Path: utzoo!attcan!uunet!lll-winken!lll-tis!helios.ee.lbl.gov!pasteur!ames!mailrus!tut.cis.ohio-state.edu!bloom-beacon!apple!rutgers!bellcore!clyde!watmath!looking!brad
From: brad@looking.UUCP (Brad Templeton)
Newsgroups: comp.dcom.modems
Subject: Re: Break definition (Some Answers from the Standards, LONG)
Message-ID: <2035@looking.UUCP>
Date: 14 Sep 88 17:41:43 GMT
References: <39157@pyramid.pyramid.com> <39163@pyramid.pyramid.com>
Reply-To: brad@looking.UUCP (Brad Templeton)
Organization: Looking Glass Software Ltd.
Lines: 14

But if DAMQAM is really a broadband scheme with 511 carriers using up
the entire band, why do all 511 of the carriers have to be in the
same direction?  In interactive mode at least, I wish they always had
at least one carrier in each direction, so that no turnaround would be
required.

In fact, even if having a reverse direction carrier meant you couldn't
use several of the nearby bands in the forward direction, it would still
be worth it in interactive mode.  Ideally it would be nice to see 2
permanent carriers in each direction, and 507 switchable carriers.
(You may need more than 2 to achieve the information rate required with
error correction, but you get the gist. 100 bps would be adequate for
typing and ACK/NAKs of other protocols.)
-- 
Brad Templeton, Looking Glass Software Ltd.  --  Waterloo, Ontario 519/884-7473