[Antennas] Re: vertical angles...
Roy Koeppe
royanjoy at ncn.net
Fri Sep 8 12:53:42 EDT 2006
Danny,
What length (height) for the vertical antenna element did you use for
those calculations? 12 feet? Doesn't seem right.
73, Roy K6XK
At 08:12 AM 9/8/2006, you wrote:
>Doing a quick and dirty model in NEC gives the following:
>
>160m - 25º
>80m - 25º
>60m - 24º
>40m - 21º
>30m - 19º
>20m - 16º
>17m* - 14º & 52º
>15m* - 47º & 13º
>12m* - 41º & 12º
>10m * - 36º & 12º
>
>Ground loss erosion out past the ends of the short radials on the
lowest
>bands listed will eat at those 'twenty-some' degree numbers. They will
>effectively end up being more like 30-degrees--a good round average
>number to use.
>
>73, Roy K6XK
Fine, you model the antenna at the specifications he gave.
Danny
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