Newsgroups: comp.dcom.lans
Path: utzoo!henry
From: henry@zoo.toronto.edu (Henry Spencer)
Subject: Re: Lan over microwave, radio or infrared. Products available ?
Message-ID: <1990Oct28.031512.9104@zoo.toronto.edu>
Organization: U of Toronto Zoology
References: <1056@aut.UUCP>
Date: Sun, 28 Oct 90 03:15:12 GMT

In article <1056@aut.UUCP> dhuber@aut.UUCP (Daniel Huber) writes:
>Do I have any problems with the PTT to expect when I use this product ?
>(The land between the buildings is public, but the Swiss PTT is @#!*&%)

It is entirely possible that your PTT has a legal monopoly on communication
and you cannot install such a device without their approval (or worse, that
you can install only devices they have blessed).  Actually, having public
land in between makes things worse, not better, as there is often an
exemption for communication entirely within your own property.

Microwave and radio links will assuredly require government approval of
some kind, as the radio spectrum (including microwaves) is a scarce
resource, and using it without coordination can cause trouble for
previously-approved users.  Infrared is directional enough that it might
be possible to install that kind of system without anyone noticing, and
most regulatory authorities disclaim any interest in light anyway.
-- 
The type syntax for C is essentially   | Henry Spencer at U of Toronto Zoology
unparsable.             --Rob Pike     |  henry@zoo.toronto.edu   utzoo!henry