Winegard HD6065P

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 9.59 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.

Modeling Notes

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, shunt capacitor, and dual-core ferrite balun. I removed the feedpoint box and measured the 75Ω return loss as > 40 dB at 98 MHz (> 25 dB over 88108 MHz) with 130Ω and 9.3 pF across the feeder terminals. To obtain unity SWR at this antenna impedance, I added 283.6 nH, which resonates with 9.3 pF at 98 MHz, across the model feedpoint and set the SWR reference impedance to 130Ω.

The phasing lines surround a 1″-square boom. The upper and lower lines are not equidistant from it. This may alter their currents and induce current in the boom.

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.

Modeling Results

Calculated performance is for 28 analysis segments per conductor 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     128 + j140   2.81     1.11      0.04      6.45     17.19
    89     142 + j102   2.09     0.58      0.04      7.08     17.59
    90     137 + j77    1.76     0.35      0.03      7.46     18.21
    91     124 + j61    1.62     0.25      0.03      7.65     18.82
    92     110 + j56    1.64     0.26      0.03      7.72     19.49
    93    99.5 + j57.5  1.76     0.34      0.03      7.73     20.21
    94    93.8 + j61.6  1.89     0.43      0.02      7.73     20.94
    95    92.1 + j66.4  1.98     0.50      0.02      7.76     21.64
    96    95.1 + j71.0  2.01     0.52      0.02      7.83     22.32
    97     100 + j73    1.97     0.49      0.02      7.96     22.67
    98     108 + j71    1.85     0.41      0.02      8.15     22.87
    99     117 + j64    1.69     0.30      0.02      8.36     22.63
   100     121 + j51    1.51     0.18      0.02      8.57     22.09
   101     119 + j35    1.34     0.09      0.03      8.73     21.35
   102     104 + j22    1.34     0.09      0.04      8.71     20.21
   103     100 + j21    1.37     0.11      0.03      8.76     19.84
   104    85.3 + j18.6  1.58     0.22      0.03      8.68     19.30
   105    75.9 + j23.7  1.80     0.37      0.03      8.46     18.88
   106    72.7 + j31.5  1.94     0.47      0.04      8.19     18.74
   107    77.9 + j39.0  1.89     0.43      0.04      7.90     18.93
   108    98.2 + j37.5  1.54     0.20      0.06      7.58     19.70

Antenna File

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 283.6 nH		; matching network

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 130Ω.

December 2, 201488108 MHz