The Winegard HD6065P is a Log-Yagi array with ten elements on a 127″ boom. Four of the elements are driven. A shorted transmission line terminates at a passive reflector.
Winegard discontinued the HD6065P and replaced it with the HD6055P, an eight-element design on an 82″ boom.
I modeled the antenna with the AO 9.50 Antenna Optimizer program. This image shows the antenna geometry.
This shows segmentation detail for the phasing lines and feedpoint. Blue dots mark analysis segments. The red dot is the feedpoint. The lower phasing lines connect to rivets at the underside of the driven-element insulators, while the upper lines connect directly to the elements on top. The rivets electrically lengthen each lower line by 2″. This causes some pattern asymmetry visible in the plots below.
The antenna has a plastic feedpoint box that snaps onto parallel feeders. The box contains an F-connector and a printed-circuit matching network consisting of thick and thin PCB traces, a shunt capacitor, and a 1:1 dual-core ferrite balun. I removed the feedpoint box and measured > 40 dB of return loss in a 75Ω system at 98.5 MHz with 82.1Ω in series with 23.6 pF across the feeder terminals. Therefore at midband the box matches 82.1 − j68.5 Ω to 75Ω. To make SWR unity for a reference impedance of 82.1Ω, the model includes a +68.5Ω series reactance at the feedpoint.
The phasing lines surround a 1″-square boom. The upper and lower lines are not equidistant from it, which may induce boom current. The following results are for no boom, while later graphs show results from a simple boom model.
The driven elements mount to plastic center insulators with metallic locking flanges. The slits on each side inhibit current over most of the flange length so I did not model them.
Calculated performance figures are for 50 analysis segments per halfwave. Forward gain includes mismatch and conductor losses. F/R is the ratio of forward power to that of the worst backlobe in the rear half-plane.
Frequency Impedance SWR Mismatch Conductor Forward F/R
MHz ohms Loss dB Loss dB Gain dBd dB
88 158 - j46 2.14 0.61 0.07 6.64 15.58
89 145 - j22 1.83 0.39 0.03 7.33 17.86
90 131 - j1 1.60 0.24 0.03 7.59 18.51
91 125 + j17 1.57 0.22 0.03 7.69 19.14
92 124 + j33 1.69 0.29 0.03 7.70 19.83
93 128 + j44 1.84 0.40 0.03 7.68 20.58
94 134 + j51 1.98 0.50 0.02 7.68 21.32
95 141 + j53 2.06 0.56 0.02 7.72 21.96
96 147 + j50 2.07 0.56 0.02 7.81 22.49
97 149 + j40 2.00 0.51 0.02 7.96 22.82
98 144 + j30 1.87 0.42 0.02 8.16 22.79
99 133 + j23 1.70 0.30 0.02 8.37 22.39
100 118 + j20 1.52 0.19 0.02 8.58 21.73
101 102 + j25 1.42 0.13 0.03 8.69 20.85
102 101 + j30 1.48 0.17 0.05 8.51 19.77
103 85.7 + j39.8 1.60 0.24 0.03 8.66 19.52
104 80.9 + j51.6 1.86 0.41 0.03 8.46 18.96
105 81.8 + j62.3 2.10 0.59 0.04 8.17 18.63
106 89.6 + j68.8 2.20 0.66 0.04 7.85 18.59
107 103 + j63 2.02 0.52 0.05 7.56 19.02
108 98.7 + j28.1 1.43 0.14 0.07 7.24 20.15
The unequal distances of the upper and lower phasing lines from the boom can induce current in it. I modeled the 1″ × 1″ square boom as a 1.18″ round conductor at the boom axis. It connects to the uninsulated parasitic elements. This model may not be entirely realistic. The phasing lines may be closer to the boom surface than the algorithm can properly account for. The secondary boom and mast, neither modeled, will alter the boom current. Despite these limitations, the model at least should give a qualitative idea of boom effects.
Winegard HD6065P Free Space 98.000 MHz 115 6063-T832 wires, inches v = .11 ; feeder wire diameter p = .2226 ; phasing line equivalent diameter (.375" x .04") d = .1875 ; rivet diameter w = 1 ; rivet length r = 1.375 ; rivet spacing / 2 s = r - .5 ; phasing line inward bend t = .875 ; phasing line vertical bend y = w + t ; lower phasing line midsection h = w + .5 ; reflector shorting strap b = 1.1 ; equivalent diameter at mounting brackets 1 45 -1 -1 45 1 -1 v ; feedpoint 1 42 r 0 43.5 r 0 v 1 43.5 r 0 43.625 1 -1 v 1 43.625 1 -1 45 1 -1 v 1 42 -r 0 43.5 -r 0 v 1 43.5 -r 0 43.625 -1 -1 v 1 43.625 -1 -1 45 -1 -1 v 1 0 r 0 0 35.875 0 .375 1 0 -r 0 0 -35.875 0 .375 1 10.5 r 0 10.5 33.375 0 .375 1 10.5 -r 0 10.5 -33.375 0 .375 1 21 r 0 21 28.375 0 .375 1 21 -r 0 21 -28.375 0 .375 1 31.5 r 0 31.5 26.125 0 .375 1 31.5 -r 0 31.5 -26.125 0 .375 1 42 r 0 42 24.125 0 .375 1 42 -r 0 42 -24.125 0 .375 1 50.5 -25.5 0 50.5 -2.5 0 .375 1 50.5 -2.5 0 50.5 2.5 0 b 1 50.5 2.5 0 50.5 25.5 0 .375 1 63.5 -25.5 0 63.5 -2.5 0 .375 1 63.5 -2.5 0 63.5 2.5 0 b 1 63.5 2.5 0 63.5 25.5 0 .375 1 80.5 -25.5 0 80.5 -2.5 0 .375 1 80.5 -2.5 0 80.5 2.5 0 b 1 80.5 2.5 0 80.5 25.5 0 .375 1 102 -25.5 0 102 -2.5 0 .375 1 102 -2.5 0 102 2.5 0 b 1 102 2.5 0 102 25.5 0 .375 1 125 -23.5 0 125 -2.5 0 .375 1 125 -2.5 0 125 2.5 0 b 1 125 2.5 0 125 23.5 0 .375 1 0 r -w 0 0 -h p ; reflector shorting strap 1 0 0 -h 0 -r -w p 1 0 r 0 0 r -w d ; rivet 1 0 r 0 1.875 r 0 p ; top phasing line 1 1.875 r 0 2 s 0 p 1 2 s 0 2.125 s t p 1 2.125 s t 2.5 0 t p 1 2.5 0 t 8 0 t p 1 8 0 t 8.25 -s t p 1 8.25 -s t 8.375 -s 0 p 1 8.375 -s 0 8.5 -r 0 p 1 8.5 -r 0 10.5 -r 0 p 1 0 -r 0 0 -r -w d ; rivet 1 0 -r -w 1.875 -r -w p ; bottom phasing line 1 1.875 -r -w 2 -s -w p 1 2 -s -w 2.125 -s -y p 1 2.125 -s -y 2.5 0 -y p 1 2.5 0 -y 8 0 -y p 1 8 0 -y 8.25 s -y p 1 8.25 s -y 8.375 s -w p 1 8.375 s -w 8.5 r -w p 1 8.5 r -w 10.5 r -w p 1 10.5 r -w 10.5 r 0 d ; rivet shift x 10.5 1 0 r 0 1.875 r 0 p ; top phasing line 1 1.875 r 0 2 s 0 p 1 2 s 0 2.125 s t p 1 2.125 s t 2.5 0 t p 1 2.5 0 t 8 0 t p 1 8 0 t 8.25 -s t p 1 8.25 -s t 8.375 -s 0 p 1 8.375 -s 0 8.5 -r 0 p 1 8.5 -r 0 10.5 -r 0 p 1 0 -r 0 0 -r -w d ; rivet 1 0 -r -w 1.875 -r -w p ; bottom phasing line 1 1.875 -r -w 2 -s -w p 1 2 -s -w 2.125 -s -y p 1 2.125 -s -y 2.5 0 -y p 1 2.5 0 -y 8 0 -y p 1 8 0 -y 8.25 s -y p 1 8.25 s -y 8.375 s -w p 1 8.375 s -w 8.5 r -w p 1 8.5 r -w 10.5 r -w p 1 10.5 r -w 10.5 r 0 d ; rivet shift x 21 1 0 r 0 1.875 r 0 p ; top phasing line 1 1.875 r 0 2 s 0 p 1 2 s 0 2.125 s t p 1 2.125 s t 2.5 0 t p 1 2.5 0 t 8 0 t p 1 8 0 t 8.25 -s t p 1 8.25 -s t 8.375 -s 0 p 1 8.375 -s 0 8.5 -r 0 p 1 8.5 -r 0 10.5 -r 0 p 1 0 -r 0 0 -r -w d ; rivet 1 0 -r -w 1.875 -r -w p ; bottom phasing line 1 1.875 -r -w 2 -s -w p 1 2 -s -w 2.125 -s -y p 1 2.125 -s -y 2.5 0 -y p 1 2.5 0 -y 8 0 -y p 1 8 0 -y 8.25 s -y p 1 8.25 s -y 8.375 s -w p 1 8.375 s -w 8.5 r -w p 1 8.5 r -w 10.5 r -w p 1 10.5 r -w 10.5 r 0 d ; rivet shift x 31.5 1 0 r 0 1.875 r 0 p ; top phasing line 1 1.875 r 0 2 s 0 p 1 2 s 0 2.125 s t p 1 2.125 s t 2.5 0 t p 1 2.5 0 t 8 0 t p 1 8 0 t 8.25 -s t p 1 8.25 -s t 8.375 -s 0 p 1 8.375 -s 0 8.5 -r 0 p 1 8.5 -r 0 10.5 -r 0 p 1 0 -r 0 0 -r -w d ; rivet 1 0 -r -w 1.875 -r -w p ; bottom phasing line 1 1.875 -r -w 2 -s -w p 1 2 -s -w 2.125 -s -y p 1 2.125 -s -y 2.5 0 -y p 1 2.5 0 -y 8 0 -y p 1 8 0 -y 8.25 s -y p 1 8.25 s -y 8.375 s -w p 1 8.375 s -w 8.5 r -w p 1 8.5 r -w 10.5 r -w p 1 10.5 r -w 10.5 r 0 d ; rivet 1 source Wire 1, center 1 load Impedance load Wire 1, center 0 68.5 Mounting brackets: 5" x 1.5" x 0.5" x .05" U-channels, 0.5" reinforcement sheaths. Bracket equivalent diameter calculated with YO 7.70. Phasing line equivalent diameter calculated with W9CF formula. Driven element locking flanges not modeled. Set SWR reference impedance to 82.1 Ω.
88–108 MHz