Gray-Hoverman 2020 Repack Editions (CH7 to CH36)

hamiltonOTA2.0 · 2022-10-29T18:47:07-0400

With nikiml's site no longer up and not having frequented the forum for a while I've re-optimized his Non-Modular UHF/VHF-Hi models for the new 7-36 repacked frequencies. I also added a new *n5 variant for bit of a boost on VHF as the newer *n3 models dip a bit below compared to the original 7-51s. It gives a little bonus to UHF as well.

GH0n0 48" height, 10.8db avg UHF, 6.2db avg VHF, 194" length of 1/4" Aluminum
GH2n3 46" height, 14.1db avg UHF, 9.0db avg VHF, 339" length of 1/4" Aluminum
GH4n3 47" height, 14.5db avg UHF, 9.6db avg VHF, 446" length of 1/4" Aluminum
GH6n3 48" height, 14.8db avg UHF, 9.7db avg VHF, 507" length of 1/4" Aluminum
GH8n3 58" height, 15.2db avg UHF, 9.6db avg VHF, 531" length of 1/4" Aluminum
GH10n3 60" height, 15.4db avg UHF, 9.8db avg VHF, 598" length of 1/4" Aluminum

GH6n5 49" height, 15.0db avg UHF, 10.1db avg VHF, 594" length of 1/4" Aluminum
GH8n5 59" height, 15.4db avg UHF, 10.0db avg VHF, 643" length of 1/4" Aluminum
GH10n5 62" height, 15.7db avg UHF, 10.1db avg VHF, 700" length of 1/4" Aluminum

hamiltonOTA2.0 · 2022-10-29T18:50:53-0400

GH0n0

GH0n0 model viewer

Code:

         --- Gain ---              -- Ratios -- -- Impedance --           
   Freq    Raw    Net   SWR BeamW    F/R    F/B    Real    Imag  AGT  corr
==========================================================================
  174.0   6.89   5.66  2.97  84.0   0.00   0.00  138.76 -168.44 1.02  0.07
  180.0   6.95   6.37  2.10  83.3   0.00   0.00  150.26  -58.85 1.02  0.07
  186.0   7.02   6.71  1.72  82.4   0.00   0.00  178.62   35.38 1.02  0.07
  192.0   7.09   6.80  1.69  81.4   0.00   0.00  234.63  124.15 1.02  0.07
  198.0   7.12   6.69  1.88  80.2   0.00   0.00  346.44  202.20 1.02  0.07
  204.0   7.06   6.42  2.18  78.8   0.00   0.00  560.44  198.38 1.02  0.07
  210.0   6.81   5.94  2.49  77.3   0.00   0.00  734.31  -90.23 1.02  0.07
  216.0   6.27   5.20  2.75  75.2   0.00   0.00  502.24 -356.34 1.02  0.07
  470.0  10.30   9.62  2.23  47.6   0.00   0.00  173.94  139.75 1.02  0.07
  476.0  10.46   9.77  2.25  47.0   0.00   0.00  187.28  161.71 1.02  0.07
  482.0  10.60   9.90  2.26  46.3   0.00   0.00  203.91  183.51 1.02  0.07
  488.0  10.72  10.02  2.27  45.6   0.00   0.00  224.38  204.73 1.02  0.07
  494.0  10.82  10.11  2.27  44.9   0.00   0.00  249.30  224.75 1.02  0.07
  500.0  10.91  10.21  2.27  44.2   0.00   0.00  279.33  242.61 1.02  0.07
  506.0  10.99  10.29  2.26  43.5   0.00   0.00  315.08  256.88 1.02  0.07
  512.0  11.07  10.38  2.24  42.8   0.00   0.00  356.92  265.46 1.02  0.07
  518.0  11.15  10.48  2.22  42.0   0.00   0.00  404.55  265.48 1.02  0.07
  524.0  11.23  10.58  2.19  41.3   0.00   0.00  456.36  253.31 1.02  0.07
  530.0  11.32  10.70  2.15  40.5   0.00   0.00  508.44  225.17 1.02  0.07
  536.0  11.41  10.82  2.11  39.7   0.00   0.00  553.92  178.69 1.02  0.07
  542.0  11.50  10.96  2.05  38.8   0.00   0.00  583.58  115.53 1.02  0.07
  548.0  11.58  11.09  1.98  38.0   0.00   0.00  589.00   43.45 1.02  0.07
  554.0  11.65  11.22  1.90  37.2   0.00   0.00  567.59  -24.96 1.02  0.07
  560.0  11.70  11.33  1.81  36.6   0.00   0.00  525.02  -77.81 1.02  0.07
  566.0  11.73  11.43  1.71  36.2   0.00   0.00  472.23 -109.61 1.02  0.07
  572.0  11.73  11.49  1.61  36.1   0.00   0.00  419.35 -122.38 1.02  0.07
  578.0  11.72  11.53  1.52  36.3   0.00   0.00  371.44 -122.19 1.02  0.07
  584.0  11.73  11.58  1.45  36.6   0.00   0.00  328.16 -114.36 1.02  0.07
  590.0  11.77  11.65  1.41  36.7   0.00   0.00  286.77 -100.25 1.02  0.07
  596.0  11.83  11.71  1.41  36.3   0.00   0.00  246.41  -77.58 1.02  0.07
  602.0  11.84  11.67  1.49  35.3   0.00   0.00  209.85  -44.29 1.02  0.07
  608.0  11.71  11.44  1.66  33.9   0.00   0.00  180.98   -1.29 1.02  0.07

Code:

CM
CM GH0n0 revA optimized for 2020 repack CH7-36 by HamiltonOTA
CM 48" height, 10.8db avg UHF, 6.2db avg VHF, 194" length of 1/4" Aluminium
CM source file nikiml's 7-51 with modified parameters
CM covered by GPL v3 or later (http://www.gnu.org/licenses/gpl.txt)
CM see http://www.digitalhome.ca/forum/showpost.php?p=907404&postcount=2
CMD--OPT -s(174,6,8) -t(6,6.5,6) --swr-target=2.7 -s(470,6,24) -t(10,11.5) --swr-target=2.0
CMD--OPT -F max(height-maxheight,0)*1000+(max(max_swr_diff,.5*ave_max_gain_diff+.5*ave_gain_diff))
CMD--OPT --num-cores=3 -a10 --de-np=50 -r restart.log
CMD--EVAL --num-cores=3 -a10 -s(174,6,8) -s(470,6,24)
CE

SY maxheight=0.6
SY radius=0.003175
SY narod_surf_spacing=0.005000776' 0.005, 0.012
SY narod_spacing=narod_surf_spacing + 2*radius

SY feed=0.0586559' 0.01, 0.1

SY b=0.1113126' 0.075, 0.25
SY a1=0.1858137' 0.07, 0.22
SY _G3=0.08555529' 0.006, 0.1
SY a2=a1+feed-_G3'this is to avoid self intersection since _G3 is to be > radius+2.5mm
SY a3=0.164709' 0.07, 0.22



SY n_h=0.07837306' -0.01, 0.14
SY n_top_dy=-0.07045071' -0.1, 0.04
SY n_b_taper=0.09976145' 0.005, 0.1
SY n_top=_G3+a3+n_top_dy- n_b_taper/2'hat head size
SY n_f=0


SY narod_top = a1+a2+a3+narod_spacing+n_h'want to put 3 reflectors between z=very_small and z=narod_top +/- very_small,  1 reflectors around narod_top and 1 above it

SY ay1=feed+a1
SY ay2=feed+a1-a2
SY ay3=feed+a1-a2+a3
SY ay4=feed+a1-a2+a3+b
SY az2=a1+a2
SY az3=a1+a2+a3
SY n_b_z=az3+narod_spacing
SY n_b_y1=n_top+n_b_taper
SY n_b_y2=n_b_y1+b

SY height=n_b_z+n_h


GW 1 15 0 feed 0 0 ay1 a1 radius
GW 2 11 0 ay1 a1 0 ay2 az2 radius
GW 3 13 0 ay2 az2 0 ay3 az3 radius
GW 4 6 0 ay3 az3 0 ay4 az3 radius
GW 11 7 n_f n_top n_b_z+n_h 0 n_b_y1 n_b_z radius
GW 12 6 0 n_b_y1 n_b_z 0 n_b_y2 n_b_z radius
GX    20    010
GW 13 13 n_f -n_top n_b_z+n_h n_f n_top n_b_z+n_h radius
GX    40    001
GW 100 7 0 -feed 0 0 feed 0 radius*.8675
GE    0
LD    5    0    0    0    24900000
GN    -1
EK
EX 0 100 4 0 1
FR    0    0    0    0    800    0
EN

hamiltonOTA2.0 · 2022-10-29T18:53:27-0400

GH2n3

GH2n3 model viewer

Code:

         --- Gain ---              -- Ratios -- -- Impedance --           
   Freq    Raw    Net   SWR BeamW    F/R    F/B    Real    Imag  AGT  corr
==========================================================================
  174.0   9.68   8.40  3.03  68.4   8.69   8.69  150.34 -197.39 1.03  0.11
  180.0   9.64   9.31  1.73  70.8  14.31  14.31  209.94 -107.03 1.03  0.11
  186.0   9.50   9.41  1.33  72.7  14.80  18.97  256.62  -65.86 1.03  0.11
  192.0   9.38   9.35  1.16  74.1  13.44  18.37  292.78  -44.50 1.03  0.11
  198.0   9.27   9.24  1.15  75.4  12.21  15.34  329.25  -33.12 1.03  0.11
  204.0   9.17   9.10  1.29  76.4  11.09  12.81  375.84  -37.24 1.03  0.11
  210.0   9.04   8.84  1.53  77.2  10.02  10.80  431.86  -79.22 1.03  0.11
  216.0   8.79   8.34  1.91  77.7   8.94   9.09  453.05 -187.58 1.03  0.11
  470.0  13.63  13.38  1.62  38.2  14.76  14.76  288.53  143.53 1.01  0.03
  476.0  13.89  13.75  1.44  38.6  11.73  11.73  299.40  110.66 1.01  0.03
  482.0  14.00  13.90  1.36  38.9  10.05  10.05  294.88   91.80 1.01  0.03
  488.0  14.06  13.97  1.34  39.1   9.02   9.02  289.65   85.32 1.01  0.03
  494.0  14.08  13.99  1.34  39.3   8.32   8.32  288.38   84.94 1.01  0.03
  500.0  14.09  14.00  1.34  39.4   7.84   7.84  291.33   86.41 1.01  0.03
  506.0  14.11  14.02  1.34  39.4   7.52   7.52  297.55   87.34 1.01  0.03
  512.0  14.12  14.04  1.33  39.3   7.29   7.29  305.83   86.38 1.01  0.03
  518.0  14.16  14.08  1.31  39.1   7.15   7.15  314.90   82.88 1.01  0.03
  524.0  14.22  14.15  1.29  38.6   7.06   7.06  323.50   76.70 1.01  0.03
  530.0  14.30  14.24  1.27  38.1   6.99   6.99  330.52   68.25 1.01  0.03
  536.0  14.38  14.34  1.24  37.5   6.90   6.90  335.26   58.27 1.01  0.03
  542.0  14.47  14.43  1.21  37.1   6.81   6.81  337.40   47.49 1.00  0.01
  548.0  14.51  14.48  1.18  36.8   6.72   6.72  336.74   36.68 1.00  0.01
  554.0  14.54  14.52  1.14  36.5   6.66   6.66  333.26   26.62 1.00  0.01
  560.0  14.55  14.53  1.11  36.2   6.62   6.62  327.24   18.16 1.00  0.01
  566.0  14.55  14.54  1.08  35.8   6.61   6.61  319.21   12.04 1.00  0.01
  572.0  14.53  14.52  1.04  35.5   6.63   6.63  309.97    8.80 1.00  0.01
  578.0  14.48  14.48  1.03  35.2   6.68   6.68  300.45    8.64 1.00  0.01
  584.0  14.40  14.39  1.05  34.8   6.77   6.77  291.66   11.45 1.00  0.01
  590.0  14.28  14.27  1.08  34.5   6.90   6.90  284.48   16.75 1.00  0.01
  596.0  14.11  14.09  1.11  34.2   7.06   7.06  279.57   23.66 1.00  0.01
  602.0  13.89  13.87  1.14  34.0   7.25   7.25  277.11   31.02 1.00  0.01
  608.0  13.61  13.58  1.17  33.8   7.42   7.42  276.51   37.62 1.00  0.01

Code:

CM
CM GH2n3 revB optimized for 2020 repack CH7-36 by HamiltonOTA
CM 46" height, 14.1db avg UHF, 9.0db avg VHF, 339" length of 1/4" Aluminium
CM source file nikiml's 7-51 with modified parameters
CM covered by GPL v3 or later (http://www.gnu.org/licenses/gpl.txt)
CM see http://www.digitalhome.ca/forum/showpost.php?p=907404&postcount=2
CMD--OPT -s(470,6,24) -t(13.2,13.4) -s(174,6,8) -t(10,10)
CMD--OPT -F .2*ave_max_gain_diff+.8*ave_gain_diff
CMD--OPT --num-cores=3 -a10 --de-np=50 -r restart.log
CMD--EVAL --num-cores=3 -a10 -s(174,6,8) -s(470,6,24)
CE

SY radius=0.003175
SY narod_surf_spacing=0.005012082' 0.005, 0.012
SY narod_spacing=narod_surf_spacing + 2*radius

SY feed=0.03762116' 0.02, 0.07

SY b=0.1182219' 0.075, 0.25
SY a1=0.2183504' 0.07, 0.22
SY _G3=0.08545636' 0.006, 0.1
SY a2=a1+feed-_G3'this is to avoid self intersection since _G3 is to be > radius+2.5mm
SY a3=0.1249182' 0.07, 0.22

SY x=-0.07626309' -0.1, -0.06
SY g1=0.07787354' 0.005, 0.1
SY l1=0.2954356' 0.1, 0.65

SY n_h=0.04777433' -0.01, 0.14
SY n_f_dx=0
SY n_top_dy=-0.0597388' -0.06, 0.04
SY n_b_taper=0.0917934' 0, 0.1
SY n_top=_G3+a3+n_top_dy- n_b_taper/2'hat head size
SY n_f=x + n_f_dx'so the hat does not tilt behind the reflectors


SY narod_top = a1+a2+a3+narod_spacing+n_h'want to put 2 reflectors between z=very_small and z=narod_top - very_small
SY dz=0.0611713' 0.03, 0.2

SY zmax = -dz+narod_top

SY dz1=0.4354465' 0.01, 2
SY z1 = zmax*dz1

SY ay1=feed+a1
SY ay2=feed+a1-a2
SY ay3=feed+a1-a2+a3
SY ay4=feed+a1-a2+a3+b
SY az2=a1+a2
SY az3=a1+a2+a3
SY n_b_z=az3+narod_spacing
SY n_b_y1=n_top+n_b_taper
SY n_b_y2=n_b_y1+b

SY n_z_coef=0.67291' 0.5, 1.4
SY n_zsz=0.4070055' 0.3, 0.55
SY n_0sz=0.4644947' 0.3, 0.6
SY n_x_diff=0.2966138' 0.15, 0.4
SY n_x = x-n_x_diff
SY n_z = narod_top*n_z_coef


GW 1 17 0 feed 0 0 ay1 a1 radius'#00f
GW 2 13 0 ay1 a1 0 ay2 az2 radius'#00f
GW 3 9 0 ay2 az2 0 ay3 az3 radius'#00f
GW 4 6 0 ay3 az3 0 ay4 az3 radius'#00f
GW 5 15 x g1 z1 x l1+g1 z1 radius'#0f0
GW 11 7 n_f n_top n_b_z+n_h 0 n_b_y1 n_b_z radius'#000
GW 12 6 0 n_b_y1 n_b_z 0 n_b_y2 n_b_z radius'#000
GX    20    010
GW 13 11 n_f -n_top n_b_z+n_h n_f n_top n_b_z+n_h radius'#000
GW 15 43 n_x -n_zsz n_z n_x n_zsz n_z radius'#D00
GX    40    001
GW 16 49 n_x -n_0sz 0 n_x n_0sz 0 radius'#D00
GW 100 5 0 -feed 0 0 feed 0 radius*.8675'#f40
GE    0
LD    5    0    0    0    24900000
GN    -1
EK
EX 0 100 3 0 1
FR    0    0    0    0    800    0
EN

hamiltonOTA2.0 · 2022-10-29T18:56:04-0400

GH4n3

GH4n3 model viewer

Code:

         --- Gain ---              -- Ratios -- -- Impedance --           
   Freq    Raw    Net   SWR BeamW    F/R    F/B    Real    Imag  AGT  corr
==========================================================================
  174.0   9.58   9.35  1.58  65.7   4.72   4.72  195.81  -41.59 1.04  0.17
  180.0  10.06  10.01  1.22  68.3  10.28  10.28  366.05   -6.63 1.04  0.17
  186.0  10.03   9.84  1.52  70.4  16.19  16.19  397.65 -108.32 1.04  0.17
  192.0   9.91   9.69  1.56  71.6  14.21  17.69  341.03 -137.17 1.04  0.17
  198.0   9.79   9.63  1.47  72.1  12.62  14.28  300.72 -116.82 1.04  0.17
  204.0   9.66   9.56  1.34  71.9  11.22  11.22  284.42  -83.87 1.04  0.17
  210.0   9.49   9.45  1.19  70.2   8.82   8.82  286.64  -48.54 1.04  0.17
  216.0   9.23   9.22  1.05  66.3   6.82   6.82  310.61   -9.82 1.04  0.17
  470.0  14.36  14.00  1.78  31.4  11.23  11.23  207.04  112.38 1.01  0.06
  476.0  14.50  14.20  1.69  32.4  10.00  10.00  227.81  118.20 1.01  0.06
  482.0  14.53  14.29  1.60  33.3   9.15   9.15  247.86  119.19 1.01  0.06
  488.0  14.53  14.33  1.53  33.9   8.57   8.57  266.57  117.06 1.01  0.06
  494.0  14.53  14.36  1.47  34.4   8.18   8.18  284.25  112.32 1.01  0.06
  500.0  14.55  14.42  1.42  34.7   7.91   7.91  300.81  104.81 1.01  0.06
  506.0  14.58  14.47  1.36  34.9   7.73   7.73  315.68   94.31 1.01  0.06
  512.0  14.62  14.54  1.31  35.1   7.61   7.61  327.92   81.03 1.01  0.06
  518.0  14.66  14.60  1.27  35.2   7.54   7.54  336.63   65.68 1.01  0.06
  524.0  14.68  14.63  1.22  35.4   7.48   7.48  341.22   49.51 1.01  0.06
  530.0  14.69  14.65  1.18  35.4   7.44   7.44  341.92   33.97 1.01  0.06
  536.0  14.69  14.66  1.15  35.5   7.38   7.38  339.72   20.06 1.01  0.06
  542.0  14.68  14.67  1.12  35.5   7.27   7.27  335.81    7.81 1.02  0.07
  548.0  14.68  14.67  1.10  35.6   7.07   7.07  330.75   -3.49 1.02  0.07
  554.0  14.68  14.68  1.09  35.8   6.81   6.81  324.11  -14.55 1.02  0.07
  560.0  14.68  14.67  1.10  36.0   6.51   6.51  314.75  -25.23 1.02  0.07
  566.0  14.70  14.69  1.12  36.2   6.26   6.26  301.91  -34.18 1.02  0.07
  572.0  14.73  14.71  1.15  36.2   6.07   6.07  286.02  -39.64 1.02  0.07
  578.0  14.76  14.73  1.20  36.1   5.93   5.93  268.50  -40.51 1.02  0.07
  584.0  14.77  14.72  1.25  35.8   5.83   5.83  250.87  -36.57 1.02  0.07
  590.0  14.76  14.69  1.31  35.3   5.75   5.75  234.43  -28.13 1.02  0.07
  596.0  14.71  14.61  1.37  34.8   5.69   5.69  220.06  -15.79 1.02  0.07
  602.0  14.59  14.45  1.44  34.4   5.61   5.61  208.39   -0.15 1.02  0.07
  608.0  14.39  14.21  1.51  34.1   5.52   5.52  199.87   18.25 1.02  0.07

Code:

CM
CM GH4n3 revB optimized for 2020 repack CH7-36 by HamiltonOTA
CM 47" height, 14.5db avg UHF, 9.6db avg VHF, 446" length of 1/4" Aluminium
CM source file nikiml's 7-51 with modified parameters
CM covered by GPL v3 or later (http://www.gnu.org/licenses/gpl.txt)
CM see http://www.digitalhome.ca/forum/showpost.php?p=907404&postcount=2
CMD--OPT -s(470,6,24) -t(13.7,13.9) -s(174,6,8) -t(10,10)
CMD--OPT -F .2*ave_max_gain_diff+.8*ave_gain_diff
CMD--OPT --num-cores=3 -a10 --de-np=50 -r restart.log
CMD--EVAL --num-cores=3 -a10 -s(174,6,8) -s(470,6,24)
CE

SY radius=0.003175
SY narod_surf_spacing=0.005203888' 0.005, 0.012
SY narod_spacing=narod_surf_spacing + 2*radius

SY feed=0.037556' 0.02, 0.07

SY b=0.1196232' 0.075, 0.25
SY a1=0.2093734' 0.07, 0.22
SY _G3=0.08706278' 0.006, 0.1
SY a2=a1+feed-_G3'this is to avoid self intersection since _G3 is to be > radius+2.5mm
SY a3=0.1372814' 0.07, 0.22

SY x=-0.07217461' -0.1, -0.06
SY g1=0.0697558' 0.005, 0.1
SY g2=0.005370263' 0.005, 0.1
SY l1=0.3039953' 0.1, 0.6
SY l2=0.5697879' 0.1, 0.65

SY n_h=0.07851863' -0.01, 0.14
SY n_f_dx=0
SY n_top_dy=-0.04733263' -0.06, 0.04
SY n_b_taper=0
SY n_top=_G3+a3+n_top_dy- n_b_taper/2'hat head size
SY n_f=x + n_f_dx'so the hat does not tilt behind the reflectors


SY narod_top = a1+a2+a3+narod_spacing+n_h'want to put 2 reflectors between z=very_small and z=narod_top - very_small
SY dz2=0.1663798' 0.02, 0.2

SY z2 = -dz2+narod_top
SY dz = z2/3

SY dz1=1.41434' 0.2, 2
SY z1 = (1+(dz1-1))*dz

SY ay1=feed+a1
SY ay2=feed+a1-a2
SY ay3=feed+a1-a2+a3
SY ay4=feed+a1-a2+a3+b
SY az2=a1+a2
SY az3=a1+a2+a3
SY n_b_z=az3+narod_spacing
SY n_b_y1=n_top+n_b_taper
SY n_b_y2=n_b_y1+b

SY n_z_coef=0.6796467' 0.5, 1.4
SY n_zsz=0.3994668' 0.3, 0.55
SY n_0sz=0.5997196' 0.3, 0.6
SY n_x_diff=0.2802909' 0.15, 0.4
SY n_x = x-n_x_diff
SY n_z = narod_top*n_z_coef


GW 1 15 0 feed 0 0 ay1 a1 radius'#00f
GW 2 13 0 ay1 a1 0 ay2 az2 radius'#00f
GW 3 11 0 ay2 az2 0 ay3 az3 radius'#00f
GW 4 7 0 ay3 az3 0 ay4 az3 radius'#00f
GW 5 17 x g1 z1 x l1+g1 z1 radius'#0f0
GW 6 31 x g2 z2 x l2+g2 z2 radius'#0f0
GW 11 6 n_f n_top n_b_z+n_h 0 n_b_y1 n_b_z radius'#000
GW 12 7 0 n_b_y1 n_b_z 0 n_b_y2 n_b_z radius'#000
GX    20    010
GW 13 19 n_f -n_top n_b_z+n_h n_f n_top n_b_z+n_h radius'#000
GW 15 43 n_x -n_zsz n_z n_x n_zsz n_z radius'#D00
GX    40    001
GW 16 63 n_x -n_0sz 0 n_x n_0sz 0 radius'#D00
GW 100 5 0 -feed 0 0 feed 0 radius'#f40
GE    0
LD    5    0    0    0    24900000
GN    -1
EK
EX 0 100 3 0 1
FR    0    0    0    0    800    0
EN

hamiltonOTA2.0 · 2022-10-29T18:58:06-0400

GH6n3

GH6n3 model viewer

Code:

         --- Gain ---              -- Ratios -- -- Impedance --           
   Freq    Raw    Net   SWR BeamW    F/R    F/B    Real    Imag  AGT  corr
==========================================================================
  174.0   9.87   9.75  1.39  65.6   5.44   5.44  220.35  -30.40 1.02  0.08
  180.0  10.16  10.10  1.26  68.5  10.96  10.96  375.72  -12.86 1.02  0.08
  186.0  10.09   9.93  1.46  70.5  16.18  16.26  390.76  -94.47 1.02  0.08
  192.0   9.98   9.83  1.45  71.7  14.24  17.02  341.32 -111.22 1.02  0.08
  198.0   9.87   9.78  1.34  72.1  12.77  13.67  308.69  -89.50 1.02  0.08
  204.0   9.75   9.70  1.23  71.3  10.63  10.63  295.92  -62.81 1.02  0.08
  210.0   9.56   9.54  1.15  68.6   8.20   8.20  286.60  -38.24 1.02  0.08
  216.0   9.24   9.23  1.10  63.5   6.19   6.19  273.73    7.39 1.02  0.08
  470.0  14.55  14.24  1.72  31.9  12.11  12.11  204.28   97.10 1.00  0.01
  476.0  14.70  14.44  1.65  33.0  11.90  11.90  227.86  110.25 1.00  0.01
  482.0  14.77  14.56  1.55  34.1  11.45  11.45  254.06  113.70 1.00  0.01
  488.0  14.79  14.64  1.47  35.0  10.91  10.91  277.46  108.57 1.00  0.01
  494.0  14.79  14.68  1.39  35.6  10.41  10.41  295.63   98.53 1.00  0.01
  500.0  14.80  14.72  1.33  36.0  10.01  10.01  308.87   86.50 1.00  0.01
  506.0  14.83  14.77  1.28  36.1   9.71   9.71  318.23   73.85 1.00  0.01
  512.0  14.88  14.84  1.23  36.1   9.50   9.50  324.41   61.02 1.00  0.01
  518.0  14.94  14.91  1.19  36.0   9.36   9.36  327.63   48.31 1.00  0.01
  524.0  15.00  14.98  1.16  35.9   9.27   9.27  327.82   36.25 1.00  0.01
  530.0  15.04  15.03  1.12  35.8   9.18   9.18  325.22   25.89 1.00  0.01
  536.0  15.05  15.04  1.09  35.7   9.04   9.04  320.96   18.36 1.00  0.01
  542.0  15.06  15.06  1.07  35.4   8.78   8.78  317.12   13.71 1.00 -0.00
  548.0  15.03  15.03  1.06  35.0   8.35   8.35  315.38   10.28 1.00 -0.00
  554.0  14.97  14.97  1.06  34.7   7.83   7.83  315.76    5.56 1.00 -0.00
  560.0  14.90  14.90  1.06  34.5   7.33   7.33  316.40   -2.55 1.00 -0.00
  566.0  14.84  14.84  1.07  34.1   6.91   6.91  314.17  -14.41 1.00 -0.00
  572.0  14.80  14.79  1.10  33.6   6.61   6.61  306.17  -28.05 1.00 -0.00
  578.0  14.78  14.76  1.15  33.2   6.42   6.42  291.35  -39.93 1.00 -0.00
  584.0  14.79  14.75  1.21  32.6   6.34   6.34  271.01  -46.60 1.00 -0.00
  590.0  14.81  14.74  1.29  32.0   6.34   6.34  247.97  -46.14 1.00 -0.00
  596.0  14.81  14.70  1.38  31.6   6.39   6.39  225.15  -38.38 1.00 -0.00
  602.0  14.78  14.62  1.48  31.2   6.49   6.49  204.75  -24.28 1.00 -0.00
  608.0  14.69  14.46  1.60  30.8   6.61   6.61  188.10   -5.16 1.00 -0.00

Code:

CM
CM GH6n3 revB optimized for 2020 repack CH7-36 by HamiltonOTA
CM 48" height, 14.8db avg UHF, 9.7db avg VHF, 507" length of 1/4" Aluminium
CM source file nikiml's 7-51 with modified parameters
CM covered by GPL v3 or later (http://www.gnu.org/licenses/gpl.txt)
CM see http://www.digitalhome.ca/forum/showpost.php?p=907404&postcount=2
CMD--OPT -s(470,6,24) -t(14.2,14.4) -s(174,6,8) -t(9.5,9)
CMD--OPT -F .2*ave_max_gain_diff+.8*ave_gain_diff
CMD--OPT --num-cores=3 -a10 --de-np=50 -r restart.log
CMD--EVAL --num-cores=3 -a10 -s(174,6,8) -s(470,6,24)
CE

SY radius=0.003175
SY narod_surf_spacing=0.005259715' 0.005, 0.012
SY narod_spacing=narod_surf_spacing + 2*radius

SY feed=0.03760902' 0.02, 0.07

SY b=0.1238007' 0.075, 0.25
SY a1=0.1988505' 0.07, 0.22
SY _G3=0.07057322' 0.006, 0.1
SY a2=a1+feed-_G3'this is to avoid self intersection since _G3 is to be > radius+2.5mm
SY a3=0.1320822' 0.07, 0.22



SY x=-0.07434786' -0.1, -0.06
SY g1=0.04418188' 0.005, 0.1
SY g2=0.07279168' 0.005, 0.1
SY g3=0.005503182' 0.005, 0.1
SY l1=0.3159127' 0.1, 0.6
SY l2=0.4422603' 0.1, 0.65
SY l3=0.5675882' 0.1, 0.65

SY n_h=0.08920561' -0.01, 0.14
SY n_f_dx=0
SY n_top_dy=-0.03788797' -0.06, 0.04
SY n_b_taper=0
SY n_top=_G3+a3+n_top_dy- n_b_taper/2'hat head size
SY n_f=x + n_f_dx'so the hat does not tilt behind the reflectors


SY narod_top = a1+a2+a3+narod_spacing+n_h'want to put 3 reflectors between z=very_small and z=narod_top +/- very_small,  1 reflectors around narod_top and 1 above it
SY dz3=0.1466964' 0.017, 0.15
SY above_below=-1
SY sign = abs(above_below)/above_below' may fail at 0

SY z3 = sign*dz3+narod_top
SY dz = z3/5

SY dz1=1.785288' 0.2, 2
SY z1 = (1+(dz1-1))*dz
SY dz2=1.826408' 0.2, 2
SY z2 = (3+(dz2-1))*dz

SY ay1=feed+a1
SY ay2=feed+a1-a2
SY ay3=feed+a1-a2+a3
SY ay4=feed+a1-a2+a3+b
SY az2=a1+a2
SY az3=a1+a2+a3
SY n_b_z=az3+narod_spacing
SY n_b_y1=n_top+n_b_taper
SY n_b_y2=n_b_y1+b

SY n_z_coef=0.7321888' 0.5, 1.4
SY n_zsz=0.4028341' 0.3, 0.55
SY n_0sz=0.4731055' 0.3, 0.6
SY n_x_diff=0.280824' 0.15, 0.4
SY n_x = x-n_x_diff
SY n_z = narod_top*n_z_coef


GW 1 15 0 feed 0 0 ay1 a1 radius'#00f
GW 2 13 0 ay1 a1 0 ay2 az2 radius'#00f
GW 3 9 0 ay2 az2 0 ay3 az3 radius'#00f
GW 4 7 0 ay3 az3 0 ay4 az3 radius'#00f
GW 5 17 x g1 z1 x l1+g1 z1 radius'#0f0
GW 6 23 x g2 z2 x l2+g2 z2 radius'#0f0
GW 7 31 x g3 z3 x l3+g3 z3 radius'#0f0
GW 11 6 n_f n_top n_b_z+n_h 0 n_b_y1 n_b_z radius'#000
GW 12 7 0 n_b_y1 n_b_z 0 n_b_y2 n_b_z radius'#000
GX    20    010
GW 13 17 n_f -n_top n_b_z+n_h n_f n_top n_b_z+n_h radius'#000
GW 15 43 n_x -n_zsz n_z n_x n_zsz n_z radius'#D00
GX    40    001
GW 16 51 n_x -n_0sz 0 n_x n_0sz 0 radius'#D00
GW 100 5 0 -feed 0 0 feed 0 radius*.8675'#f40
GE    0
LD    5    0    0    0    24900000
GN    -1
EK
EX 0 100 3 0 1
FR    0    0    0    0    800    0
EN

hamiltonOTA2.0 · 2022-10-29T19:00:42-0400

GH8n3

GH8n3 model viewer

Code:

         --- Gain ---              -- Ratios -- -- Impedance --           
   Freq    Raw    Net   SWR BeamW    F/R    F/B    Real    Imag  AGT  corr
==========================================================================
  174.0   9.80   9.57  1.58  65.0   4.83   4.83  198.01  -49.08 1.01  0.05
  180.0  10.16  10.12  1.22  68.1  10.85  10.85  365.73   12.01 1.01  0.05
  186.0  10.06   9.90  1.47  70.4  16.34  16.67  417.10  -71.19 1.01  0.05
  192.0   9.91   9.74  1.49  71.8  14.45  17.57  376.58 -109.91 1.01  0.05
  198.0   9.77   9.64  1.41  72.6  12.98  14.11  339.45 -103.37 1.01  0.05
  204.0   9.65   9.56  1.33  72.3  11.11  11.11  320.06  -85.97 1.01  0.05
  210.0   9.49   9.43  1.26  70.7   8.73   8.73  306.79  -70.12 1.01  0.05
  216.0   9.25   9.22  1.17  66.9   6.75   6.75  288.77  -43.66 1.01  0.05
  470.0  15.09  14.78  1.72  31.1  12.62  12.62  214.70  109.29 1.01  0.03
  476.0  15.34  15.05  1.68  31.6  12.46  12.46  227.08  116.15 1.01  0.03
  482.0  15.45  15.18  1.65  32.3  12.35  12.35  243.65  125.08 1.01  0.03
  488.0  15.46  15.22  1.60  33.2  12.13  12.13  265.70  130.38 1.01  0.03
  494.0  15.44  15.24  1.54  33.9  11.78  11.78  289.64  128.65 1.01  0.03
  500.0  15.41  15.25  1.48  34.6  11.36  11.36  311.52  120.28 1.01  0.03
  506.0  15.38  15.25  1.42  35.0  10.93  10.93  329.37  107.49 1.01  0.03
  512.0  15.37  15.26  1.37  35.3  10.54  10.54  342.90   92.27 1.01  0.03
  518.0  15.36  15.28  1.33  35.5  10.20  10.20  352.54   75.82 1.01  0.03
  524.0  15.36  15.29  1.29  35.6   9.92   9.92  358.63   58.67 1.01  0.03
  530.0  15.34  15.29  1.25  35.8   9.68   9.68  361.22   41.21 1.01  0.03
  536.0  15.32  15.28  1.22  36.0   9.49   9.49  360.21   24.00 1.01  0.03
  542.0  15.28  15.25  1.19  36.2   9.31   9.31  355.79    7.85 1.01  0.03
  548.0  15.24  15.22  1.16  36.3   9.14   9.14  348.49   -6.72 1.01  0.03
  554.0  15.20  15.18  1.15  36.5   8.97   8.97  338.72  -19.64 1.01  0.03
  560.0  15.17  15.15  1.14  36.7   8.79   8.79  326.43  -30.83 1.01  0.03
  566.0  15.16  15.14  1.14  36.9   8.62   8.62  311.38  -39.67 1.01  0.03
  572.0  15.18  15.16  1.17  36.9   8.50   8.50  293.84  -45.09 1.01  0.03
  578.0  15.23  15.20  1.20  36.8   8.45   8.45  274.79  -46.15 1.01  0.03
  584.0  15.28  15.23  1.25  36.5   8.43   8.43  255.60  -42.59 1.01  0.03
  590.0  15.31  15.23  1.31  36.2   8.43   8.43  237.45  -34.72 1.01  0.03
  596.0  15.31  15.20  1.37  35.8   8.44   8.44  221.14  -23.13 1.01  0.03
  602.0  15.28  15.13  1.45  35.4   8.46   8.46  207.14   -8.47 1.01  0.03
  608.0  15.19  14.99  1.54  34.9   8.47   8.47  195.72    8.71 1.01  0.03

Code:

CM
CM GH8n3 revB optimized for 2020 repack CH7-36 by HamiltonOTA
CM 58" height, 15.2db avg UHF, 9.6db avg VHF, 531" length of 1/4" Aluminium
CM source file nikiml's 7-51 with modified parameters
CM covered by GPL v3 or later (http://www.gnu.org/licenses/gpl.txt)
CM see http://www.digitalhome.ca/forum/showpost.php?p=907404&postcount=2
CMD--OPT -s(470,6,24) -t(14.7,14.9) -s(174,6,8) -t(9.5,9.2)
CMD--OPT -F .2*ave_max_gain_diff+.8*ave_gain_diff
CMD--OPT --num-cores=3 -a10 --de-np=50 -r restart.log
CMD--EVAL --num-cores=3 -a10 -s(174,6,8) -s(470,6,24)
CE

SY radius=0.003175
SY narod_surf_spacing=0.005237492' 0.005, 0.012
SY narod_spacing=narod_surf_spacing + 2*radius

SY feed=0.03920173' 0.01, 0.1

SY b=0.112245' 0.075, 0.25
SY a1=0.1961872' 0.07, 0.22
SY _G3=0.08033963' 0.006, 0.1
SY a2=a1+feed-_G3'this is to avoid self intersection since _G3 is to be > radius+2.5mm
SY a3=0.1460384' 0.07, 0.22



SY x=-0.0785844' -0.12, -0.05
SY g1=0.03788967' 0.005, 0.1
SY g2=0.07038058' 0.005, 0.1
SY g3=0.005033045' 0.005, 0.1
SY g4=0.09228412' 0.005, 0.1
SY l1=0.3320637' 0.1, 0.6
SY l2=0.3033008' 0.1, 0.6
SY l3=0.5609985' 0.5, 0.65
SY l4=0.2940402' 0.1, 0.65

SY n_h=0.06176904' -0.01, 0.14
SY n_f_dx=0
SY n_top_dy=-0.03613417' -0.06, 0.04
SY n_b_taper=0
SY n_top=_G3+a3+n_top_dy- n_b_taper/2'hat head size
SY n_f=x + n_f_dx'so the hat does not tilt behind the reflectors


SY narod_top = a1+a2+a3+narod_spacing+n_h'want to put 3 reflectors between z=very_small and z=narod_top +/- very_small,  1 reflectors around narod_top and 1 above it
SY dz3=0.1395098' 0.017, 0.18
SY above_below=-1
SY sign = abs(above_below)/above_below' may fail at 0

SY z3 = sign*dz3+narod_top
SY dz = z3/5

SY dz1=1.546667' 0.2, 2
SY z1 = (1+(dz1-1))*dz
SY dz2=1.529476' 0.2, 2
SY z2 = (3+(dz2-1))*dz


SY dz4=0.2996642' 0.05, 0.3
SY z4=z3+dz4

SY ay1=feed+a1
SY ay2=feed+a1-a2
SY ay3=feed+a1-a2+a3
SY ay4=feed+a1-a2+a3+b
SY az2=a1+a2
SY az3=a1+a2+a3
SY n_b_z=az3+narod_spacing
SY n_b_y1=n_top+n_b_taper
SY n_b_y2=n_b_y1+b

SY n_z_coef=0.7732135' 0.5, 1.4
SY n_zsz=0.4026394' 0.3, 0.55
SY n_0sz=0.4716833' 0.3, 0.55
SY n_x_diff=0.2676724' 0.15, 0.4
SY n_x = x-n_x_diff
SY n_z = narod_top*n_z_coef


GW 1 15 0 feed 0 0 ay1 a1 radius'#00f
GW 2 11 0 ay1 a1 0 ay2 az2 radius'#00f
GW 3 11 0 ay2 az2 0 ay3 az3 radius'#00f
GW 4 6 0 ay3 az3 0 ay4 az3 radius'#00f
GW 5 17 x g1 z1 x l1+g1 z1 radius'#0f0
GW 6 17 x g2 z2 x l2+g2 z2 radius'#0f0
GW 7 29 x g3 z3 x l3+g3 z3 radius'#0f0
GW 8 15 x g4 z4 x l4+g4 z4 radius'#0f0
GW 11 5 n_f n_top n_b_z+n_h 0 n_b_y1 n_b_z radius'#000
GW 12 6 0 n_b_y1 n_b_z 0 n_b_y2 n_b_z radius'#000
GX    20    010
GW 13 21 n_f -n_top n_b_z+n_h n_f n_top n_b_z+n_h radius'#000
GW 15 43 n_x -n_zsz n_z n_x n_zsz n_z radius'#D00
GX    40    001
GW 16 51 n_x -n_0sz 0 n_x n_0sz 0 radius'#D00
GW 100 5 0 -feed 0 0 feed 0 radius*.8675'#f40
GE    0
LD    5    0    0    0    24900000
GN    -1
EK
EX 0 100 3 0 1
FR    0    0    0    0    800    0
EN

hamiltonOTA2.0 · 2022-10-29T19:02:21-0400

GH10n3

GH10n3 model viewer

Code:

         --- Gain ---              -- Ratios -- -- Impedance --           
   Freq    Raw    Net   SWR BeamW    F/R    F/B    Real    Imag  AGT  corr
==========================================================================
  174.0  10.11   9.80  1.71  64.4   5.52   5.52  218.53 -112.17 1.03  0.11
  180.0  10.36  10.29  1.29  67.5  12.11  12.11  368.10  -51.96 1.03  0.11
  186.0  10.23  10.03  1.53  69.4  16.06  16.94  394.60 -113.98 1.03  0.11
  192.0  10.08   9.88  1.54  70.3  14.19  15.03  352.76 -131.02 1.03  0.11
  198.0   9.95   9.80  1.45  70.4  11.78  11.78  321.15 -113.57 1.03  0.11
  204.0   9.82   9.72  1.35  69.5   9.29   9.29  308.54  -92.03 1.03  0.11
  210.0   9.60   9.52  1.30  67.4   7.33   7.33  302.55  -79.09 1.03  0.11
  216.0   9.25   9.19  1.26  63.8   5.71   5.71  288.41  -66.51 1.03  0.11
  470.0  15.05  14.90  1.45  30.6   9.17   9.17  230.97   71.33 1.00  0.01
  476.0  15.38  15.22  1.47  30.7   9.36   9.36  231.56   75.40 1.00  0.01
  482.0  15.60  15.42  1.50  30.8   9.64   9.64  233.94   86.21 1.00  0.01
  488.0  15.69  15.49  1.53  31.4  10.04  10.04  243.99  101.48 1.00  0.01
  494.0  15.69  15.50  1.53  32.2  10.48  10.48  264.39  114.32 1.00  0.01
  500.0  15.63  15.46  1.49  33.3  10.76  10.76  291.77  117.66 1.00  0.01
  506.0  15.58  15.44  1.43  34.3  10.76  10.76  318.85  109.05 1.00  0.01
  512.0  15.58  15.47  1.37  35.1  10.50  10.50  339.43   91.57 1.00  0.01
  518.0  15.61  15.53  1.31  35.4  10.11  10.11  351.52   70.53 1.00  0.01
  524.0  15.66  15.60  1.26  35.4   9.76   9.76  356.55   49.73 1.00  0.01
  530.0  15.68  15.64  1.22  35.4   9.51   9.51  356.58   30.51 1.00  0.01
  536.0  15.67  15.64  1.18  35.3   9.35   9.35  352.62   13.17 1.00  0.01
  542.0  15.66  15.64  1.15  35.3   9.21   9.21  345.31   -1.73 1.00 -0.01
  548.0  15.65  15.64  1.13  35.2   9.09   9.09  335.57  -13.75 1.00 -0.01
  554.0  15.65  15.64  1.11  35.0   8.97   8.97  324.27  -22.83 1.00 -0.01
  560.0  15.66  15.65  1.11  34.7   8.84   8.84  312.05  -29.10 1.00 -0.01
  566.0  15.67  15.66  1.12  34.2   8.70   8.70  299.41  -32.71 1.00 -0.01
  572.0  15.66  15.64  1.13  33.9   8.55   8.55  286.82  -33.90 1.00 -0.01
  578.0  15.64  15.62  1.16  33.6   8.39   8.39  274.57  -33.04 1.00 -0.01
  584.0  15.57  15.54  1.19  33.4   8.22   8.22  262.66  -30.49 1.00 -0.01
  590.0  15.47  15.43  1.23  33.5   8.06   8.06  250.80  -26.35 1.00 -0.01
  596.0  15.33  15.27  1.27  34.0   7.92   7.92  238.80  -20.16 1.00 -0.01
  602.0  15.18  15.10  1.33  34.5   7.84   7.84  227.11  -11.25 1.00 -0.01
  608.0  15.01  14.90  1.38  35.0   7.80   7.80  216.71    0.58 1.00 -0.01

Code:

CM
CM GH10n3 revB optimized for 2020 repack CH7-36 by HamiltonOTA
CM 60" height, 15.4db avg UHF, 9.8db avg VHF, 598" length of 1/4" Aluminium
CM source file nikiml's 7-51 with modified parameters
CM covered by GPL v3 or later (http://www.gnu.org/licenses/gpl.txt)
CM see http://www.digitalhome.ca/forum/showpost.php?p=907404&postcount=2
CMD--OPT -s(470,6,24) -t(15.5,15.5) -s(174,6,8) -t(9.5,9)
CMD--OPT -F .2*ave_max_gain_diff+.8*ave_gain_diff
CMD--OPT --num-cores=3 -a10 --de-np=50 -r restart.log
CMD--EVAL --num-cores=3 -a10 -s(174,6,8) -s(470,6,24)
CE

SY radius=0.003175
SY narod_surf_spacing=0.005033422' 0.005, 0.012
SY narod_spacing=narod_surf_spacing + 2*radius

SY feed=0.03794662' 0.01, 0.1

SY b=0.1151978' 0.075, 0.25
SY a1=0.1951161' 0.07, 0.22
SY _G3=0.07161507' 0.006, 0.1
SY a2=a1+feed-_G3'this is to avoid self intersection since _G3 is to be > radius+2.5mm
SY a3=0.1309832' 0.07, 0.22



SY x=-0.07335856' -0.12, -0.05
SY g1=0.03755773' 0.005, 0.1
SY g2=0.06932691' 0.005, 0.1
SY g3=0.005051681' 0.005, 0.1
SY g4=0.09943516' 0.005, 0.1
SY g5=0.01245456' 0.005, 0.1
SY l1=0.3156791' 0.1, 0.6
SY l2=0.3137314' 0.1, 0.6
SY l3=0.5465586' 0.1, 0.65
SY l4=0.5016991' 0.5, 0.65
SY l5=0.2670768' 0.1, 0.65

SY n_h=0.06876217' -0.01, 0.14
SY n_f_dx=0
SY n_top_dy=-0.02867754' -0.06, 0.04
SY n_b_taper=0
SY n_top=_G3+a3+n_top_dy- n_b_taper/2'hat head size
SY n_f=x + n_f_dx'so the hat does not tilt behind the reflectors
SY narod_top = a1+a2+a3+narod_spacing+n_h'want to put 3 reflectors between z=very_small and z=narod_top +/- very_small,  1 reflectors around narod_top and 1 above it

SY dz4=0.05977028' 0.017, 0.08
SY above_below=0.4613491' -1, 1
SY sign = abs(above_below)/above_below'may fail at 0
SY z4 = sign*dz4+narod_top
SY dz = z4/7
SY dz1=1.605565' 0.2, 2
SY z1 = (1+(dz1-1))*dz
SY dz2=1.2999' 0.2, 2
SY z2 = (3+(dz2-1))*dz
SY dz3=0.5464454' 0.2, 2
SY z3 = (5+(dz3-1))*dz
SY dz5=0.1310735' 0.05, 0.3
SY z5=z4+dz5

SY ay1=feed+a1
SY ay2=feed+a1-a2
SY ay3=feed+a1-a2+a3
SY ay4=feed+a1-a2+a3+b
SY az2=a1+a2
SY az3=a1+a2+a3
SY n_b_z=az3+narod_spacing
SY n_b_y1=n_top+n_b_taper
SY n_b_y2=n_b_y1+b

SY n_z_coef=0.8335717' 0.5, 1.4
SY n_zsz=0.4060173' 0.3, 0.55
SY n_0sz=0.4624337' 0.3, 0.55
SY n_x_diff=0.258823' 0.15, 0.4
SY n_x = x-n_x_diff
SY n_z = narod_top*n_z_coef


GW 1 15 0 feed 0 0 ay1 a1 radius'#00f
GW 2 13 0 ay1 a1 0 ay2 az2 radius'#00f
GW 3 9 0 ay2 az2 0 ay3 az3 radius'#00f
GW 4 6 0 ay3 az3 0 ay4 az3 radius'#00f
GW 5 17 x g1 z1 x l1+g1 z1 radius'#0f0
GW 6 17 x g2 z2 x l2+g2 z2 radius'#0f0
GW 7 29 x g3 z3 x l3+g3 z3 radius'#0f0
GW 8 27 x g4 z4 x l4+g4 z4 radius'#0f0
GW 8 15 x g5 z5 x l5+g5 z5 radius'#0f0
GW 11 5 n_f n_top n_b_z+n_h 0 n_b_y1 n_b_z radius'#000
GW 12 6 0 n_b_y1 n_b_z 0 n_b_y2 n_b_z radius'#000
GX    20    010
GW 13 19 n_f -n_top n_b_z+n_h n_f n_top n_b_z+n_h radius'#000
GW 15 43 n_x -n_zsz n_z n_x n_zsz n_z radius'#D00
GX    40    001
GW 16 49 n_x -n_0sz 0 n_x n_0sz 0 radius'#D00
GW 100 5 0 -feed 0 0 feed 0 radius*.8675'#f40
GE    0
LD    5    0    0    0    24900000
GN    -1
EK
EX 0 100 3 0 1 0 0

FR    0    0    0    0    800    0
EN

hamiltonOTA2.0 · 2022-10-29T19:04:53-0400

GH6n5

GH6n5 model viewer

Code:

         --- Gain ---              -- Ratios -- -- Impedance --           
   Freq    Raw    Net   SWR BeamW    F/R    F/B    Real    Imag  AGT  corr
==========================================================================
  174.0  10.28  10.26  1.15  66.9   8.02   8.02  272.69  -27.60 1.02  0.08
  180.0  10.36  10.30  1.27  68.8  12.64  12.64  374.43  -27.56 1.02  0.08
  186.0  10.32  10.20  1.40  69.9  16.23  16.23  389.62  -71.58 1.02  0.08
  192.0  10.29  10.16  1.40  70.2  15.24  17.70  365.67  -90.72 1.02  0.08
  198.0  10.26  10.16  1.35  70.1  14.21  16.36  339.78  -86.74 1.02  0.08
  204.0  10.21  10.14  1.27  68.9  13.43  13.95  320.42  -71.53 1.02  0.08
  210.0  10.07  10.04  1.17  66.3  11.56  11.56  305.26  -45.98 1.02  0.08
  216.0   9.76   9.76  1.01  62.5   9.43   9.43  302.37    2.46 1.02  0.08
  470.0  14.80  14.45  1.77  32.2  11.52  11.52  217.31  122.44 1.00 -0.00
  476.0  14.90  14.62  1.67  33.1  10.87  10.87  243.53  128.37 1.00 -0.00
  482.0  14.95  14.72  1.58  33.7  10.32  10.32  267.87  127.60 1.00 -0.00
  488.0  14.99  14.81  1.51  34.1   9.98   9.98  290.10  122.66 1.00 -0.00
  494.0  15.04  14.89  1.45  34.3   9.83   9.83  310.68  113.89 1.00 -0.00
  500.0  15.09  14.97  1.39  34.5   9.78   9.78  329.04  100.84 1.00 -0.00
  506.0  15.15  15.06  1.34  34.7   9.82   9.82  343.57   83.51 1.00 -0.00
  512.0  15.19  15.12  1.29  35.0   9.88   9.88  352.38   63.17 1.00 -0.00
  518.0  15.23  15.18  1.24  35.2   9.94   9.94  354.42   42.44 1.00 -0.00
  524.0  15.26  15.23  1.19  35.3   9.96   9.96  350.51   24.36 1.00 -0.00
  530.0  15.27  15.25  1.15  35.3   9.84   9.84  343.22   10.78 1.00 -0.00
  536.0  15.27  15.26  1.12  35.2   9.57   9.57  335.49    1.44 1.00 -0.00
  542.0  15.25  15.24  1.10  35.1   9.15   9.15  329.18   -5.58 1.00 -0.00
  548.0  15.21  15.21  1.09  35.0   8.68   8.68  324.35  -12.81 1.00 -0.00
  554.0  15.15  15.14  1.10  34.8   8.25   8.25  319.08  -22.25 1.00 -0.00
  560.0  15.10  15.09  1.12  34.4   7.96   7.96  310.08  -33.70 1.00 -0.00
  566.0  15.08  15.06  1.16  33.9   7.83   7.83  295.18  -44.05 1.00 -0.00
  572.0  15.09  15.05  1.21  33.4   7.84   7.84  275.29  -49.55 1.00 -0.00
  578.0  15.13  15.07  1.28  32.9   7.97   7.97  253.30  -48.26 1.00 -0.00
  584.0  15.19  15.10  1.35  32.3   8.17   8.17  232.12  -40.22 1.00 -0.00
  590.0  15.23  15.10  1.42  31.7   8.39   8.39  213.84  -26.61 1.00 -0.00
  596.0  15.23  15.05  1.50  31.0   8.56   8.56  199.67   -9.04 1.00 -0.00
  602.0  15.16  14.94  1.58  30.5   8.59   8.59  189.87   10.69 1.00 -0.00
  608.0  14.99  14.72  1.66  30.3   8.46   8.46  183.65   31.33 1.00 -0.00

Code:

CM
CM GH6n5 revB optimized for 2020 repack CH7-36 by HamiltonOTA
CM 49" height, 15.0db avg UHF, 10.0db avg VHF, 594" length of 1/4" Aluminium
CM source file nikiml's 7-51 with modified parameters and extra narods
CM covered by GPL v3 or later (http://www.gnu.org/licenses/gpl.txt)
CM see http://www.digitalhome.ca/forum/showpost.php?p=907404&postcount=2
CMD--OPT -s(470,6,24) -t(14.2,14.4) -s(174,6,8) -t(9.5,9)
CMD--OPT -F .2*ave_max_gain_diff+.8*ave_gain_diff
CMD--OPT --num-cores=3 -a10 --de-np=50 -r restart.log
CMD--EVAL --num-cores=3 -a10 -s(174,6,8) -s(470,6,24)
CE

SY radius=0.003175
SY narod_surf_spacing=0.005273629' 0.005, 0.012
SY narod_spacing=narod_surf_spacing + 2*radius

SY feed=0.03764473' 0.02, 0.07

SY b=0.1234987' 0.075, 0.25
SY a1=0.2021945' 0.07, 0.22
SY _G3=0.07133552' 0.006, 0.1
SY a2=a1+feed-_G3'this is to avoid self intersection since _G3 is to be > radius+2.5mm
SY a3=0.1320503' 0.07, 0.22



SY x=-0.07282099' -0.1, -0.06
SY g1=0.05426588' 0.005, 0.1
SY g2=0.04193851' 0.005, 0.1
SY g3=0.005449938' 0.005, 0.1
SY l1=0.314252' 0.1, 0.6
SY l2=0.463416' 0.1, 0.65
SY l3=0.5617543' 0.1, 0.65

SY n_h=0.09888185' -0.01, 0.14
SY n_f_dx=0
SY n_top_dy=-0.03872668' -0.06, 0.04
SY n_b_taper=0
SY n_top=_G3+a3+n_top_dy- n_b_taper/2'hat head size
SY n_f=x + n_f_dx'so the hat does not tilt behind the reflectors


SY narod_top = a1+a2+a3+narod_spacing+n_h'want to put 3 reflectors between z=very_small and z=narod_top +/- very_small,  1 reflectors around narod_top and 1 above it
SY dz3=0.147952' 0.017, 0.15
SY above_below=-1
SY sign = abs(above_below)/above_below' may fail at 0

SY z3 = sign*dz3+narod_top
SY dz = z3/5

SY dz1=1.885202' 0.2, 2
SY z1 = (1+(dz1-1))*dz
SY dz2=1.92889' 0.2, 2
SY z2 = (3+(dz2-1))*dz

SY ay1=feed+a1
SY ay2=feed+a1-a2
SY ay3=feed+a1-a2+a3
SY ay4=feed+a1-a2+a3+b
SY az2=a1+a2
SY az3=a1+a2+a3
SY n_b_z=az3+narod_spacing
SY n_b_y1=n_top+n_b_taper
SY n_b_y2=n_b_y1+b

SY n_z_coef=0.8919642' 0.5, 1.4
SY n_zm_coef=0.4740929' 0.2, 0.8
SY n_zsz=0.4087552' 0.3, 0.55
SY n_0sz=0.5994285' 0.3, 0.6
SY n_msz=0.454198' 0.3, 0.6
SY n_x_diff=0.289004' 0.15, 0.4
SY n_x = x-n_x_diff
SY n_z = narod_top*n_z_coef
SY n_mz= n_z*n_zm_coef


GW 1 15 0 feed 0 0 ay1 a1 radius'#00f
GW 2 13 0 ay1 a1 0 ay2 az2 radius'#00f
GW 3 9 0 ay2 az2 0 ay3 az3 radius'#00f
GW 4 7 0 ay3 az3 0 ay4 az3 radius'#00f
GW 5 17 x g1 z1 x l1+g1 z1 radius'#0f0
GW 6 25 x g2 z2 x l2+g2 z2 radius'#0f0
GW 7 29 x g3 z3 x l3+g3 z3 radius'#0f0
GW 11 7 n_f n_top n_b_z+n_h 0 n_b_y1 n_b_z radius'#000
GW 12 7 0 n_b_y1 n_b_z 0 n_b_y2 n_b_z radius'#000
GX    20    010
GW 13 17 n_f -n_top n_b_z+n_h n_f n_top n_b_z+n_h radius'#000
GW 14 49 n_x -n_msz n_mz n_x n_msz n_mz radius'#D00
GW 15 43 n_x -n_zsz n_z n_x n_zsz n_z radius'#D00
GX    40    001
GW 16 63 n_x -n_0sz 0 n_x n_0sz 0 radius'#D00
GW 100 5 0 -feed 0 0 feed 0 radius*.8675'#f40
GE    0
LD    5    0    0    0    24900000
GN    -1
EK
EX 0 100 3 0 1
FR    0    0    0    0    800    0
EN

hamiltonOTA2.0 · 2022-10-29T19:06:44-0400

GH8n5

GH8n5 model viewer

Code:

         --- Gain ---              -- Ratios -- -- Impedance --           
   Freq    Raw    Net   SWR BeamW    F/R    F/B    Real    Imag  AGT  corr
==========================================================================
  174.0  10.24  10.16  1.31  66.3   7.32   7.32  237.12  -35.04 1.05  0.21
  180.0  10.37  10.34  1.16  68.7  13.10  13.10  341.34  -25.59 1.05  0.21
  186.0  10.27  10.19  1.31  70.0  16.26  18.05  362.00  -63.07 1.05  0.21
  192.0  10.18  10.09  1.33  70.7  14.87  19.40  348.97  -79.47 1.05  0.21
  198.0  10.12  10.04  1.32  70.7  13.74  17.06  336.19  -80.70 1.05  0.21
  204.0  10.05   9.97  1.31  70.3  12.80  14.41  329.17  -80.58 1.05  0.21
  210.0   9.94   9.85  1.33  69.0  12.05  12.14  319.86  -85.48 1.05  0.21
  216.0   9.73   9.64  1.33  66.3  10.19  10.19  298.00  -85.42 1.05  0.21
  470.0  15.37  15.00  1.80  31.1  10.09  10.09  189.44   89.39 1.03  0.12
  476.0  15.55  15.21  1.74  31.7   9.97   9.97  203.00   99.64 1.03  0.12
  482.0  15.57  15.29  1.67  32.4   9.62   9.62  219.07  104.75 1.03  0.12
  488.0  15.54  15.30  1.60  32.7   9.32   9.32  233.91  107.08 1.03  0.12
  494.0  15.55  15.34  1.54  32.8   9.20   9.20  249.34  108.67 1.03  0.12
  500.0  15.58  15.41  1.49  32.9   9.18   9.18  266.84  107.97 1.03  0.12
  506.0  15.61  15.47  1.42  33.1   9.20   9.20  285.85  102.85 1.03  0.12
  512.0  15.64  15.54  1.35  33.4   9.23   9.23  304.33   91.79 1.03  0.12
  518.0  15.64  15.57  1.28  33.8   9.25   9.25  319.18   74.69 1.03  0.12
  524.0  15.60  15.56  1.21  34.3   9.25   9.25  327.47   53.67 1.03  0.12
  530.0  15.54  15.51  1.15  34.7   9.22   9.22  328.40   32.51 1.03  0.12
  536.0  15.48  15.47  1.09  35.1   9.19   9.19  323.78   14.10 1.03  0.12
  542.0  15.43  15.43  1.05  35.1   9.14   9.14  316.07   -0.87 1.03  0.13
  548.0  15.39  15.39  1.05  35.2   9.01   9.01  306.70  -12.99 1.03  0.13
  554.0  15.36  15.35  1.08  35.3   8.80   8.80  296.18  -22.87 1.03  0.13
  560.0  15.34  15.33  1.12  35.4   8.54   8.54  284.61  -30.80 1.03  0.13
  566.0  15.34  15.31  1.18  35.1   8.28   8.28  272.19  -36.92 1.03  0.13
  572.0  15.37  15.32  1.23  34.4   8.08   8.08  258.88  -41.51 1.03  0.13
  578.0  15.42  15.35  1.30  33.4   7.94   7.94  244.15  -44.62 1.03  0.13
  584.0  15.49  15.38  1.39  32.3   7.87   7.87  227.46  -45.40 1.03  0.13
  590.0  15.58  15.41  1.49  31.2   7.89   7.89  209.16  -42.48 1.03  0.13
  596.0  15.65  15.41  1.61  30.2   7.95   7.95  190.58  -34.90 1.03  0.13
  602.0  15.69  15.36  1.75  29.0   8.02   8.02  173.37  -22.67 1.03  0.13
  608.0  15.64  15.21  1.89  28.2   8.00   8.00  158.78   -6.55 1.03  0.13

Code:

CM
CM GH8n5 revB optimized for 2020 repack CH7-36 by HamiltonOTA
CM 59" height, 15.4db avg UHF, 10.0db avg VHF, 643" length of 1/4" Aluminium
CM source file nikiml's 7-51 with modified parameters and extra narods
CM covered by GPL v3 or later (http://www.gnu.org/licenses/gpl.txt)
CM see http://www.digitalhome.ca/forum/showpost.php?p=907404&postcount=2
CMD--OPT -s(470,6,24) -t(14.7,14.9) -s(174,6,8) -t(9.5,9)
CMD--OPT -F .2*ave_max_gain_diff+.8*ave_gain_diff
CMD--OPT --num-cores=3 -a10 --de-np=50 -r restart.log
CMD--EVAL --num-cores=3 -a10 -s(174,6,8) -s(470,6,24)
CE

SY radius=0.003175
SY narod_surf_spacing=0.0052217' 0.005, 0.012
SY narod_spacing=narod_surf_spacing + 2*radius

SY feed=0.03059384' 0.01, 0.1

SY b=0.1177044' 0.075, 0.25
SY a1=0.2040829' 0.07, 0.22
SY _G3=0.07576578' 0.006, 0.1
SY a2=a1+feed-_G3'this is to avoid self intersection since _G3 is to be > radius+2.5mm
SY a3=0.1399275' 0.07, 0.22



SY x=-0.07372312' -0.12, -0.05
SY g1=0.05330925' 0.005, 0.1
SY g2=0.06277531' 0.005, 0.1
SY g3=0.009596793' 0.005, 0.1
SY g4=0.09997928' 0.005, 0.1
SY l1=0.3044166' 0.1, 0.6
SY l2=0.4460162' 0.1, 0.6
SY l3=0.5464776' 0.5, 0.65
SY l4=0.2891017' 0.1, 0.65

SY n_h=0.07707939' -0.01, 0.14
SY n_f_dx=0
SY n_top_dy=-0.03240925' -0.06, 0.04
SY n_b_taper=0
SY n_top=_G3+a3+n_top_dy- n_b_taper/2'hat head size
SY n_f=x + n_f_dx'so the hat does not tilt behind the reflectors


SY narod_top = a1+a2+a3+narod_spacing+n_h'want to put 3 reflectors between z=very_small and z=narod_top +/- very_small,  1 reflectors around narod_top and 1 above it
SY dz3=0.1416767' 0.017, 0.18
SY above_below=-1
SY sign = abs(above_below)/above_below' may fail at 0

SY z3 = sign*dz3+narod_top
SY dz = z3/5

SY dz1=2.026288' 0.2, 2.5
SY z1 = (1+(dz1-1))*dz
SY dz2=1.937219' 0.2, 2.5
SY z2 = (3+(dz2-1))*dz


SY dz4=0.2994129' 0.05, 0.3
SY z4=z3+dz4

SY ay1=feed+a1
SY ay2=feed+a1-a2
SY ay3=feed+a1-a2+a3
SY ay4=feed+a1-a2+a3+b
SY az2=a1+a2
SY az3=a1+a2+a3
SY n_b_z=az3+narod_spacing
SY n_b_y1=n_top+n_b_taper
SY n_b_y2=n_b_y1+b

SY n_z_coef=0.929314' 0.5, 1.4
SY n_zm_coef=0.3695924' 0.2, 0.8
SY n_zsz=0.4067912' 0.3, 0.55
SY n_0sz=0.472273' 0.3, 0.55
SY n_msz=0.5985566' 0.3, 0.6
SY n_x_diff=0.288661' 0.15, 0.4
SY n_x = x-n_x_diff
SY n_z = narod_top*n_z_coef
SY n_mz= n_z*n_zm_coef


GW 1 15 0 feed 0 0 ay1 a1 radius'#00f
GW 2 11 0 ay1 a1 0 ay2 az2 radius'#00f
GW 3 11 0 ay2 az2 0 ay3 az3 radius'#00f
GW 4 6 0 ay3 az3 0 ay4 az3 radius'#00f
GW 5 17 x g1 z1 x l1+g1 z1 radius'#0f0
GW 6 23 x g2 z2 x l2+g2 z2 radius'#0f0
GW 7 29 x g3 z3 x l3+g3 z3 radius'#0f0
GW 8 15 x g4 z4 x l4+g4 z4 radius'#0f0
GW 11 6 n_f n_top n_b_z+n_h 0 n_b_y1 n_b_z radius'#000
GW 12 6 0 n_b_y1 n_b_z 0 n_b_y2 n_b_z radius'#000
GX    20    010
GW 13 19 n_f -n_top n_b_z+n_h n_f n_top n_b_z+n_h radius'#000
GW 14 63 n_x -n_msz n_mz n_x n_msz n_mz radius'#D00
GW 15 43 n_x -n_zsz n_z n_x n_zsz n_z radius'#D00
GX    40    001
GW 16 51 n_x -n_0sz 0 n_x n_0sz 0 radius'#D00
GW 100 3 0 -feed 0 0 feed 0 radius*.8675'#f40
GE    0
LD    5    0    0    0    24900000
GN    -1
EK
EX 0 100 2 0 1
FR    0    0    0    0    800    0
EN

hamiltonOTA2.0 · 2022-10-29T19:08:50-0400

GH10n5

GH10n5 model viewer

Code:

         --- Gain ---              -- Ratios -- -- Impedance --           
   Freq    Raw    Net   SWR BeamW    F/R    F/B    Real    Imag  AGT  corr
==========================================================================
  174.0  10.30  10.19  1.37  65.6   6.77   6.77  256.03  -75.98 1.00 -0.01
  180.0  10.49  10.44  1.24  67.7  11.64  11.64  353.44  -44.61 1.00 -0.01
  186.0  10.43  10.32  1.36  68.8  15.30  15.30  372.27  -72.67 1.00 -0.01
  192.0  10.37  10.27  1.35  69.3  15.66  16.67  354.08  -82.55 1.00 -0.01
  198.0  10.31  10.23  1.30  69.1  14.52  15.45  336.92  -73.79 1.00 -0.01
  204.0  10.22  10.16  1.24  68.4  13.30  13.30  330.98  -61.12 1.00 -0.01
  210.0  10.04   9.99  1.22  66.7  11.14  11.14  330.94  -55.73 1.00 -0.01
  216.0   9.67   9.63  1.21  63.9   9.16   9.16  323.46  -55.32 1.00 -0.01
  470.0  15.53  15.37  1.47  31.1   8.27   8.27  233.44   78.38 1.01  0.02
  476.0  15.67  15.51  1.46  31.7   8.25   8.25  242.49   85.96 1.01  0.02
  482.0  15.66  15.51  1.44  32.2   8.19   8.19  254.10   91.15 1.01  0.02
  488.0  15.61  15.47  1.43  32.4   8.22   8.22  266.96   95.31 1.01  0.02
  494.0  15.57  15.44  1.41  32.6   8.34   8.34  282.34   98.21 1.01  0.02
  500.0  15.57  15.45  1.38  32.8   8.52   8.52  300.72   98.04 1.01  0.02
  506.0  15.60  15.50  1.36  33.0   8.67   8.67  321.28   92.50 1.01  0.02
  512.0  15.66  15.57  1.32  33.4   8.72   8.72  341.44   79.55 1.01  0.02
  518.0  15.73  15.66  1.28  33.8   8.63   8.63  357.02   59.21 1.01  0.02
  524.0  15.78  15.72  1.25  34.1   8.52   8.52  364.64   34.46 1.01  0.02
  530.0  15.79  15.75  1.21  34.3   8.45   8.45  363.52    9.46 1.01  0.02
  536.0  15.78  15.75  1.19  34.5   8.40   8.40  355.15  -12.36 1.01  0.02
  542.0  15.79  15.77  1.17  34.3   8.39   8.39  342.15  -29.29 1.00  0.02
  548.0  15.82  15.80  1.17  34.0   8.37   8.37  326.82  -41.24 1.00  0.02
  554.0  15.87  15.85  1.18  33.4   8.35   8.35  310.65  -48.72 1.00  0.02
  560.0  15.94  15.91  1.19  32.7   8.31   8.31  294.59  -52.34 1.00  0.02
  566.0  15.99  15.95  1.22  32.1   8.22   8.22  279.38  -52.66 1.00  0.02
  572.0  16.04  15.99  1.24  31.3   8.09   8.09  265.62  -50.40 1.00  0.02
  578.0  16.06  16.00  1.27  30.5   7.89   7.89  253.70  -46.50 1.00  0.02
  584.0  16.04  15.97  1.30  29.7   7.61   7.61  243.59  -42.09 1.00  0.02
  590.0  16.00  15.92  1.33  28.7   7.29   7.29  234.54  -38.37 1.00  0.02
  596.0  15.92  15.81  1.38  27.7   6.92   6.92  224.85  -36.15 1.00  0.02
  602.0  15.83  15.68  1.45  26.6   6.58   6.58  211.63  -34.82 1.00  0.02
  608.0  15.73  15.51  1.58  25.7   6.36   6.36  192.55  -30.30 1.00  0.02

Code:

CM
CM GH10n5 revB optimized for 2020 repack CH7-36 by HamiltonOTA
CM 62" height, 15.7db avg UHF, 10.1db avg VHF, 700" length of 1/4" Aluminium
CM source file nikiml's 7-51 with modified parameters and extra narods
CM covered by GPL v3 or later (http://www.gnu.org/licenses/gpl.txt)
CM see http://www.digitalhome.ca/forum/showpost.php?p=907404&postcount=2
CMD--OPT -s(470,6,24) -t(15.5,15.5) -s(174,6,8) -t(9.5,9)
CMD--OPT -F .2*ave_max_gain_diff+.8*ave_gain_diff
CMD--OPT --num-cores=3 -a10 --de-np=50 -r restart.log
CMD--EVAL --num-cores=3 -a10 -s(174,6,8) -s(470,6,24)
CE

SY radius=0.003175
SY narod_surf_spacing=0.005029279' 0.005, 0.012
SY narod_spacing=narod_surf_spacing + 2*radius

SY feed=0.03790271' 0.01, 0.1

SY b=0.1180087' 0.075, 0.25
SY a1=0.1906158' 0.07, 0.22
SY _G3=0.0614313' 0.006, 0.1
SY a2=a1+feed-_G3'this is to avoid self intersection since _G3 is to be > radius+2.5mm
SY a3=0.1341017' 0.07, 0.22



SY x=-0.06927777' -0.12, -0.05
SY g1=0.04510313' 0.005, 0.1
SY g2=0.09740965' 0.005, 0.1
SY g3=0.005457396' 0.005, 0.1
SY g4=0.09906592' 0.005, 0.1
SY g5=0.02691218' 0.005, 0.1
SY l1=0.3010624' 0.1, 0.6
SY l2=0.4415209' 0.1, 0.6
SY l3=0.5275162' 0.1, 0.65
SY l4=0.500346' 0.5, 0.65
SY l5=0.2743462' 0.1, 0.65

SY n_h=0.08261116' -0.01, 0.14
SY n_f_dx=0
SY n_top_dy=-0.02457589' -0.06, 0.04
SY n_b_taper=0
SY n_top=_G3+a3+n_top_dy- n_b_taper/2'hat head size
SY n_f=x + n_f_dx'so the hat does not tilt behind the reflectors
SY narod_top = a1+a2+a3+narod_spacing+n_h'want to put 3 reflectors between z=very_small and z=narod_top +/- very_small,  1 reflectors around narod_top and 1 above it

SY dz4=0.05631314' 0.017, 0.08
SY above_below=0.8111317' -1, 1
SY sign = abs(above_below)/above_below'may fail at 0
SY z4 = sign*dz4+narod_top
SY dz = z4/7
SY dz1=2.060967' 0.2, 2.5
SY z1 = (1+(dz1-1))*dz
SY dz2=1.821998' 0.2, 2.5
SY z2 = (3+(dz2-1))*dz
SY dz3=0.5211693' 0.2, 2.5
SY z3 = (5+(dz3-1))*dz
SY dz5=0.1386886' 0.05, 0.3
SY z5=z4+dz5

SY ay1=feed+a1
SY ay2=feed+a1-a2
SY ay3=feed+a1-a2+a3
SY ay4=feed+a1-a2+a3+b
SY az2=a1+a2
SY az3=a1+a2+a3
SY n_b_z=az3+narod_spacing
SY n_b_y1=n_top+n_b_taper
SY n_b_y2=n_b_y1+b

SY n_z_coef=0.9520639' 0.5, 1.4
SY n_zm_coef=0.3943451' 0.2, 0.8
SY n_zsz=0.406296' 0.3, 0.6
SY n_0sz=0.5954103' 0.3, 0.6
SY n_msz=0.462421' 0.3, 0.6
SY n_x_diff=0.2939615' 0.15, 0.4
SY n_x = x-n_x_diff
SY n_z = narod_top*n_z_coef
SY n_mz= n_z*n_zm_coef

GW 1 15 0 feed 0 0 ay1 a1 radius'#00f
GW 2 13 0 ay1 a1 0 ay2 az2 radius'#00f
GW 3 11 0 ay2 az2 0 ay3 az3 radius'#00f
GW 4 6 0 ay3 az3 0 ay4 az3 radius'#00f
GW 5 17 x g1 z1 x l1+g1 z1 radius'#0f0
GW 6 23 x g2 z2 x l2+g2 z2 radius'#0f0
GW 7 29 x g3 z3 x l3+g3 z3 radius'#0f0
GW 8 27 x g4 z4 x l4+g4 z4 radius'#0f0
GW 8 15 x g5 z5 x l5+g5 z5 radius'#0f0
GW 11 6 n_f n_top n_b_z+n_h 0 n_b_y1 n_b_z radius'#000
GW 12 6 0 n_b_y1 n_b_z 0 n_b_y2 n_b_z radius'#000
GX    20    010
GW 13 19 n_f -n_top n_b_z+n_h n_f n_top n_b_z+n_h radius'#000
GW 14 49 n_x -n_msz n_mz n_x n_msz n_mz radius'#D00
GW 15 43 n_x -n_zsz n_z n_x n_zsz n_z radius'#D00
GX    40    001
GW 16 63 n_x -n_0sz 0 n_x n_0sz 0 radius'#D00
GW 100 5 0 -feed 0 0 feed 0 radius*.8675'#f40
GE    0
LD    5    0    0    0    24900000
GN    -1
EK
EX 0 100 3 0 1 0 0

FR    0    0    0    0    800    0
EN

hamiltonOTA2.0 · 2022-10-29T19:26:38-0400

Reserved

default_user · 2022-10-31T16:39:26-0400

hamiltonOTA2.0 Thank you so much for your work optimizing these for the ch7 - 36 spectrum and sharing to the group! Planning to build your GH6n5 in the near future. I built a GH10n3 a few years back that is working extremely well. BUT it's showing some wear and tear, plus revealing to me where I could have built it a little better. I'm thinking the GH6n5 will be less of a "windsail" than the GH10n3. Thanks again!

JayG7800 · 2022-11-01T08:14:26-0400

As a n00b to VHF/UHF antenna building, how would I get the build parameters and models for any of these? Do I take the code and plug them into a specific NEC app, or...?

default_user · 2022-11-01T09:51:59-0400

JayG7800 said:
As a n00b to VHF/UHF antenna building, how would I get the build parameters and models for any of these? Do I take the code and plug them into a specific NEC app, or...?

hamiltonOTA2.0 provided a link to the "model viewer". You should be able to hover your mouse over each segment of the antenna and it will show the dimension. What I did was print the front and side views of the "model view" and wrote the dimensions of each segment on the printed copy. As for the construction, Youtube has several videos of the construction process. I recommend watching several videos and develop your own method.

hamiltonOTA2.0 · 2022-11-08T17:53:58-0500

default_user said:
hamiltonOTA2.0 Thank you so much for your work optimizing these for the ch7 - 36 spectrum and sharing to the group! Planning to build your GH6n5 in the near future. I built a GH10n3 a few years back that is working extremely well. BUT it's showing some wear and tear, plus revealing to me where I could have built it a little better. I'm thinking the GH6n5 will be less of a "windsail" than the GH10n3. Thanks again!

Hopefully it doesnt matter too much. It's only 3 inches shorter compared to the old 7-51 GH10n3 and basically the same amount of aluminum. So I'd guess the wind resistance would be very similar. Pics would be nice when you get it built

Gray-Hoverman 2020 Repack Editions (CH7 to CH36)

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