ATM (was Re: too many routes)

Tim Pozar pozar at
Mon Sep 15 14:31:06 UTC 1997

Susan R. Harris wrote:
> > Photons propagate at 0.65c in fibre - the exact speed does vary
> > depending on whether its single or multimode fibre.  
> Hi Geoff - not to reveal my ignorance or anything, but ... is that 65
> degrees celcius? 
> > The equivalent EMR propagation speed in coppr is 0.75c
> What is EMR?
Electro-Magnetic Radiation.

The velocity will vary +/- ~10% depending on the type of material for the 
dielectric and dimension of the transmission line.

  Snail: Tim Pozar / LNS / 1978 45th Ave / San Francisco CA 94116 / USA
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