Almost that simple IMHO. Given the hypothetical device can drive the
impedances at all frequencies equally, the radiated patterns will have the
characteristics of the antenna at those frequencies, so the frequency where
it is 1/2 wave dipole will have a typical dipole pattern and other
frequencies in the spectrum will have lesser or greater gain depending on
what that dipole looks like at those freqs, like an EDZ fir example.
73, Dan
On Fri, Feb 12, 2021, 8:10 AM Christopher Wawak <kc2ieb@wawak.org> wrote:
> I put my vote on the resonance causing the RFI to be stronger at that
> frequency. Are you thinking other reflections/etc might cancel out the
> spike at the resonant frequency?
>
> On Fri, Feb 12, 2021 at 2:02 AM Tony <73guddx@gmail.com> wrote:
>
> > All:
> >
> > The question below came up in a recent conversation:
> >
> > If a device that generates RFI at a consistent level across the HF
> > spectrum were connected to a wire that was 1/2 wavelength at a given HF
> > frequency, would the level of RFI be noticeably stronger at that
> frequency?
> >
> > The consensus was that it *should* be because the device is generating
> > RF like any other RF transmitter and the wire being 1/2 wave would act
> > as a dipole at the resonant frequency.
> >
> > Sounds plausible, but I have a feeling it's not as simple as that.
> >
> > Tony
> >
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