Here is a new design that utilizes a reflector made from 12 linear
rods. Since there are no gaps to deal with, it I believe that it
should be a bit easier to build. The predicted performance is decent
falling somewhere between my GH8 and GH10 rev2 versions. The net-gain
figures in the following table have been AGT corrected.
The design calls for 7mm (about 1/4") diameter rods, and a zigzag made
from #6 AWG wire. I do not yet have a detailed drawing of it. I will
work on a web-page for it later tonight or tomorrow. In the meantime,
here is the NEC file:
rods. Since there are no gaps to deal with, it I believe that it
should be a bit easier to build. The predicted performance is decent
falling somewhere between my GH8 and GH10 rev2 versions. The net-gain
figures in the following table have been AGT corrected.
Code:
freq[MHz] SWR RawGain NetGain F/B
471.25 1.16007 14.2453 14.2214 6.59
477.25 1.1704 14.3855 14.3587 7.48
483.25 1.16439 14.4658 14.4406 8.36
489.25 1.148 14.5061 14.4854 9.2
495.25 1.12668 14.5165 14.5011 9.97
501.25 1.10532 14.4969 14.486 10.67
507.25 1.0889 14.4773 14.4694 11.29
513.25 1.08241 14.4376 14.4308 11.83
519.25 1.08828 14.398 14.3902 12.29
525.25 1.10422 14.3482 14.3375 12.68
531.25 1.12623 14.2985 14.2831 13.05
537.25 1.15131 14.2586 14.2371 13.43
543.25 1.17739 14.2388 14.2098 13.81
549.25 1.20262 14.2689 14.232 14.1
555.25 1.22604 14.329 14.284 14.12
561.25 1.24836 14.3991 14.3457 13.93
567.25 1.27054 14.4591 14.397 13.68
573.25 1.29284 14.4991 14.4276 13.43
579.25 1.31518 14.539 14.4577 13.22
585.25 1.33745 14.5889 14.4974 13.04
591.25 1.35961 14.6288 14.5267 12.87
597.25 1.38165 14.6886 14.5756 12.72
603.25 1.40365 14.7484 14.6242 12.59
609.25 1.42568 14.8083 14.6724 12.46
615.25 1.44784 14.8881 14.7402 12.35
621.25 1.47029 14.9579 14.7975 12.25
627.25 1.49315 15.0476 14.8743 12.17
633.25 1.51662 15.1274 14.9404 12.09
639.25 1.5409 15.2171 15.0157 12.02
645.25 1.56619 15.3168 15.1001 11.96
651.25 1.59273 15.4065 15.1734 11.88
657.25 1.62077 15.4862 15.2355 11.78
663.25 1.65067 15.546 15.2761 11.67
669.25 1.68281 15.5758 15.2849 11.55
675.25 1.71756 15.5656 15.2517 11.42
681.25 1.75531 15.5155 15.1762 11.28
687.25 1.79649 15.3954 15.028 11.07
693.25 1.84182 15.2055 14.8067 10.8
from #6 AWG wire. I do not yet have a detailed drawing of it. I will
work on a web-page for it later tonight or tomorrow. In the meantime,
here is the NEC file:
Code:
CM hov15-hovzz3-RdipoleN12z2_D7mm_diffevol
CE
GW 1 7 0 -0.0355994 0 0 0.0355994 0 0.00205769
GW 2 25 0 -0.0355994 0 0 -0.196095 0.160496 0.00205769
GW 3 25 0 -0.0355994 0 0 -0.196095 -0.160496 0.00205769
GW 4 25 0 0.0355994 0 0 0.196095 0.160496 0.00205769
GW 5 25 0 0.0355994 0 0 0.196095 -0.160496 0.00205769
GW 6 21 0 -0.196095 0.160496 0 -0.0588342 0.297757 0.00205769
GW 7 21 0 -0.196095 -0.160496 0 -0.0588342 -0.297757 0.00205769
GW 8 21 0 0.196095 0.160496 0 0.0588342 0.297757 0.00205769
GW 9 21 0 0.196095 -0.160496 0 0.0588342 -0.297757 0.00205769
GW 10 19 0 -0.0588342 0.297757 0 -0.183872 0.422795 0.00205769
GW 11 19 0 -0.0588342 -0.297757 0 -0.183872 -0.422795 0.00205769
GW 12 19 0 0.0588342 0.297757 0 0.183872 0.422795 0.00205769
GW 13 19 0 0.0588342 -0.297757 0 0.183872 -0.422795 0.00205769
GW 14 13 0 -0.183872 0.422795 0 -0.307663 0.422795 0.00205769
GW 15 13 0 -0.183872 -0.422795 0 -0.307663 -0.422795 0.00205769
GW 16 13 0 0.183872 0.422795 0 0.307663 0.422795 0.00205769
GW 17 13 0 0.183872 -0.422795 0 0.307663 -0.422795 0.00205769
GW 18 31 -0.0848289 -0.143109 -0.681404 -0.0848289 0.143109 -0.681404 0.0035
GW 19 117 -0.0848289 -0.557066 -0.538873 -0.0848289 0.557066 -0.538873 0.0035
GW 20 81 -0.0848289 -0.381754 -0.417804 -0.0848289 0.381754 -0.417804 0.0035
GW 21 105 -0.0848289 -0.496393 -0.307146 -0.0848289 0.496393 -0.307146 0.0035
GW 22 103 -0.0848289 -0.488764 -0.19585 -0.0848289 0.488764 -0.19585 0.0035
GW 23 31 -0.0848289 -0.147602 -0.0728634 -0.0848289 0.147602 -0.0728634 0.0035
GW 24 31 -0.0848289 -0.147602 0.0728634 -0.0848289 0.147602 0.0728634 0.0035
GW 25 103 -0.0848289 -0.488764 0.19585 -0.0848289 0.488764 0.19585 0.0035
GW 26 105 -0.0848289 -0.496393 0.307146 -0.0848289 0.496393 0.307146 0.0035
GW 27 81 -0.0848289 -0.381754 0.417804 -0.0848289 0.381754 0.417804 0.0035
GW 28 117 -0.0848289 -0.557066 0.538873 -0.0848289 0.557066 0.538873 0.0035
GW 29 31 -0.0848289 -0.143109 0.681404 -0.0848289 0.143109 0.681404 0.0035
GE 0
LD 5 0 0 0 2.49e+07
EK 0
FR 0 6 0 0 475 45
EX 0 1 4 0 1
GN -1 0 0 0 0.0 0.0 0.0 0.0 0.0 0.0
RP 0 1 36 1001 90 0 5.0 10 10000 0
EN