Area 51 for Antenna Modelers & Builders (See Post #1) - Page 48 - Canadian TV, Computing and Home Theatre Forums

Xauto · 2009-11-26, 08:22 AM

bokakob: Have you looked at adding NAROD to make it a combo.

CM Experimental Antenna Design X-712
CE X707 with roof to help VHF-hi
GW 1 3 0.4 -1 0 0.4 1 0 0.024
GW 2 14 0 -7.9 0 0 -0.2 7.17 0.041
GW 3 13 0 -0.2 7.17 0 -7.3 14.3 0.041
GW 4 13 0 -7.3 14.3 0 -0.2 21.5 0.041
GW 5 14 0 -7.9 0 0 -0.2 -7.17 0.041
GW 6 13 0 -0.2 -7.17 0 -7.3 -14.3 0.041
GW 7 13 0 -7.3 -14.3 0 -0.2 -21.5 0.041
GW 8 14 0 7.9 0 0 0.2 7.17 0.041
GW 9 13 0 0.2 7.17 0 7.3 14.3 0.041
GW 10 13 0 7.3 14.3 0 0.2 21.5 0.041
GW 11 14 0 7.9 0 0 0.2 -7.17 0.041
GW 12 13 0 0.2 -7.17 0 7.3 -14.3 0.041
GW 13 13 0 7.3 -14.3 0 0.2 -21.5 0.041
GW 14 13 0 -0.2 -7.17 0 -10.5 -7.17 0.041
GW 15 13 0 -0.2 7.17 0 -10.5 7.17 0.041
GW 16 13 0 0.2 -7.17 0 10.5 -7.17 0.041
GW 17 13 0 0.2 7.17 0 10.5 7.17 0.041
GW 18 9 0 -0.2 -7.17 0.4 -1 0 0.041
GW 19 9 0 -0.2 7.17 0.4 -1 0 0.041
GW 20 9 0 0.2 -7.17 0.4 1 0 0.041
GW 21 9 0 0.2 7.17 0.4 1 0 0.041
GW 22 19 0 -7.3 14.3 0 7.3 14.3 0.041
GW 23 19 0 -7.9 0 0 7.9 0 0.041
GW 24 19 0 -7.3 -14.3 0 7.3 -14.3 0.041
GW 30 21 0 0 22.5 0 10.6 11.9 0.041
GW 31 21 0 0 22.5 0 -10.6 11.9 0.041
GW 32 21 0 0 -22.5 0 10.6 -11.9 0.041
GW 33 21 0 0 -22.5 0 -10.6 -11.9 0.041
GS 0 0 0.0254
GE 0
EK
LD 5 0 0 0 5.8e7 0
EX 0 1 2 0 1 0
GN -1
FR 0 1 0 0 584 0
XQ
EN

bokakob · 2009-11-26, 09:24 AM

I do not think this addition helps.

Xauto · 2009-11-26, 10:05 AM

It helps ch.7 thur 13. and yet leaves ch.14 thur 51 about the same.

300ohm · 2009-11-26, 10:46 AM

I almost forgot about the A roof NAROD, heh.

bokakob · 2009-11-26, 12:49 PM

Out of curiocity I stacked two X-707 "Naked Dragon" together. The result is very interesting, resulting in antenna being 3 meters long and having pretty flat gain from 12 dBi to 15.5 dBi without any reflectors. Obviously, there is something about this layout which works in multiple bays.
Reflectors would add another 3 dBi or so. Cheers and Happy Thanksgiving!

Here is the listing which is double the number of lines for X-707 "The Naked Dragon"
CM "Naked_Dragon" High-Gain HDTV Antenna
CM Copyright © 2009 BOKAKOB
CE
GW 2 9 0 -0.18 0 0 0.18 0 1.632e-3
GW 3 9 0 -0.18 0.36 0 0.18 0.36 1.632e-3
GW 4 5 0 -0.18 0.36 0 -2.5e-3 0.18 1.632e-3
GW 5 5 0 -0.18 0 0 -2.5e-3 0.18 1.632e-3
GW 6 5 0 0.18 0.36 0 2.49996e-3 0.18 1.632e-3
GW 7 5 0 0.18 0 0 2.49996e-3 0.18 1.632e-3
GW 8 7 0 0.2619984 0.18 0 2.5e-3 0.18 1.632e-3
GW 9 7 0 -0.262 0.18 0 -2.5e-3 0.18 1.632e-3
GW 10 9 0 -0.18 0.72 0 0.18 0.72 1.632e-3
GW 11 5 0 -0.18 0.72 0 -2.5e-3 0.54 1.632e-3
GW 12 5 0 -0.18 0.36 0 -2.5e-3 0.54 1.632e-3
GW 13 5 0 0.18 0.72 0 2.49996e-3 0.54 1.632e-3
GW 14 5 0 0.18 0.36 0 2.49996e-3 0.54 1.632e-3
GW 15 7 0 0.2619984 0.54 0 2.5e-3 0.54 1.632e-3
GW 16 7 0 -0.262 0.54 0 -2.5e-3 0.54 1.632e-3
GW 17 5 5.e-3 -0.025 0.36 5.e-3 -2.5e-3 0.535 1.632e-3
GW 18 5 5.e-3 0.025 0.36 5.e-3 2.49996e-3 0.535 1.632e-3
GW 19 1 0 -2.5e-3 0.54 5.e-3 -2.5e-3 0.535 1.632e-3
GW 20 1 0 2.49996e-3 0.54 5.e-3 2.49996e-3 0.535 1.632e-3
GW 21 5 5.e-3 -0.025 0.36 5.e-3 -2.5e-3 0.185 1.632e-3
GW 22 5 5.e-3 0.025 0.36 5.e-3 2.49996e-3 0.185 1.632e-3
GW 23 1 0 -2.5e-3 0.18 5.e-3 -2.5e-3 0.185 1.632e-3
GW 24 1 0 2.49996e-3 0.18 5.e-3 2.49996e-3 0.185 1.632e-3
GW 25 9 0 -0.18 1.08 0 0.18 1.08 1.632e-3
GW 26 5 0 -0.18 1.08 0 -2.5e-3 0.9 1.632e-3
GW 27 5 0 -0.18 0.72 0 -2.5e-3 0.9 1.632e-3
GW 28 5 0 0.18 1.08 0 2.49996e-3 0.9 1.632e-3
GW 29 5 0 0.18 0.72 0 2.49996e-3 0.9 1.632e-3
GW 30 7 0 0.2619984 0.9 0 2.5e-3 0.9 1.632e-3
GW 31 7 0 -0.262 0.9 0 -2.5e-3 0.9 1.632e-3
GW 32 9 0 -0.18 1.44 0 0.18 1.44 1.632e-3
GW 33 5 0 -0.18 1.44 0 -2.5e-3 1.26 1.632e-3
GW 34 5 0 -0.18 1.08 0 -2.5e-3 1.26 1.632e-3
GW 35 5 0 0.18 1.44 0 2.49996e-3 1.26 1.632e-3
GW 36 5 0 0.18 1.08 0 2.49996e-3 1.26 1.632e-3
GW 37 7 0 0.2619984 1.26 0 2.5e-3 1.26 1.632e-3
GW 38 7 0 -0.262 1.26 0 -2.5e-3 1.26 1.632e-3
GW 39 5 5.e-3 -0.025 1.08 5.e-3 -2.5e-3 1.255 1.632e-3
GW 40 5 5.e-3 0.025 1.08 5.e-3 2.49996e-3 1.255 1.632e-3
GW 41 1 0 -2.5e-3 1.26 5.e-3 -2.5e-3 1.255 1.632e-3
GW 42 1 0 2.49996e-3 1.26 5.e-3 2.49996e-3 1.255 1.632e-3
GW 43 5 5.e-3 -0.025 1.08 5.e-3 -2.5e-3 0.905 1.632e-3
GW 44 5 5.e-3 0.025 1.08 5.e-3 2.49996e-3 0.905 1.632e-3
GW 45 1 0 -2.5e-3 0.9 5.e-3 -2.5e-3 0.905 1.632e-3
GW 46 1 0 2.49996e-3 0.9 5.e-3 2.49996e-3 0.905 1.632e-3
GW 47 7 0.01 -0.025 0.72 0.01 -2.5e-3 1.075 1.632e-3
GW 48 7 0.01 0.025 0.72 0.01 2.5e-3 1.075 1.632e-3
GW 49 7 0.01 -0.025 0.72 0.01 -2.5e-3 0.365 1.632e-3
GW 50 7 0.01 0.025 0.72 0.01 2.5e-3 0.365 1.632e-3
GW 51 1 5.e-3 -0.025 1.08 0.01 -2.5e-3 1.075 1.632e-3
GW 52 1 5.e-3 0.025 1.08 0.01 2.5e-3 1.075 1.632e-3
GW 53 1 5.e-3 -0.025 0.36 0.01 -2.5e-3 0.365 1.632e-3
GW 54 1 5.e-3 0.025 0.36 0.01 2.5e-3 0.365 1.632e-3
GW 55 1 0.01 -0.025 0.72 0.015 -2.5e-3 0.715 3.1e-4
GW 56 1 0.015 2.5e-3 0.715 0.01 0.025 0.72 3.1e-4
GW 57 29 0.015 -0.025 0 0.015 -2.5e-3 0.715 1.632e-3
GW 58 29 0.015 0.025 0 0.015 2.5e-3 0.715 1.632e-3
GW 59 5 0 -0.18 1.44 0 -2.5e-3 1.62 1.632e-3
GW 60 5 0 0.18 1.44 0 2.49996e-3 1.62 1.632e-3
GW 61 9 0 0.18 -0.36 0 -0.18 -0.36 1.632e-3
GW 62 5 0 0.18 -0.36 0 2.5e-3 -0.18 1.632e-3
GW 63 5 0 0.18 0 0 2.5e-3 -0.18 1.632e-3
GW 64 5 0 -0.18 -0.36 0 -2.5e-3 -0.18 1.632e-3
GW 65 5 0 -0.18 0 0 -2.5e-3 -0.18 1.632e-3
GW 66 7 0 -0.2619984 -0.18 0 -2.5e-3 -0.18 1.632e-3
GW 67 7 0 0.262 -0.18 0 2.5e-3 -0.18 1.632e-3
GW 68 9 0 0.18 -0.72 0 -0.18 -0.72 1.632e-3
GW 69 5 0 0.18 -0.72 0 2.5e-3 -0.54 1.632e-3
GW 70 5 0 0.18 -0.36 0 2.5e-3 -0.54 1.632e-3
GW 71 5 0 -0.18 -0.72 0 -2.5e-3 -0.54 1.632e-3
GW 72 5 0 -0.18 -0.36 0 -2.5e-3 -0.54 1.632e-3
GW 73 7 0 -0.2619984 -0.54 0 -2.5e-3 -0.54 1.632e-3
GW 74 7 0 0.262 -0.54 0 2.5e-3 -0.54 1.632e-3
GW 75 5 5.e-3 0.025 -0.36 5.e-3 2.5e-3 -0.535 1.632e-3
GW 76 5 5.e-3 -0.025 -0.36 5.e-3 -2.5e-3 -0.535 1.632e-3
GW 77 1 0 2.5e-3 -0.54 5.e-3 2.5e-3 -0.535 1.632e-3
GW 78 1 0 -2.5e-3 -0.54 5.e-3 -2.5e-3 -0.535 1.632e-3
GW 79 5 5.e-3 0.025 -0.36 5.e-3 2.5e-3 -0.185 1.632e-3
GW 80 5 5.e-3 -0.025 -0.36 5.e-3 -2.5e-3 -0.185 1.632e-3
GW 81 1 0 2.5e-3 -0.18 5.e-3 2.5e-3 -0.185 1.632e-3
GW 82 1 0 -2.5e-3 -0.18 5.e-3 -2.5e-3 -0.185 1.632e-3
GW 83 9 0 0.18 -1.08 0 -0.18 -1.08 1.632e-3
GW 84 5 0 0.18 -1.08 0 2.5e-3 -0.9 1.632e-3
GW 85 5 0 0.18 -0.72 0 2.5e-3 -0.9 1.632e-3
GW 86 5 0 -0.18 -1.08 0 -2.5e-3 -0.9 1.632e-3
GW 87 5 0 -0.18 -0.72 0 -2.5e-3 -0.9 1.632e-3
GW 88 7 0 -0.2619984 -0.9 0 -2.5e-3 -0.9 1.632e-3
GW 89 7 0 0.262 -0.9 0 2.5e-3 -0.9 1.632e-3
GW 90 9 0 0.18 -1.44 0 -0.18 -1.44 1.632e-3
GW 91 5 0 0.18 -1.44 0 2.5e-3 -1.26 1.632e-3
GW 92 5 0 0.18 -1.08 0 2.5e-3 -1.26 1.632e-3
GW 93 5 0 -0.18 -1.44 0 -2.5e-3 -1.26 1.632e-3
GW 94 5 0 -0.18 -1.08 0 -2.5e-3 -1.26 1.632e-3
GW 95 7 0 -0.2619984 -1.26 0 -2.5e-3 -1.26 1.632e-3
GW 96 7 0 0.262 -1.26 0 2.5e-3 -1.26 1.632e-3
GW 97 5 5.e-3 0.025 -1.08 5.e-3 2.5e-3 -1.255 1.632e-3
GW 98 5 5.e-3 -0.025 -1.08 5.e-3 -2.5e-3 -1.255 1.632e-3
GW 99 1 0 2.5e-3 -1.26 5.e-3 2.5e-3 -1.255 1.632e-3
GW 100 1 0 -2.5e-3 -1.26 5.e-3 -2.5e-3 -1.255 1.632e-3
GW 101 5 5.e-3 0.025 -1.08 5.e-3 2.5e-3 -0.905 1.632e-3
GW 102 5 5.e-3 -0.025 -1.08 5.e-3 -2.5e-3 -0.905 1.632e-3
GW 103 1 0 2.5e-3 -0.9 5.e-3 2.5e-3 -0.905 1.632e-3
GW 104 1 0 -2.5e-3 -0.9 5.e-3 -2.5e-3 -0.905 1.632e-3
GW 105 7 0.01 0.025 -0.72 0.01 2.5e-3 -1.075 1.632e-3
GW 106 7 0.01 -0.025 -0.72 0.01 -2.5e-3 -1.075 1.632e-3
GW 107 7 0.01 0.025 -0.72 0.01 2.5e-3 -0.365 1.632e-3
GW 108 7 0.01 -0.025 -0.72 0.01 -2.5e-3 -0.365 1.632e-3
GW 109 1 5.e-3 0.025 -1.08 0.01 2.5e-3 -1.075 1.632e-3
GW 110 1 5.e-3 -0.025 -1.08 0.01 -2.5e-3 -1.075 1.632e-3
GW 111 1 5.e-3 0.025 -0.36 0.01 2.5e-3 -0.365 1.632e-3
GW 112 1 5.e-3 -0.025 -0.36 0.01 -2.5e-3 -0.365 1.632e-3
GW 113 1 0.01 0.025 -0.72 0.015 2.5e-3 -0.715 3.1e-4
GW 114 1 0.015 -2.5e-3 -0.715 0.01 -0.025 -0.72 3.1e-4
GW 115 29 0.015 0.025 0 0.015 2.5e-3 -0.715 1.632e-3
GW 116 29 0.015 -0.025 0 0.015 -2.5e-3 -0.715 1.632e-3
GW 117 5 0 0.18 -1.44 0 2.5e-3 -1.62 1.632e-3
GW 118 5 0 -0.18 -1.44 0 -2.5e-3 -1.62 1.632e-3
GW 1 3 0.015 -0.025 0 0.015 0.025 0 1.632e-3
GE 0
EK
EX 0 1 2 0 1 0
GN -1
FR 0 1 0 0 585 0

bokakob · 2009-11-26, 03:40 PM

Here is X-716 "Two Naked Dragons" with a mesh reflector made of a small galvanized chicken fence. It is big, it has good gain numbers, but the most interesting that with gain varying from 15 dbi to 18+ dbi this antenna has 60 degree horizontal sweep arc (+/- 3 dbi)!

Perhaps someone could use this as the starting point and really improve it. In this case this is going to be one biiiiiiig antenna.

RamKat · 2009-11-27, 05:21 PM

Hey Bokabob - you are on a roll!. I know you are looking at an antenna that has a wide azimuth gain lobe but how about ganging two single dragons side by side with a mesh reflector- similar to the CS2 vs CS4. There are some folks here that are looking for a 20dbi plus antenna at a single band (or relatively narrow band) where they could steer the beam past nearby towers - so a side by side may provide just that

Happy Thanksgiving to all the US folks

Vorg · 2009-11-28, 12:18 AM

Autox, problem with rods is right now I'm using it as an omni antenna. I'm watching for something that would have enough gain to use a combiner for 2-3 antennas. The dragon's in bi-directonal look interesting, but at 3m, a metal support mast running the height of it would be needed and I'm guessing that would impact the gain on the side of the mast. Also, at 3m I would be back to a single antenna array that then goes through splitters to several locations increasing the need for gain even more.

The way I have it now, is that shorted loop goes to the room with vdr computer through a 2 way splitter. One out goes to a converter box and the other goes to a dual tuner which would have an internal splitter of its own.

Xauto · 2009-11-28, 06:37 AM

Vorg; I'm also using a SBL, and it works for me about 99% of the time. About once in every two months I will get drop outs on Ch. 14. So I've been looking for a small antenna with 5dBi Net gain across Ch. 14 thur 45. If the SBL is made into an ellipse and adding one 13" rod 12" off center it may give me what I need in a 14.5"X16" size, or I'll make a hentenna for Ch 14 with an A B switch.

RamKat · 2009-11-28, 07:39 AM

Hi Xauto, Thanks for that small antenna in 702. I just realized that I have not comment on it. I will probably also be a candidate for the same construction method that Bokabob used where everything is soldered together.

Xauto · 2009-11-28, 09:01 AM

RamKat: If you go off to make X702. You need not put the step in the outer whiskers, that was done to stop the warnings from the modeling.

bokakob · 2009-11-30, 01:04 PM

Hello, as always I try to build my antenna out of a basic unit. Here is the basick building block for the "Dragon" series. It works pretty good by itself.
Salut!

CM "SPIDER" HDTV directional antenna
CM Copyright © 2009 BOKAKOB
CE
GW 2 5 -0.3 -0.17 -0.16685 -0.3 0 -0.16685 1.632e-3
GW 3 5 -0.3 -0.17 -0.16685 -0.3 -0.0125 0 1.632e-3
GW 4 5 -0.3 -0.17 0.16685 -0.3 -0.0125 0 1.632e-3
GW 5 5 -0.3 -0.17 0.16685 -0.3 0 0.16685 1.632e-3
GW 6 5 -0.3 -0.17 0.16685 -0.3 -2.35e-3 0.3337 1.632e-3
GW 7 5 -0.3 -0.245 0 -0.3 -0.0125 0 1.632e-3
GW 8 5 -0.3 0.17 -0.16685 -0.3 0 -0.16685 1.632e-3
GW 9 5 -0.3 0.17 -0.16685 -0.3 0.0125 0 1.632e-3
GW 10 5 -0.3 0.17 0.16685 -0.3 0.0125 0 1.632e-3
GW 11 5 -0.3 0.17 0.16685 -0.3 0 0.16685 1.632e-3
GW 12 5 -0.3 0.17 0.16685 -0.3 2.35e-3 0.3337 1.632e-3
GW 13 5 -0.3 0.2455 0 -0.3 0.0125 0 1.632e-3
GW 14 5 -0.3 0.17 -0.16685 -0.3 2.35e-3 -0.3337 1.632e-3
GW 15 5 -0.3 -0.17 -0.16685 -0.3 -2.35e-3 -0.3337 1.632e-3
GW 17 5 -0.4333 -0.1725 0.16685 -0.4333 -2.5e-3 0.16685 1.632e-3
GW 18 5 -0.4333 0.1725 0.16685 -0.4333 2.5e-3 0.16685 1.632e-3
GW 19 5 -0.4333 -0.1725 -0.16685 -0.4333 -2.5e-3 -0.16685 1.632e-3
GW 20 5 -0.4333 0.1725 -0.16685 -0.4333 2.5e-3 -0.16685 1.632e-3
GW 21 3 -0.4333 -0.1725 -0.16685 -0.4333 -0.1725 -0.083425 1.632e-3
GW 22 3 -0.4333 -0.1725 -0.083425 -0.4333 -0.1725 0 1.632e-3
GW 23 3 -0.4333 -0.1725 0.16685 -0.4333 -0.1725 0.083425 1.632e-3
GW 24 3 -0.4333 -0.1725 0.083425 -0.4333 -0.1725 0 1.632e-3
GW 25 3 -0.4333 -0.1725 0.16685 -0.4333 -0.1725 0.250275 1.632e-3
GW 26 3 -0.4333 -0.1725 0.250275 -0.4333 -0.1725 0.3337 1.632e-3
GW 27 3 -0.4333 -0.1725 -0.16685 -0.4333 -0.1725 -0.250275 1.632e-3
GW 28 3 -0.4333 -0.1725 -0.250275 -0.4333 -0.1725 -0.3337 1.632e-3
GW 29 5 -0.4333 -0.1725 0.16685 -0.4333 -0.3425 0.16685 1.632e-3
GW 30 5 -0.4333 -0.1725 0.3337 -0.4333 -0.3425 0.3337 1.632e-3
GW 31 5 -0.4333 -0.1725 0.250275 -0.4333 -0.3425 0.250275 1.632e-3
GW 32 5 -0.4333 -0.1725 0.083425 -0.4333 -0.3425 0.083425 1.632e-3
GW 33 5 -0.4333 -0.1725 0 -0.4333 -0.3425 0 1.632e-3
GW 34 5 -0.4333 -0.1725 -0.083425 -0.4333 -0.3425 -0.083425 1.632e-3
GW 35 5 -0.4333 -0.1725 -0.16685 -0.4333 -0.3425 -0.16685 1.632e-3
GW 36 5 -0.4333 -0.1725 -0.250275 -0.4333 -0.3425 -0.250275 1.632e-3
GW 37 5 -0.4333 -0.1725 -0.3337 -0.4333 -0.3425 -0.3337 1.632e-3
GW 38 5 -0.4333 -0.1725 0.3337 -0.4333 -2.5e-3 0.3337 1.632e-3
GW 39 5 -0.4333 0.1725 0.3337 -0.4333 2.5e-3 0.3337 1.632e-3
GW 40 5 -0.4333 -0.1725 0.250275 -0.4333 -2.5e-3 0.250275 1.632e-3
GW 41 5 -0.4333 0.1725 0.250275 -0.4333 2.5e-3 0.250275 1.632e-3
GW 42 5 -0.4333 -0.1725 0.083425 -0.4333 -2.5e-3 0.083425 1.632e-3
GW 43 5 -0.4333 0.1725 0.083425 -0.4333 2.5e-3 0.083425 1.632e-3
GW 44 5 -0.4333 -0.1725 0 -0.4333 -2.5e-3 0 1.632e-3
GW 45 5 -0.4333 0.1725 0 -0.4333 2.5e-3 0 1.632e-3
GW 46 5 -0.4333 -0.1725 -0.083425 -0.4333 -2.5e-3 -0.083425 1.632e-3
GW 47 5 -0.4333 0.1725 -0.083425 -0.4333 2.5e-3 -0.083425 1.632e-3
GW 48 5 -0.4333 -0.1725 -0.250275 -0.4333 -2.5e-3 -0.250275 1.632e-3
GW 49 5 -0.4333 0.1725 -0.250275 -0.4333 2.5e-3 -0.250275 1.632e-3
GW 50 5 -0.4333 -0.1725 -0.3337 -0.4333 -2.5e-3 -0.3337 1.632e-3
GW 51 5 -0.4333 0.1725 -0.3337 -0.4333 2.5e-3 -0.3337 1.632e-3
GW 52 3 -0.4333 0.1725 0.16685 -0.4333 0.1725 0.083425 1.632e-3
GW 53 3 -0.4333 0.1725 0.083425 -0.4333 0.1725 0 1.632e-3
GW 54 3 -0.4333 0.1725 -0.16685 -0.4333 0.1725 -0.083425 1.632e-3
GW 55 3 -0.4333 0.1725 -0.083425 -0.4333 0.1725 0 1.632e-3
GW 56 3 -0.4333 0.1725 -0.16685 -0.4333 0.1725 -0.250275 1.632e-3
GW 57 3 -0.4333 0.1725 -0.250275 -0.4333 0.1725 -0.3337 1.632e-3
GW 58 3 -0.4333 0.1725 0.16685 -0.4333 0.1725 0.250275 1.632e-3
GW 59 3 -0.4333 0.1725 0.250275 -0.4333 0.1725 0.3337 1.632e-3
GW 60 5 -0.4333 0.1725 -0.16685 -0.4333 0.3425 -0.16685 1.632e-3
GW 61 5 -0.4333 0.1725 -0.3337 -0.4333 0.3425 -0.3337 1.632e-3
GW 62 5 -0.4333 0.1725 -0.250275 -0.4333 0.3425 -0.250275 1.632e-3
GW 63 5 -0.4333 0.1725 -0.083425 -0.4333 0.3425 -0.083425 1.632e-3
GW 64 5 -0.4333 0.1725 0 -0.4333 0.3425 0 1.632e-3
GW 65 5 -0.4333 0.1725 0.083425 -0.4333 0.3425 0.083425 1.632e-3
GW 66 5 -0.4333 0.1725 0.16685 -0.4333 0.3425 0.16685 1.632e-3
GW 67 5 -0.4333 0.1725 0.250275 -0.4333 0.3425 0.250275 1.632e-3
GW 68 5 -0.4333 0.1725 0.3337 -0.4333 0.3425 0.3337 1.632e-3
GW 69 3 -0.4333 -0.1725 0.3337 -0.4333 -0.1725 0.417125 1.632e-3
GW 70 5 -0.4333 -0.1725 0.417125 -0.4333 -0.3425 0.417125 1.632e-3
GW 71 5 -0.4333 -0.1725 0.417125 -0.4333 -2.5e-3 0.417125 1.632e-3
GW 72 5 -0.4333 0.1725 0.417125 -0.4333 2.5e-3 0.417125 1.632e-3
GW 73 3 -0.4333 0.1725 0.3337 -0.4333 0.1725 0.417125 1.632e-3
GW 74 5 -0.4333 0.1725 0.417125 -0.4333 0.3425 0.417125 1.632e-3
GW 75 3 -0.4333 -0.1725 -0.3337 -0.4333 -0.1725 -0.417125 1.632e-3
GW 76 5 -0.4333 -0.1725 -0.417125 -0.4333 -0.3425 -0.417125 1.632e-3
GW 77 5 -0.4333 -0.1725 -0.417125 -0.4333 -2.5e-3 -0.417125 1.632e-3
GW 78 5 -0.4333 0.1725 -0.417125 -0.4333 2.5e-3 -0.417125 1.632e-3
GW 79 3 -0.4333 0.1725 -0.3337 -0.4333 0.1725 -0.417125 1.632e-3
GW 80 5 -0.4333 0.1725 -0.417125 -0.4333 0.3425 -0.417125 1.632e-3
GW 1 1 -0.3 -0.0125 0 -0.3 0.0125 0 1.4e-4
GE 0
EK
EX 0 1 1 0 1 0
GN -1
FR 0 1 0 0 585 0
LD 5 0 0 0 5.8e7 0
RP 0 73 73 1001 -90. 90. 5.0 5.0 10000.0

snowman53 · 2009-12-01, 01:20 AM

I like this antenna's fat beam width!

I modified your 2 Bay BiQuad "SPIDER" model X-723 and and improved the gain some what. Changed the reflector to 28" wide x 36" high (4"x2" grid) 3.5" behind the active elements.

Code:

[MHz]   Tot-gain        SWR     Eff Gain
465     11.84           2.33    11.08
481     11.89           1.66    11.61
497     11.94           1.33    11.85
513     12.01           1.13    11.99
529     12.09           1.04    12.09
545     12.20           1.15    12.18
561     12.33           1.29    12.26
577     12.47           1.44    12.33
593     12.62           1.60    12.38
609     12.79           1.78    12.43
625     12.97           1.99    12.46
641     13.15           2.24    12.46
657     13.32           2.53    12.42
673     13.47           2.86    12.32
689     13.58           3.25    12.15
705     13.59           3.68    11.86

I replaced the original reflector line 17 to 80 with:

SY Refl_Dist=-0.3889
.........
SM 7 18 Refl_Dist -0.3556 -0.4572 Refl_Dist 0.3556 -0.4572
SC 0 -1 Refl_Dist 0.3556 0.4572

bokakob · 2009-12-02, 10:30 PM

I always ask if someone could improve any kind of antenna I could think of. It happened that you increased the gain by 1 dB across the spectrum -- nice!

I am toying with a wire layout exactly the size of GH antenna (60cm x 80cm) and giving about twice sensitivity at the fringes, low channels to be correct. Maybe someone with more knowledge could improve that too.

Thanks again -- regards...

snowman53 · 2009-12-03, 12:34 AM

I continued to play around with the 2 Bay BiQuad from X-724 (original model X-723) and managed to gain another ~1.5 db at the top end (at the expense of a small drop off at the very low end).

Code:

MHz	Tot-gain	SWR	Eff-Gain
465	11.18		2.02	10.65
481	12.16		1.46	12.01
497	12.54		1.24	12.49
513	12.74		1.17	12.71
529	12.88		1.16	12.85
545	13.01		1.18	12.98
561	13.17		1.23	13.12
577	13.34		1.30	13.27
593	13.53		1.39	13.41
609	13.74		1.51	13.56
625	13.97		1.67	13.69
641	14.20		1.86	13.79
657	14.42		2.10	13.84
673	14.58		2.39	13.78
689	14.60		2.71	13.57
705	14.35		3.01	13.09

I noticed that the internal horiz elements were out of phase, so I eliminated them (lines 2,4, 7 & 8 below) and added new external horiz elements at the top & bottom (lines 16-18 below).

Here is the variable driven model I ended up with:

Code:

CM 2 Bay BiQuad 4x2 Mesh Refl @ 3.5" Variable Driven
CM Removed Internal Horiz, added Top & Bot Horiz
CM Original Model www.digitalhome.ca/forum/showthread.php?t=105660&page=49 Post 723
SY Refl_Dist=-0.0889
SY X_Zero=0
SY Y_Zero=0
SY Z_Zero=0
SY Y_Apex=0.1702
SY Z_Apex=0.1669
SY Y_Ctr_Gap=0.0024
SY Y_Source_Gap=0.0101
SY Y_Horiz=0.2455
SY Wire_R=0.0016
SY Refl_W=.7112
SY Refl_H=.9144
CE
GW	1	5	X_Zero	-Y_Ctr_Gap-Y_Source_Gap+Y_Zero	Z_Zero	X_Zero	Y_Ctr_Gap+Y_Source_Gap+Y_Zero	Z_Zero	0.00045
CM GW	2	5	X_Zero	-Y_Apex+Y_Zero	-Z_Apex+Z_Zero	X_Zero	Y_Zero	-Z_Apex+Z_Zero	Wire_R
GW	3	5	X_Zero	-Y_Apex+Y_Zero	-Z_Apex+Z_Zero	X_Zero	-Y_Ctr_Gap-Y_Source_Gap+Y_Zero	Z_Zero	Wire_R
CM GW	4	5	X_Zero	Y_Apex+Y_Zero	Z_Apex+Z_Zero	X_Zero	Y_Zero	Z_Apex+Z_Zero	Wire_R
GW	5	5	X_Zero	Y_Apex+Y_Zero	Z_Apex+Z_Zero	X_Zero	Y_Ctr_Gap+Y_Zero	2*Z_Apex+Z_Zero	Wire_R
GW	6	5	X_Zero	Y_Horiz+Y_Zero	Z_Zero	X_Zero	Y_Ctr_Gap+Y_Source_Gap+Y_Zero	Z_Zero	Wire_R
CM GW	7	5	X_Zero	Y_Apex+Y_Zero	-Z_Apex+Z_Zero	X_Zero	Y_Zero	-Z_Apex+Z_Zero	Wire_R
CM GW	8	5	X_Zero	-Y_Apex+Y_Zero	Z_Apex+Z_Zero	X_Zero	Y_Zero	Z_Apex+Z_Zero	Wire_R
GW	9	5	X_Zero	-Y_Apex+Y_Zero	Z_Apex+Z_Zero	X_Zero	-Y_Ctr_Gap+Y_Zero	2*Z_Apex+Z_Zero	Wire_R
GW	10	5	X_Zero	Y_Apex+Y_Zero	-Z_Apex+Z_Zero	X_Zero	Y_Ctr_Gap+Y_Zero	-2*Z_Apex+Z_Zero	Wire_R
GW	11	5	X_Zero	-Y_Apex+Y_Zero	-Z_Apex+Z_Zero	X_Zero	-Y_Ctr_Gap+Y_Zero	-2*Z_Apex+Z_Zero	Wire_R
GW	12	5	X_Zero	Y_Apex+Y_Zero	Z_Apex+Z_Zero	X_Zero	Y_Ctr_Gap+Y_Source_Gap+Y_Zero	Z_Zero	Wire_R
GW	13	5	X_Zero	-Y_Horiz+Y_Zero	Z_Zero	X_Zero	-Y_Ctr_Gap-Y_Source_Gap+Y_Zero	Z_Zero	Wire_R
GW	14	5	X_Zero	-Y_Apex+Y_Zero	Z_Apex+Z_Zero	X_Zero	-Y_Ctr_Gap-Y_Source_Gap+Y_Zero	Z_Zero	Wire_R
GW	15	5	X_Zero	Y_Apex+Y_Zero	-Z_Apex+Z_Zero	X_Zero	Y_Ctr_Gap+Y_Source_Gap+Y_Zero	Z_Zero	Wire_R
GW	16	5	X_Zero	Y_Horiz+Y_Zero	2*Z_Apex+Z_Zero	X_Zero	Y_Ctr_Gap+Y_Zero	2*Z_Apex+Z_Zero	Wire_R
GW	17	5	X_Zero	-Y_Horiz+Y_Zero	2*Z_Apex+Z_Zero	X_Zero	-Y_Ctr_Gap+Y_Zero	2*Z_Apex+Z_Zero	Wire_R
GW	18	5	X_Zero	Y_Horiz+Y_Zero	-2*Z_Apex+Z_Zero	X_Zero	Y_Ctr_Gap+Y_Zero	-2*Z_Apex+Z_Zero	Wire_R
GW	19	5	X_Zero	-Y_Horiz+Y_Zero	-2*Z_Apex+Z_Zero	X_Zero	-Y_Ctr_Gap+Y_Zero	-2*Z_Apex+Z_Zero	Wire_R
CM 4 x 2 Mesh Reflector
SM 7 18 Refl_Dist -Refl_W/2+Y_Zero -Refl_H/2+Z_Zero Refl_Dist Refl_W/2+Y_Zero -Refl_H/2+Z_Zero
SC 0 -1 Refl_Dist Refl_W/2+Y_Zero Refl_H/2+Z_Zero
GE 0
EK
GN	-1
EK
EX	0	1	3	0	1	0		
FR	0	16	0	0	465	16
RP	0	46	91	1001	-90	0	4	2	0	
EN

2009-11-26, 10:46 AM	#709
300ohm Veteran Join Date: Mar 2008 Location: Somewhere in Delaware on the flat side Posts: 7,011	I almost forgot about the A roof NAROD, heh. __________________ My builds/plans (not the latest models) are located here.

2009-11-26, 12:49 PM	#710
bokakob Join Date: Aug 2009 Posts: 123	X-716 "Two Naked Dragons" High Gain HDTV Antenna Out of curiocity I stacked two X-707 "Naked Dragon" together. The result is very interesting, resulting in antenna being 3 meters long and having pretty flat gain from 12 dBi to 15.5 dBi without any reflectors. Obviously, there is something about this layout which works in multiple bays. Reflectors would add another 3 dBi or so. Cheers and Happy Thanksgiving! Here is the listing which is double the number of lines for X-707 "The Naked Dragon" CM "Naked_Dragon" High-Gain HDTV Antenna CM Copyright © 2009 BOKAKOB CE GW 2 9 0 -0.18 0 0 0.18 0 1.632e-3 GW 3 9 0 -0.18 0.36 0 0.18 0.36 1.632e-3 GW 4 5 0 -0.18 0.36 0 -2.5e-3 0.18 1.632e-3 GW 5 5 0 -0.18 0 0 -2.5e-3 0.18 1.632e-3 GW 6 5 0 0.18 0.36 0 2.49996e-3 0.18 1.632e-3 GW 7 5 0 0.18 0 0 2.49996e-3 0.18 1.632e-3 GW 8 7 0 0.2619984 0.18 0 2.5e-3 0.18 1.632e-3 GW 9 7 0 -0.262 0.18 0 -2.5e-3 0.18 1.632e-3 GW 10 9 0 -0.18 0.72 0 0.18 0.72 1.632e-3 GW 11 5 0 -0.18 0.72 0 -2.5e-3 0.54 1.632e-3 GW 12 5 0 -0.18 0.36 0 -2.5e-3 0.54 1.632e-3 GW 13 5 0 0.18 0.72 0 2.49996e-3 0.54 1.632e-3 GW 14 5 0 0.18 0.36 0 2.49996e-3 0.54 1.632e-3 GW 15 7 0 0.2619984 0.54 0 2.5e-3 0.54 1.632e-3 GW 16 7 0 -0.262 0.54 0 -2.5e-3 0.54 1.632e-3 GW 17 5 5.e-3 -0.025 0.36 5.e-3 -2.5e-3 0.535 1.632e-3 GW 18 5 5.e-3 0.025 0.36 5.e-3 2.49996e-3 0.535 1.632e-3 GW 19 1 0 -2.5e-3 0.54 5.e-3 -2.5e-3 0.535 1.632e-3 GW 20 1 0 2.49996e-3 0.54 5.e-3 2.49996e-3 0.535 1.632e-3 GW 21 5 5.e-3 -0.025 0.36 5.e-3 -2.5e-3 0.185 1.632e-3 GW 22 5 5.e-3 0.025 0.36 5.e-3 2.49996e-3 0.185 1.632e-3 GW 23 1 0 -2.5e-3 0.18 5.e-3 -2.5e-3 0.185 1.632e-3 GW 24 1 0 2.49996e-3 0.18 5.e-3 2.49996e-3 0.185 1.632e-3 GW 25 9 0 -0.18 1.08 0 0.18 1.08 1.632e-3 GW 26 5 0 -0.18 1.08 0 -2.5e-3 0.9 1.632e-3 GW 27 5 0 -0.18 0.72 0 -2.5e-3 0.9 1.632e-3 GW 28 5 0 0.18 1.08 0 2.49996e-3 0.9 1.632e-3 GW 29 5 0 0.18 0.72 0 2.49996e-3 0.9 1.632e-3 GW 30 7 0 0.2619984 0.9 0 2.5e-3 0.9 1.632e-3 GW 31 7 0 -0.262 0.9 0 -2.5e-3 0.9 1.632e-3 GW 32 9 0 -0.18 1.44 0 0.18 1.44 1.632e-3 GW 33 5 0 -0.18 1.44 0 -2.5e-3 1.26 1.632e-3 GW 34 5 0 -0.18 1.08 0 -2.5e-3 1.26 1.632e-3 GW 35 5 0 0.18 1.44 0 2.49996e-3 1.26 1.632e-3 GW 36 5 0 0.18 1.08 0 2.49996e-3 1.26 1.632e-3 GW 37 7 0 0.2619984 1.26 0 2.5e-3 1.26 1.632e-3 GW 38 7 0 -0.262 1.26 0 -2.5e-3 1.26 1.632e-3 GW 39 5 5.e-3 -0.025 1.08 5.e-3 -2.5e-3 1.255 1.632e-3 GW 40 5 5.e-3 0.025 1.08 5.e-3 2.49996e-3 1.255 1.632e-3 GW 41 1 0 -2.5e-3 1.26 5.e-3 -2.5e-3 1.255 1.632e-3 GW 42 1 0 2.49996e-3 1.26 5.e-3 2.49996e-3 1.255 1.632e-3 GW 43 5 5.e-3 -0.025 1.08 5.e-3 -2.5e-3 0.905 1.632e-3 GW 44 5 5.e-3 0.025 1.08 5.e-3 2.49996e-3 0.905 1.632e-3 GW 45 1 0 -2.5e-3 0.9 5.e-3 -2.5e-3 0.905 1.632e-3 GW 46 1 0 2.49996e-3 0.9 5.e-3 2.49996e-3 0.905 1.632e-3 GW 47 7 0.01 -0.025 0.72 0.01 -2.5e-3 1.075 1.632e-3 GW 48 7 0.01 0.025 0.72 0.01 2.5e-3 1.075 1.632e-3 GW 49 7 0.01 -0.025 0.72 0.01 -2.5e-3 0.365 1.632e-3 GW 50 7 0.01 0.025 0.72 0.01 2.5e-3 0.365 1.632e-3 GW 51 1 5.e-3 -0.025 1.08 0.01 -2.5e-3 1.075 1.632e-3 GW 52 1 5.e-3 0.025 1.08 0.01 2.5e-3 1.075 1.632e-3 GW 53 1 5.e-3 -0.025 0.36 0.01 -2.5e-3 0.365 1.632e-3 GW 54 1 5.e-3 0.025 0.36 0.01 2.5e-3 0.365 1.632e-3 GW 55 1 0.01 -0.025 0.72 0.015 -2.5e-3 0.715 3.1e-4 GW 56 1 0.015 2.5e-3 0.715 0.01 0.025 0.72 3.1e-4 GW 57 29 0.015 -0.025 0 0.015 -2.5e-3 0.715 1.632e-3 GW 58 29 0.015 0.025 0 0.015 2.5e-3 0.715 1.632e-3 GW 59 5 0 -0.18 1.44 0 -2.5e-3 1.62 1.632e-3 GW 60 5 0 0.18 1.44 0 2.49996e-3 1.62 1.632e-3 GW 61 9 0 0.18 -0.36 0 -0.18 -0.36 1.632e-3 GW 62 5 0 0.18 -0.36 0 2.5e-3 -0.18 1.632e-3 GW 63 5 0 0.18 0 0 2.5e-3 -0.18 1.632e-3 GW 64 5 0 -0.18 -0.36 0 -2.5e-3 -0.18 1.632e-3 GW 65 5 0 -0.18 0 0 -2.5e-3 -0.18 1.632e-3 GW 66 7 0 -0.2619984 -0.18 0 -2.5e-3 -0.18 1.632e-3 GW 67 7 0 0.262 -0.18 0 2.5e-3 -0.18 1.632e-3 GW 68 9 0 0.18 -0.72 0 -0.18 -0.72 1.632e-3 GW 69 5 0 0.18 -0.72 0 2.5e-3 -0.54 1.632e-3 GW 70 5 0 0.18 -0.36 0 2.5e-3 -0.54 1.632e-3 GW 71 5 0 -0.18 -0.72 0 -2.5e-3 -0.54 1.632e-3 GW 72 5 0 -0.18 -0.36 0 -2.5e-3 -0.54 1.632e-3 GW 73 7 0 -0.2619984 -0.54 0 -2.5e-3 -0.54 1.632e-3 GW 74 7 0 0.262 -0.54 0 2.5e-3 -0.54 1.632e-3 GW 75 5 5.e-3 0.025 -0.36 5.e-3 2.5e-3 -0.535 1.632e-3 GW 76 5 5.e-3 -0.025 -0.36 5.e-3 -2.5e-3 -0.535 1.632e-3 GW 77 1 0 2.5e-3 -0.54 5.e-3 2.5e-3 -0.535 1.632e-3 GW 78 1 0 -2.5e-3 -0.54 5.e-3 -2.5e-3 -0.535 1.632e-3 GW 79 5 5.e-3 0.025 -0.36 5.e-3 2.5e-3 -0.185 1.632e-3 GW 80 5 5.e-3 -0.025 -0.36 5.e-3 -2.5e-3 -0.185 1.632e-3 GW 81 1 0 2.5e-3 -0.18 5.e-3 2.5e-3 -0.185 1.632e-3 GW 82 1 0 -2.5e-3 -0.18 5.e-3 -2.5e-3 -0.185 1.632e-3 GW 83 9 0 0.18 -1.08 0 -0.18 -1.08 1.632e-3 GW 84 5 0 0.18 -1.08 0 2.5e-3 -0.9 1.632e-3 GW 85 5 0 0.18 -0.72 0 2.5e-3 -0.9 1.632e-3 GW 86 5 0 -0.18 -1.08 0 -2.5e-3 -0.9 1.632e-3 GW 87 5 0 -0.18 -0.72 0 -2.5e-3 -0.9 1.632e-3 GW 88 7 0 -0.2619984 -0.9 0 -2.5e-3 -0.9 1.632e-3 GW 89 7 0 0.262 -0.9 0 2.5e-3 -0.9 1.632e-3 GW 90 9 0 0.18 -1.44 0 -0.18 -1.44 1.632e-3 GW 91 5 0 0.18 -1.44 0 2.5e-3 -1.26 1.632e-3 GW 92 5 0 0.18 -1.08 0 2.5e-3 -1.26 1.632e-3 GW 93 5 0 -0.18 -1.44 0 -2.5e-3 -1.26 1.632e-3 GW 94 5 0 -0.18 -1.08 0 -2.5e-3 -1.26 1.632e-3 GW 95 7 0 -0.2619984 -1.26 0 -2.5e-3 -1.26 1.632e-3 GW 96 7 0 0.262 -1.26 0 2.5e-3 -1.26 1.632e-3 GW 97 5 5.e-3 0.025 -1.08 5.e-3 2.5e-3 -1.255 1.632e-3 GW 98 5 5.e-3 -0.025 -1.08 5.e-3 -2.5e-3 -1.255 1.632e-3 GW 99 1 0 2.5e-3 -1.26 5.e-3 2.5e-3 -1.255 1.632e-3 GW 100 1 0 -2.5e-3 -1.26 5.e-3 -2.5e-3 -1.255 1.632e-3 GW 101 5 5.e-3 0.025 -1.08 5.e-3 2.5e-3 -0.905 1.632e-3 GW 102 5 5.e-3 -0.025 -1.08 5.e-3 -2.5e-3 -0.905 1.632e-3 GW 103 1 0 2.5e-3 -0.9 5.e-3 2.5e-3 -0.905 1.632e-3 GW 104 1 0 -2.5e-3 -0.9 5.e-3 -2.5e-3 -0.905 1.632e-3 GW 105 7 0.01 0.025 -0.72 0.01 2.5e-3 -1.075 1.632e-3 GW 106 7 0.01 -0.025 -0.72 0.01 -2.5e-3 -1.075 1.632e-3 GW 107 7 0.01 0.025 -0.72 0.01 2.5e-3 -0.365 1.632e-3 GW 108 7 0.01 -0.025 -0.72 0.01 -2.5e-3 -0.365 1.632e-3 GW 109 1 5.e-3 0.025 -1.08 0.01 2.5e-3 -1.075 1.632e-3 GW 110 1 5.e-3 -0.025 -1.08 0.01 -2.5e-3 -1.075 1.632e-3 GW 111 1 5.e-3 0.025 -0.36 0.01 2.5e-3 -0.365 1.632e-3 GW 112 1 5.e-3 -0.025 -0.36 0.01 -2.5e-3 -0.365 1.632e-3 GW 113 1 0.01 0.025 -0.72 0.015 2.5e-3 -0.715 3.1e-4 GW 114 1 0.015 -2.5e-3 -0.715 0.01 -0.025 -0.72 3.1e-4 GW 115 29 0.015 0.025 0 0.015 2.5e-3 -0.715 1.632e-3 GW 116 29 0.015 -0.025 0 0.015 -2.5e-3 -0.715 1.632e-3 GW 117 5 0 0.18 -1.44 0 2.5e-3 -1.62 1.632e-3 GW 118 5 0 -0.18 -1.44 0 -2.5e-3 -1.62 1.632e-3 GW 1 3 0.015 -0.025 0 0.015 0.025 0 1.632e-3 GE 0 EK EX 0 1 2 0 1 0 GN -1 FR 0 1 0 0 585 0 Last edited by stampeder; 2010-03-04 at 01:27 PM.

2009-11-26, 03:40 PM	#711
bokakob Join Date: Aug 2009 Posts: 123	X-716 "Two Naked Dragons" with chicken mesh reflector Here is X-716 "Two Naked Dragons" with a mesh reflector made of a small galvanized chicken fence. It is big, it has good gain numbers, but the most interesting that with gain varying from 15 dbi to 18+ dbi this antenna has 60 degree horizontal sweep arc (+/- 3 dbi)! Perhaps someone could use this as the starting point and really improve it. In this case this is going to be one biiiiiiig antenna. Last edited by stampeder; 2010-03-04 at 01:27 PM.

2009-11-30, 01:04 PM	#717
bokakob Join Date: Aug 2009 Posts: 123	X-723 "Spider" - Basic Building Unit for "Dragon" Series Hello, as always I try to build my antenna out of a basic unit. Here is the basick building block for the "Dragon" series. It works pretty good by itself. Salut! CM "SPIDER" HDTV directional antenna CM Copyright © 2009 BOKAKOB CE GW 2 5 -0.3 -0.17 -0.16685 -0.3 0 -0.16685 1.632e-3 GW 3 5 -0.3 -0.17 -0.16685 -0.3 -0.0125 0 1.632e-3 GW 4 5 -0.3 -0.17 0.16685 -0.3 -0.0125 0 1.632e-3 GW 5 5 -0.3 -0.17 0.16685 -0.3 0 0.16685 1.632e-3 GW 6 5 -0.3 -0.17 0.16685 -0.3 -2.35e-3 0.3337 1.632e-3 GW 7 5 -0.3 -0.245 0 -0.3 -0.0125 0 1.632e-3 GW 8 5 -0.3 0.17 -0.16685 -0.3 0 -0.16685 1.632e-3 GW 9 5 -0.3 0.17 -0.16685 -0.3 0.0125 0 1.632e-3 GW 10 5 -0.3 0.17 0.16685 -0.3 0.0125 0 1.632e-3 GW 11 5 -0.3 0.17 0.16685 -0.3 0 0.16685 1.632e-3 GW 12 5 -0.3 0.17 0.16685 -0.3 2.35e-3 0.3337 1.632e-3 GW 13 5 -0.3 0.2455 0 -0.3 0.0125 0 1.632e-3 GW 14 5 -0.3 0.17 -0.16685 -0.3 2.35e-3 -0.3337 1.632e-3 GW 15 5 -0.3 -0.17 -0.16685 -0.3 -2.35e-3 -0.3337 1.632e-3 GW 17 5 -0.4333 -0.1725 0.16685 -0.4333 -2.5e-3 0.16685 1.632e-3 GW 18 5 -0.4333 0.1725 0.16685 -0.4333 2.5e-3 0.16685 1.632e-3 GW 19 5 -0.4333 -0.1725 -0.16685 -0.4333 -2.5e-3 -0.16685 1.632e-3 GW 20 5 -0.4333 0.1725 -0.16685 -0.4333 2.5e-3 -0.16685 1.632e-3 GW 21 3 -0.4333 -0.1725 -0.16685 -0.4333 -0.1725 -0.083425 1.632e-3 GW 22 3 -0.4333 -0.1725 -0.083425 -0.4333 -0.1725 0 1.632e-3 GW 23 3 -0.4333 -0.1725 0.16685 -0.4333 -0.1725 0.083425 1.632e-3 GW 24 3 -0.4333 -0.1725 0.083425 -0.4333 -0.1725 0 1.632e-3 GW 25 3 -0.4333 -0.1725 0.16685 -0.4333 -0.1725 0.250275 1.632e-3 GW 26 3 -0.4333 -0.1725 0.250275 -0.4333 -0.1725 0.3337 1.632e-3 GW 27 3 -0.4333 -0.1725 -0.16685 -0.4333 -0.1725 -0.250275 1.632e-3 GW 28 3 -0.4333 -0.1725 -0.250275 -0.4333 -0.1725 -0.3337 1.632e-3 GW 29 5 -0.4333 -0.1725 0.16685 -0.4333 -0.3425 0.16685 1.632e-3 GW 30 5 -0.4333 -0.1725 0.3337 -0.4333 -0.3425 0.3337 1.632e-3 GW 31 5 -0.4333 -0.1725 0.250275 -0.4333 -0.3425 0.250275 1.632e-3 GW 32 5 -0.4333 -0.1725 0.083425 -0.4333 -0.3425 0.083425 1.632e-3 GW 33 5 -0.4333 -0.1725 0 -0.4333 -0.3425 0 1.632e-3 GW 34 5 -0.4333 -0.1725 -0.083425 -0.4333 -0.3425 -0.083425 1.632e-3 GW 35 5 -0.4333 -0.1725 -0.16685 -0.4333 -0.3425 -0.16685 1.632e-3 GW 36 5 -0.4333 -0.1725 -0.250275 -0.4333 -0.3425 -0.250275 1.632e-3 GW 37 5 -0.4333 -0.1725 -0.3337 -0.4333 -0.3425 -0.3337 1.632e-3 GW 38 5 -0.4333 -0.1725 0.3337 -0.4333 -2.5e-3 0.3337 1.632e-3 GW 39 5 -0.4333 0.1725 0.3337 -0.4333 2.5e-3 0.3337 1.632e-3 GW 40 5 -0.4333 -0.1725 0.250275 -0.4333 -2.5e-3 0.250275 1.632e-3 GW 41 5 -0.4333 0.1725 0.250275 -0.4333 2.5e-3 0.250275 1.632e-3 GW 42 5 -0.4333 -0.1725 0.083425 -0.4333 -2.5e-3 0.083425 1.632e-3 GW 43 5 -0.4333 0.1725 0.083425 -0.4333 2.5e-3 0.083425 1.632e-3 GW 44 5 -0.4333 -0.1725 0 -0.4333 -2.5e-3 0 1.632e-3 GW 45 5 -0.4333 0.1725 0 -0.4333 2.5e-3 0 1.632e-3 GW 46 5 -0.4333 -0.1725 -0.083425 -0.4333 -2.5e-3 -0.083425 1.632e-3 GW 47 5 -0.4333 0.1725 -0.083425 -0.4333 2.5e-3 -0.083425 1.632e-3 GW 48 5 -0.4333 -0.1725 -0.250275 -0.4333 -2.5e-3 -0.250275 1.632e-3 GW 49 5 -0.4333 0.1725 -0.250275 -0.4333 2.5e-3 -0.250275 1.632e-3 GW 50 5 -0.4333 -0.1725 -0.3337 -0.4333 -2.5e-3 -0.3337 1.632e-3 GW 51 5 -0.4333 0.1725 -0.3337 -0.4333 2.5e-3 -0.3337 1.632e-3 GW 52 3 -0.4333 0.1725 0.16685 -0.4333 0.1725 0.083425 1.632e-3 GW 53 3 -0.4333 0.1725 0.083425 -0.4333 0.1725 0 1.632e-3 GW 54 3 -0.4333 0.1725 -0.16685 -0.4333 0.1725 -0.083425 1.632e-3 GW 55 3 -0.4333 0.1725 -0.083425 -0.4333 0.1725 0 1.632e-3 GW 56 3 -0.4333 0.1725 -0.16685 -0.4333 0.1725 -0.250275 1.632e-3 GW 57 3 -0.4333 0.1725 -0.250275 -0.4333 0.1725 -0.3337 1.632e-3 GW 58 3 -0.4333 0.1725 0.16685 -0.4333 0.1725 0.250275 1.632e-3 GW 59 3 -0.4333 0.1725 0.250275 -0.4333 0.1725 0.3337 1.632e-3 GW 60 5 -0.4333 0.1725 -0.16685 -0.4333 0.3425 -0.16685 1.632e-3 GW 61 5 -0.4333 0.1725 -0.3337 -0.4333 0.3425 -0.3337 1.632e-3 GW 62 5 -0.4333 0.1725 -0.250275 -0.4333 0.3425 -0.250275 1.632e-3 GW 63 5 -0.4333 0.1725 -0.083425 -0.4333 0.3425 -0.083425 1.632e-3 GW 64 5 -0.4333 0.1725 0 -0.4333 0.3425 0 1.632e-3 GW 65 5 -0.4333 0.1725 0.083425 -0.4333 0.3425 0.083425 1.632e-3 GW 66 5 -0.4333 0.1725 0.16685 -0.4333 0.3425 0.16685 1.632e-3 GW 67 5 -0.4333 0.1725 0.250275 -0.4333 0.3425 0.250275 1.632e-3 GW 68 5 -0.4333 0.1725 0.3337 -0.4333 0.3425 0.3337 1.632e-3 GW 69 3 -0.4333 -0.1725 0.3337 -0.4333 -0.1725 0.417125 1.632e-3 GW 70 5 -0.4333 -0.1725 0.417125 -0.4333 -0.3425 0.417125 1.632e-3 GW 71 5 -0.4333 -0.1725 0.417125 -0.4333 -2.5e-3 0.417125 1.632e-3 GW 72 5 -0.4333 0.1725 0.417125 -0.4333 2.5e-3 0.417125 1.632e-3 GW 73 3 -0.4333 0.1725 0.3337 -0.4333 0.1725 0.417125 1.632e-3 GW 74 5 -0.4333 0.1725 0.417125 -0.4333 0.3425 0.417125 1.632e-3 GW 75 3 -0.4333 -0.1725 -0.3337 -0.4333 -0.1725 -0.417125 1.632e-3 GW 76 5 -0.4333 -0.1725 -0.417125 -0.4333 -0.3425 -0.417125 1.632e-3 GW 77 5 -0.4333 -0.1725 -0.417125 -0.4333 -2.5e-3 -0.417125 1.632e-3 GW 78 5 -0.4333 0.1725 -0.417125 -0.4333 2.5e-3 -0.417125 1.632e-3 GW 79 3 -0.4333 0.1725 -0.3337 -0.4333 0.1725 -0.417125 1.632e-3 GW 80 5 -0.4333 0.1725 -0.417125 -0.4333 0.3425 -0.417125 1.632e-3 GW 1 1 -0.3 -0.0125 0 -0.3 0.0125 0 1.4e-4 GE 0 EK EX 0 1 1 0 1 0 GN -1 FR 0 1 0 0 585 0 LD 5 0 0 0 5.8e7 0 RP 0 73 73 1001 -90. 90. 5.0 5.0 10000.0 Last edited by stampeder; 2010-03-04 at 01:26 PM.

2009-12-01, 01:20 AM	#718
snowman53 Join Date: Aug 2009 Posts: 52	I like this antenna's fat beam width! I modified your 2 Bay BiQuad "SPIDER" model X-723 and and improved the gain some what. Changed the reflector to 28" wide x 36" high (4"x2" grid) 3.5" behind the active elements. Code: [MHz] Tot-gain SWR Eff Gain 465 11.84 2.33 11.08 481 11.89 1.66 11.61 497 11.94 1.33 11.85 513 12.01 1.13 11.99 529 12.09 1.04 12.09 545 12.20 1.15 12.18 561 12.33 1.29 12.26 577 12.47 1.44 12.33 593 12.62 1.60 12.38 609 12.79 1.78 12.43 625 12.97 1.99 12.46 641 13.15 2.24 12.46 657 13.32 2.53 12.42 673 13.47 2.86 12.32 689 13.58 3.25 12.15 705 13.59 3.68 11.86 I replaced the original reflector line 17 to 80 with: SY Refl_Dist=-0.3889 ......... SM 7 18 Refl_Dist -0.3556 -0.4572 Refl_Dist 0.3556 -0.4572 SC 0 -1 Refl_Dist 0.3556 0.4572 Last edited by stampeder; 2009-12-01 at 04:26 AM. Reason: code tags added to make table align properly

2009-11-26, 08:22 AM	#706
Xauto Join Date: Sep 2008 Posts: 487	bokakob: Have you looked at adding NAROD to make it a combo. CM Experimental Antenna Design X-712 CE X707 with roof to help VHF-hi GW 1 3 0.4 -1 0 0.4 1 0 0.024 GW 2 14 0 -7.9 0 0 -0.2 7.17 0.041 GW 3 13 0 -0.2 7.17 0 -7.3 14.3 0.041 GW 4 13 0 -7.3 14.3 0 -0.2 21.5 0.041 GW 5 14 0 -7.9 0 0 -0.2 -7.17 0.041 GW 6 13 0 -0.2 -7.17 0 -7.3 -14.3 0.041 GW 7 13 0 -7.3 -14.3 0 -0.2 -21.5 0.041 GW 8 14 0 7.9 0 0 0.2 7.17 0.041 GW 9 13 0 0.2 7.17 0 7.3 14.3 0.041 GW 10 13 0 7.3 14.3 0 0.2 21.5 0.041 GW 11 14 0 7.9 0 0 0.2 -7.17 0.041 GW 12 13 0 0.2 -7.17 0 7.3 -14.3 0.041 GW 13 13 0 7.3 -14.3 0 0.2 -21.5 0.041 GW 14 13 0 -0.2 -7.17 0 -10.5 -7.17 0.041 GW 15 13 0 -0.2 7.17 0 -10.5 7.17 0.041 GW 16 13 0 0.2 -7.17 0 10.5 -7.17 0.041 GW 17 13 0 0.2 7.17 0 10.5 7.17 0.041 GW 18 9 0 -0.2 -7.17 0.4 -1 0 0.041 GW 19 9 0 -0.2 7.17 0.4 -1 0 0.041 GW 20 9 0 0.2 -7.17 0.4 1 0 0.041 GW 21 9 0 0.2 7.17 0.4 1 0 0.041 GW 22 19 0 -7.3 14.3 0 7.3 14.3 0.041 GW 23 19 0 -7.9 0 0 7.9 0 0.041 GW 24 19 0 -7.3 -14.3 0 7.3 -14.3 0.041 GW 30 21 0 0 22.5 0 10.6 11.9 0.041 GW 31 21 0 0 22.5 0 -10.6 11.9 0.041 GW 32 21 0 0 -22.5 0 10.6 -11.9 0.041 GW 33 21 0 0 -22.5 0 -10.6 -11.9 0.041 GS 0 0 0.0254 GE 0 EK LD 5 0 0 0 5.8e7 0 EX 0 1 2 0 1 0 GN -1 FR 0 1 0 0 584 0 XQ EN

2009-11-26, 09:24 AM	#707
bokakob Join Date: Aug 2009 Posts: 123	I do not think this addition helps.

2009-11-26, 10:05 AM	#708
Xauto Join Date: Sep 2008 Posts: 487	It helps ch.7 thur 13. and yet leaves ch.14 thur 51 about the same.

2009-11-27, 05:21 PM	#712
RamKat Join Date: Apr 2009 Location: Ottawa Posts: 463	Hey Bokabob - you are on a roll!. I know you are looking at an antenna that has a wide azimuth gain lobe but how about ganging two single dragons side by side with a mesh reflector- similar to the CS2 vs CS4. There are some folks here that are looking for a 20dbi plus antenna at a single band (or relatively narrow band) where they could steer the beam past nearby towers - so a side by side may provide just that Happy Thanksgiving to all the US folks

2009-11-28, 12:18 AM	#713
Vorg Join Date: Jul 2009 Posts: 71	Autox, problem with rods is right now I'm using it as an omni antenna. I'm watching for something that would have enough gain to use a combiner for 2-3 antennas. The dragon's in bi-directonal look interesting, but at 3m, a metal support mast running the height of it would be needed and I'm guessing that would impact the gain on the side of the mast. Also, at 3m I would be back to a single antenna array that then goes through splitters to several locations increasing the need for gain even more. The way I have it now, is that shorted loop goes to the room with vdr computer through a 2 way splitter. One out goes to a converter box and the other goes to a dual tuner which would have an internal splitter of its own.

2009-11-28, 06:37 AM	#714
Xauto Join Date: Sep 2008 Posts: 487	Vorg; I'm also using a SBL, and it works for me about 99% of the time. About once in every two months I will get drop outs on Ch. 14. So I've been looking for a small antenna with 5dBi Net gain across Ch. 14 thur 45. If the SBL is made into an ellipse and adding one 13" rod 12" off center it may give me what I need in a 14.5"X16" size, or I'll make a hentenna for Ch 14 with an A B switch.

2009-11-28, 07:39 AM	#715
RamKat Join Date: Apr 2009 Location: Ottawa Posts: 463	Hi Xauto, Thanks for that small antenna in 702. I just realized that I have not comment on it. I will probably also be a candidate for the same construction method that Bokabob used where everything is soldered together.

2009-11-28, 09:01 AM	#716
Xauto Join Date: Sep 2008 Posts: 487	RamKat: If you go off to make X702. You need not put the step in the outer whiskers, that was done to stop the warnings from the modeling.

2009-12-02, 10:30 PM	#719
bokakob Join Date: Aug 2009 Posts: 123	Thank you much but the honor is to the people who showed me how... I always ask if someone could improve any kind of antenna I could think of. It happened that you increased the gain by 1 dB across the spectrum -- nice! I am toying with a wire layout exactly the size of GH antenna (60cm x 80cm) and giving about twice sensitivity at the fringes, low channels to be correct. Maybe someone with more knowledge could improve that too. Thanks again -- regards...

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