Re: Fwd: Re: LF: VK1OD's analysis of the MiniWhip antenna

[pat <g4gvw@aol.com>]

I don't know if my previous posts arrived but I still prefer to think that a "small" antenna is one plate of a capacitor and the rest of the universe is the other. This then enables the spacecraft antenna to work. The universe is not a great big empty space!

73 de Pat



On 10/07/13 08:58, edgar wrote:

I sent this message two days ago and I did not see it arrive.

Although the subject is now out of context, I would like some comment on my question.

Regards, Edgar
Moonah, Tasmania.


-------- Original Message --------

Subject:	Re: LF: VK1OD's analysis of the MiniWhip antenna
Date:	Mon, 08 Jul 2013 00:06:50 +1000
From:	edgar <edgarjtwining@virginbroadband.com.au>
To:	rsgb_lf_group@blacksheep.org

Hi Pieter-Tjerk,

If that is the case, and all the parts are at the same potential, how 
does a space craft, radio controlled model aeroplane

get their signals?

Surely every conductor in the unit will have a difference in potential 
due to being in a electromagnetic field.

Even in the legs of the FET. Although the potential will be extremely small.

Surely it is only necessary to have a change of the Vgs voltage of the FET.

So the geometry of the antenna has to be made to allow this to occur.

Regards, Edgar
Moonah, Tasmania.

-- 
73 de pat g4gvw
es gd dx
qth nr Felixstowe
East Coast UK