--- Enrico Schuerrer <enrico@gmx.at> wrote:

> "Paul James E." <jamesp@intertex.net> wrote:

> > 
> >  Enrico,
> > 
> >  Why don't you build a small transmitter operating
> at say 200Khz or so and
> >  capacitively couple the modulated signal to the
> rails.   You can then pick
> >  it off from anywhere on the rails.   You're
> already transmitting power
> >  through the rails.  You could have your modulated
> signal riding on the
> >  rails too.  No pun intended.
> > 
> >                                             
> Regards,
> > 
> >                                                Jim
> > 
> Hi Jim,
> 
> thanks for the idea. I think the problem for this
> solution is the construction. We have different
> modules and different supply areas, the rails are
> often isolated between the modules, depending on the
> supply area. The modules will be arranged in
> different configurations depending were we build up
> an exhibition and which area is available.
> 
> Regards
> 
> Enrico
> 

But this is the ADVANTAGE of this solution
Imagine running multiple trains on the track
rail voltage on a section would give rpm's (speed)
on this section. this way different trains could be
running in different sections each with their own
feedback

furthermore if you did want more than one segment
coupled all you would need is a capacitor between
these sections (the supply for the sections would
go thru a coil and you take the hf off at the rail
side with a capacitor)

Peter van Hoof
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