🚀 go-pugleaf

In article <Jul.19.14.48.15.1989.439@athos.rutgers.edu>, gutherz@athos.rutgers.edu (Matt Gutherz) writes:
> 
> A while back (months) there was a discussion about improving
> radio reception in basements etc.  Someone posted a solution
> using 2 antenna and some coax.  Does anyone have the posting
> or know the specs for the antenna?  Thanks in advance.
> 
> 
> Matt gutherz@jove.rutgers.edu



Radio propagation inside buildings.

The system you mention is probably the 'leeky feeder'. This can
be used in tunnels, where you place an antenna outside to pick-
up the radio signal, an retransmit it on the coax cable. If the
cable has some slots, you will experience an electromagnetic
field, radiating from the cable. The problem is to get a field
with no severe power fades. Such systems are already imple-
mentet in Europe, retransmitting FM radio broadcast.

I have an extra question: Does anyone have any experience
in radio propagation inside buildings at 2 GHz as a function
of building materials? (Bricks, concrete, reinforced concrete,
wood, glas etc). I would be glad to hear about any practical
experiments or theoretically modelling.

Bo L. Andersen
Aalborg University
Denmark