Re: FCC Orders All TV's To Have Digital Tuners By 2007

[dan.strassberg@att.net]

Yes, a correct term is AM _band_ IBOC DAB. As you point 
out, the modulation is not AM. If you are going to be a 
stickler, though, you can't use IBOC as the noun because 
it's an adjective. But AM band IBOC DAB is a mouthful and
you can't stop people from shortening it to AM IBOC. MW 
IBOC DAB is also correct but the problem with it is that 
when you say MW in the US, 99% of the people haven't a 
clue about what you mean.

The whole argument is academic, however, until the 
iBiquity AM-band system is given a proper and decent 
burial and we can check every week to make sure 
that "yep, it's still dead." The iBiquity systems are 
the only IBOC DAB systems under consideration in the US. 
The AM-band system is theoretically unsound and doesn't 
work because the proponents insist that they have 40 kHz
of bandwidth to play in--which is untrue. Even the NRSC 
says the AM-band system won't work at night because of 
first-adjacent skywave interference. I have news for the 
NRSC; the system won't work during the day either. No
amount of wishful thinking or propaganda can change 
that. Maybe if 80% or more of the AM stations in the US 
went dark, there would be adequate bandwidth to 
accommodate the signals, but there would still be 
reception problems. Perhaps there is another digital 
system that _could_ work. The French Digial Radio 
Mondiale might be such a system. However, you have to
suspect a system whose proponents call it an open system 
and then fail to reveal even the most basic information 
about how it works because the proponents need to 
protect their intellectual property(!) This is an
argument worthy of Bill Gates.

--
Dan Strassberg, dan.strassberg@att.net
617-558-4205, eFax 707-215-6367

----- Original Message -----
From: A. Joseph Ross <lawyer@attorneyross.com>
To: <boston-radio-interest@khavrinen.lcs.mit.edu>; Aaron 
[Bishop] Read
<aread@speakeasy.net>
Sent: Saturday, August 10, 2002 2:09 AM
Subject: Re: FCC Orders All TV's To Have Digital Tuners 
By 2007


> Though the term "AM IBOC" is a bit of an oxymoron.  It 
will be in the AM
> broadcast band, but it will be a digital signal, not 
an AM signal.


--
dan.strassberg@att.net
617-558-4205
eFax 707-215-6367