On Monday 09 October 2006 15:25, Jim Poer Inscribed Thus:
> The signal will not degrade or enhance by
> splitting. I have an answering machine and a handset extension and
> the DSL line all running through that little splitter(the handset and
> the answering machine on filters). Now if it were a coax cable, I
> could see the degradation of signal. Works for me, just my 2
FWIW The difference between a splitter and a filter.
A splitter generally is a resistive device that halves the signal
between two ports of equal impedance ! Each time you add a load you
reduce the signal level ! It usually is not a frequency conscious
device !
A filter separates signals by providing a split in the frequency domain
between "Voice frequencies and broadband frequencies" There will
always be some attenuation of the signal across the whole range of
frequencies. The idea being to prevent the highest frequencies from
interfering with the voice signals.
Therefore a filter will offer high attenuation to the higher frequencies
on the voice output port, and low attenuation to the higher frequencies
on the broadband port.
As far a coax is concerned, the telephone line is just as much a
transmission line as coax cable is ! It obeys exactly the same laws !!
--
Best Regards:
Derrick.
Pontefract Linux Users Group.
plug at play-net.co.uk
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