If antennas are tightly mutually coupled and self impedances different, a
line lenght would never transform them
in pure current sources.
My point is that the quarter wave lines apply well to 75 Ohm cable where
eventually they transform a 50 Ohm to approximately 100 Ohm in the way that
paralleled the cables at the end the impedance is again close to 50 Ohm and
no transformer is involved in the game of phasing and matching.
When phase and match is performed by a broadband (multiband) device it's a
nonsense to introduce a device fixing (real or theorical) frequency
limitations.
73,
Mauri I4JMY (one of IG9A MM, see you in next WW ssb)
-----Messaggio Originale-----
Da: Pete Smith <n4zr@contesting.com>
A: <towertalk@contesting.com>
Data invio: domenica 17 ottobre 1999 20.14
Oggetto: [TowerTalk] feeding stacks - summary
>
>
> The general consensus seems to be that attempting to use odd-1/4 wave
> multiples to feed a tribander stack would be impractical (no argument
there)
> and would add very little if anything.
>
> One person did firmly support the premise that it was best, with
> monobanders, to follow this practice, but thought that the advantage was
> not large. Another reported that his 15M stacks seemed to work
> significantly better with half-wave multiple feedlines than with 5/4 WL.
>
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