I'd be interested to know how you make the joints, then add joints to joints,
then...doesn't it get a bit lumpy? Do you solder or crimp or nuts and bolts,
joints in three at a time...?
David G3UNA
> On 12/11/2022 16:41 Grant Saviers <grants2@pacbell.net> wrote:
>
>
> The 34 ohms is the sum of Rr (antenna radiation Z over perfect ground)
> and Rg (ground R loss). Rr depends on the dimensions of the L plus a
> bit of wire loss. My guess is Rr is about 10 ohms less than 34 ohms,
> some easy modeling will determine it.
>
> Then it is a question of what antenna efficiency you want vs cost and
> time for more radials. If 10 ohms is Rg, then about 1/3 of the TX power
> is warming the worms.
>
> Grant KZ1W
>
> On 11/12/2022 07:31, ws6x.ars@gmail.com wrote:
> > In my experience here in "ROCK"ingham County, I didn't reach the point of
> > diminishing returns until around 32 radials of varying lengths (Most were
> > either 50 or 100' long.). Much would depend on length, configuration,
> > terrain and ground conductivity.
> > Jim - WS6X
> >
> > -----Original Message-----
> > From: Topband <topband-bounces+ws6x.ars=gmail.com@contesting.com> On Behalf
> > Of Pete Smith N4ZR
> > Sent: Monday, November 7, 2022 4:27 PM
> > To: topband reflector <Topband@contesting.com>
> > Subject: Topband: How good is good enough
> >
> > Now that the lawn mowing is done for the season, I resuscitated my 160M
> > inverted L. With 13 on the ground radials, each roughly 70 feet long,
> > measured R of 34 ohms seems OK to me. Is it worth laying down more
> > radials, or am I approaching diminishing returns?
> > --
> > 73, Pete N4ZR
> >
> >
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