Re: terrys scope antenna

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Paul Benham" <paulb@xxxxxxxxxxxxxxxxxxxx>

Hi Terry,

If you connect 50R to the scope end you will not get a flat frequency
response, even though you are then terminating the cable correctly.  It
needs the high impedance of the scope to work correctly.

Cheers,

Paul.

----- Original Message -----
From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Wednesday, February 09, 2005 9:44 PM
Subject: Re: terrys scope antenna


> Original poster: Terry Fritz <teslalist@xxxxxxxxxxxxxxxxxxxxxxx>
>
> Hi Again,
>
> I took some pictures and details of the one I use now.  It just has the
> voltage side and needs no etching.  If you have the parts you can make it
> in a 1/2 hour.  Since the front is solid copper instead of "fingers", the
> frequency will not go way up to 100MHz, but who cares ;-)
>
> http://hot-streamer.com/temp/NewerSimplePlaneWave.pdf
>
> Use tiny but leaded parts.  Surface mount parts just bust up too
> easy.  This new one is super easy to make and very hard to break.  I use
it
> all the time.  It likes 50 ohm coax back to the scope which should be
> terminated at 50 ohms too, but I usually don't worry about that.
>
> Cheers,
>
>          Terry
>
> ---------------------------
>
> Hi Colin,
>
> They are here:
>
> http://hot-streamer.com/TeslaCoils/MyPapers/planant/waveant3.html
>
> I continue to like the plane wave antenna's very much!!  These days I just
> use a simple but tougher version.  I can post a few pics later.
>
> Cheers,
>
>          Terry
>
> At 11:13 AM 2/9/2005, you wrote:
> >hi terry and all,
> >                     i remeber reading a couple of years ago about a
scope
> > antenna terry built so he could watch it on a scope at a distance(planar
> > perhaps?) anyone know eher the plans went as i cant find them now?
> >many thanks
> >colin heath
>
>
>
>
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