[TowerTalk] High power 2:1 transformer was Re: 16om vertical and the number of radials
Pete Smith N4ZR
pete.n4zr at gmail.com
Fri Dec 2 15:38:36 EST 2022
A somewhat related question - as the R component at the feedpoint of my
inverted L goes down toward 25 ohms, I've begun wondering if I should do
some matching at the feedpoint, rather than using my tuner in the shack,
even though feedline losses at 160 are relatively low. Can someone
point me toward a good way to do a 2:1 downward transformation? I
already have a common mode choke at the feedpoint.
73, Pete N4ZR
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On 12/2/2022 2:32 PM, Richard (Rick) Karlquist wrote:
>
>
> On 12/2/2022 6:25 AM, Ignacy Misztal wrote:
>>
>> On the other hand, some really loud stations n 160m, say 5-10 db
>> above the
>> crowd, use a massive amount of radials. This is for inland stations, far
>> away from salt water.
>
> I think this describes my station. I do have a massive amount of
> radials, and I am constantly told how strong my signal is.
> As to cause and effect: I think not. The real secret sauce at
> N6RK is the high conductivity ground, although the radials obviously
> don't hurt. I am on the Sacramento river delta. We have 100% clay
> going down 40 feet.
>
> Rick N6RK
>
>
>> Is there any discrepancy between modeling and real life performance with
>> the number of radials? Does adding radials beyond 32 help much? Any real
>> stories?
>
> The precise number of radials that is optimum depends on ground
> conductivity. N6LF's excellent work only strictly applies to HIS
> ground. As for my ground, I suspect I could get away with only
> 8 or 16 radials. YMMV.
>
>> Ignacy NO9E
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