[Amps] MOSFET amp filtering - was: auto-tune / PEC ground

[Leigh Turner]

Yes indeed Jim. This can be seen in NEC modelling when perfect ground is
chosen or a metal sheet groundplane is deployed...

Leigh
VK5KLT

-----Original Message-----
From: Amps [mailto:amps-bounces at contesting.com] On Behalf Of Jim Brown
Sent: Tuesday, 13 December 2016 5:58 PM
To: Amps Amps
Subject: Re: [Amps] MOSFET amp filtering - was: auto-tune

Yes, but that's not the point.  What better ground does is 1) burn less 
power in the earth and 2) strengthen the first reflection in the far 
field. It isn't that there's less field at high angles, but rather that 
there's more field at low angles.

73, Jim

On Mon,12/12/2016 10:23 PM, Tom Thompson wrote:

> Jim,
>
> I looked at your presentation and "take off angle" is not mentioned, 
> but angle is.  Granted the gain of a ground mounted vertical with 
> radials has more gain as the ground becomes better, but I see the 
> angle of maximum gain getting lower, also.
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