Yagi - OPTimizedHi-VHF 5-El Yagi Optimized by K6STIHi-VHF 6-El FD-Yagi - OPTimizedHi-VHF 7-El FD-Yagi - OPTimizedHi-VHF 8-El K7MEM Yagi: Folded vs NotHi-VHF 8-El FD-Yagi - OPTimizedHiVHF 9-El FD-Yagi - 1 vs 3 Refl. RodsHiVHF 9-El FD-Yagi, Stellar Labs 30-2475Hi-VHF 10-El FD-Yagi - OPTimizedHi-VHF 10-El FD-Yagi - Lorkoe's AntiqueHi-VHF 12-El FD-Yagi - OPTimizedHi-VHF 12-El FD-Yagi (3ReflRods) - kgbHiVHF 13El FD-Yagi - Stellar Labs 302476Hi-VHF 13-El FD-Yagi (2ReflRods) - kgbHi-VHF 16-El FD-Yagi - OPTimizedHi-VHF 18-El FD-Yagi - OPTimizedHi-VHF 20-El FD-Yagi - OPTimizedHi-VHF 22-El FD-Yagi - OPTimizedCh13 5-El Yagi - OPTimized by nikimlCh13 8-El Yagi - OPTimized by K6STICh13 12-El FD-Yagi - OPTimizedCh12 12-El FD-Yagi - OPTimized Ch6 2-El FD-Yagi - OPTimizedCh6 3-El FD-Yagi - OPTimizedCh7 12-El Yagi from v37bqhCh2-6 Antennacraft Y5-2-6 5-El FD-YagiCh3 4-El FD-Yagi - OPTimizedCh3 5-El FD-Yagi - OPTimizedCh3 6-El FD-Yagi - OPTimized
Ch14-17 18El FD-Yagi + 14RR Corner - OPT Ch14-17 18-Element Folded Dipole Yagi with Corner Reflector (14 Reflector Rods) analyzed using 4nec2. Dimensions (see 4nec2 File) determined using nikiml's Python Optimization Scripts. Boom Length = 111in was intentionally constrained by an non-linear exponential term in the Python Optimization Script's Target Function.  Without this constraint an excessively long 146-in Boom Length provided only another 0.3 dB of Gain (not shown). On Ch14 Raw Gain = 17.2 dBi, F/B & F/R Ratio = 25.0 dB and SWR (300-ohms) under 1.1. Note the small DEGRADATION compared to using only 10 RR for SAME Boom Length & 18-Elements. Note that additional Directors DEGRADED Gain vs Ch14-17 15El FD Yagi + 14RR Corner. Date(s): 7 Oct 2013. Album by holl_ands. 1 - 15 of 15 Total. 4117 Visits.
enlarge 90KB, 803x1024 1 Ch14-17 18El FD-Yagi + 14RR Corner 3D View enlarge 139KB, 522x1024 2 Ch14-17 18El FD-Yagi + 14RR Corner Front View [1 large square = 12.5 inches] enlarge 132KB, 1152x406 3 Ch14-17 18El FD-Yagi + 14RR Corner Top View [1 large square = 12.5 inches] enlarge 229KB, 1024x874 4 Ch14-17 18El FD-Yagi + 14RR Corner Side View [1 large square = 12.5 inches] enlarge 269KB, 870x1024 5 Ch14-17 18El FD-Yagi + 14RR Corner Front View - DETAIL [1 large square = 1.25 inches] enlarge 219KB, 1152x657 6 Ch14-17 18El FD-Yagi + 14RR Corner Top View - DETAIL [1 large square = 5 inches] enlarge 179KB, 1152x686 7 Ch14-17 18El FD-Yagi + 14RR Corner On Ch14 Raw Gain = 17.2 dBi On Ch14 F/B & F/R Ratio = 25.0 dB enlarge 214KB, 1152x686 8 Ch14-17 18El FD-Yagi + 14RR Corner On Ch14 SWR (300-ohms) Under 1.1 enlarge 263KB, 1152x686 9 Ch14-17 18El FD-Yagi + 14RR Corner UHF Impedance enlarge 304KB, 1024x1024 10 Ch14-17 18El FD-Yagi + 14RR Corner Azimuthal Pattern at 470 MHz enlarge 303KB, 1024x1024 11 Ch14-17 18El FD-Yagi + 14RR Corner Azimuthal Pattern at 483 MHz enlarge 303KB, 1024x1024 12 Ch14-17 18El FD-Yagi + 14RR Corner Azimuthal Pattern at 494 MHz enlarge 243KB, 862x1024 13 Ch14-17 18El FD-Yagi + 14RR Corner Side View - DETAIL [1 large square = 2.5 inches] enlarge 36KB, 791x1024 14 Ch14-17 18El FD-Yagi + 14RR Corner 4nec2 File enlarge 22KB, 791x1024 15 Ch14-17 18El FD-Yagi + 14RR Corner Contents of Python Control *.bat text File
Select All.
Sign the Guestbook. There are no entries.