I think some of the comments regarding 11 meter ops is that there are even
(supposedly) 10K capable antennas in a 5 watt service. The illegality issue
that seem to alway come up with 11 meters, both in band and the so-called
freebanders, and the rampant desire of many in that service to operate
illegally. The same issue that we've had for a very long time and that cause
amateur radio operators problems with misinterpreted interference (when it
is not us) and the issues that occur on 10 meters with the illegal ops on
the lower end of it and between 10 and 11 meters.
Mike, k5wmg
Pipe Creek, Texas
Fast cars, slow boats, big dogs, old trucks, little radios, and summers off
to write
On Wed, Jun 23, 2010 at 5:01 AM, Jim Thomson <jim.thom@telus.net> wrote:
> Date: Tue, 22 Jun 2010 12:54:46 -0700
> From: "Dino Darling" <dino@kx6d.com>
> Subject: Re: [TowerTalk] Have we been wasting our money?
>
>
> Roger, stop stirring the pot! That CB antenna works perfect for what it
> was designed for. The design was stolen from a guy named Kale who
> builds the "Penetrator 10K" antenna. I know you are not so naive to
> think that there isn't a huge outlaw CB market.
>
> ## anybody notice that the center loading coils in a cushcraft 402CD
> [and probably the new version XM-240] have puny coils , wound with really
> small
> ga magnet wire ?? Those coils have aprx 8.5 ohms RF resistance each !
> The Un loaded Q of those coils is a joke.
>
> ## feed point Z = rad resistance + series losses. 32 + 8.5 + 8.5 = 49
> ohms.
> Sure, you end up with a low swr.. and that's about it. The ant is very
> effective
> however. They shoulda used way bigger coils.. and also big capacity hats
> [f-12 calls em
> T-bars] .. then you end up with a more eff ant. IMO, capacity hats are
> the closest thing to
> a free lunch you can get. F-12 opted for center loading on their sigma
> series loaded yagi's
> on 80 + 40m.... and used 3/8" OD AL tubing...[ and big T bars] Big
> diff between puny small ga
> magnet wire [close wound to make the UN loaded Q even worse].. and 3/8"
> tubing coils.
>
> ## and folks are bashing 11m ops for using 3/4" wide bar stock for a
> coil.. and corrona balls ?
>
> later... Jim VE7RF
>
>
>
>
> Dino - KX6D
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