I was also trying to understand the 300 foot top hat. I have never seen that
even on top band. It would be easy to model to see where it's resonant.
John KK9A
Stan Stockton K5GO wrote:
350 feet is about 5 quarter wavelengths at 3.8 MHz. Quarter wavelength is
about 65 feet or so. If that thing is really 350 feet long you should see
resonance at about 700 kHz, in addition to every odd multiple of a quarter
wavelength. Was there a typo or is this really an inverted L that is 350 feet
long?
Stan, K5GO
Sent from my iPhone
> On Dec 19, 2022, at 2:57 AM, w5jmw at towerfarm.net wrote:
>
> Hello all.I have a t antenna.50ft vertical and roughly 300 ft ntip to tip
> horizontal.I get a nice drop and resonance at abt 3.8 mhz.Is this weird
> resonant point normal??I would think it would be lower.I have another at abt
> 2.2 but almost a 3-1 swr..Normal ? I have used an inverted l before and
> resonant was abt right with a 1/4 wave length..thanks..john
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