Hello Jim,
Thanks for the explanation... I will go unterminate one and see what
happens... I would expect some radiation from it, but you are probably
correct, not enough wire to radiate it...
On Thu, 2013-03-28 at 10:57 -0700, Jim Brown wrote:
> On 3/28/2013 10:44 AM, David C. Cole wrote:
> > I would expect that a mismatch on one port, (i.e. no termination), would
> > cause RF on that port, as things would become unbalance inside the
> > splitter thus removing the prefect isolation between ports that should
> > exist with matched impedances.
>
> No, because there's nothing connected to it to radiate. Think about it
> -- WIRES radiate when they carry RF current. No wire, no current, no
> radiation. Likewise, coax radiates ONLY when it carries common mode
> current (outside the coax), not differential current (inside the coax),
> or when the shield is degraded, open, or of poor quality.
>
> The only effects of an unterminated port are a slightly higher (a dB or
> two, depending on the number of ports) and some reflections on the other
> ports, the strength of which would also depend on the number of ports. .
>
> 73, Jim K9YC
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