On Fri, 27 May 2005 10:05:04 +0100, "Ivor Jones"
<(E-Mail Removed)> wrote:
>Actually, there isn't really any such thing as "half" duplex - it's either
>duplex or it isn't..!
http://www.webopedia.com/TERM/h/half_duplex.html
>When I have a conversation on amateur radio using PTT, it is universally
>regarded throughout the AR world as a *simplex* conversation because it is
>indeed in one direction only.
it is in one direction *at any one time* which is not the same as one
direction.
Google for define:simplex would suggest my FM radio is simplex, as is
the transmitter serving it (albeit in a different direction) because
both can only do one thing - either send or receive.
http://www.webopedia.com/TERM/s/simplex.html would suggest that the AR
example is in fact half duplex, even if they choose to call it
simplex.
Phil
--
Tiscali - dialup speeds at Broadband prices, see
http://bbs.adslguide.org.uk/postlist...&Board=tiscali
AOL - the unlimited ISP of choice for heavy downloaders.