[amsat-bb] Re: OT: Universal Text Messaging and Pagers (WAS Re: Re: dream)

[Gordon JC Pearce]

On Tue, 2009-07-07 at 09:55 -0400, Bob Bruninga wrote:

> Sorry, one can also claim that every transmission is one-way because
> only under full duplex conditions is a system truely two-way.   There
> are all kinds of applications in amateur radio where one side of the
> link uses different hardware than the other return side, and once can
> make all kinds of arguments as to how much delay is involved between
> the transmission and the receiption.. 3 seconds?  10 seconds, a
> minute?  10 minutes?  A day?  When you make a call to a party TO
> ESTABLISH commmunications it is one way, until the person gets his
> system going and responds.

A good example of this is the amateur satellites.  You might fire an
email off to someone - "I heard you but you couldn't hear me" after the
pass.  I think you'd have a hard time describing that as anything other
than a one-way radio communication, but I don't see where that would
become illegal.

Gordon 2M0YEQ