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*      RADIO-L :  a discussion of Digital Audio Broadcasting (DAB)    *
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Date: 13 October 1998
From: walter.tuttlebee@ROKE.CO.UK
Subject: RE: DAB versus DVB-T

In reply to Stefan's questions...

# What can be done to encourage people to continue with DAB, even when
it is not subsidized by the government anymore?

Lower cost radios is what's needed - the �500 UK high street offerings
now are similar to the subsibised prices in some of the German trials,
and they'll fall with volume over the coming year. Indeed
manufacturers can offer lower price products than this today in volume
(using the goldCARD OEM module).

# Is DVB-T really a competitor for Digital Radio or is it just an
excuse to drop DAB?

No, and Maybe !

There's been a lot of discussion between the DAB and DVB guys on this
and both parties agree that they are not and should not become
competitors.

EACEM (the European manufacturers' industry association) have clearly
stated this. Roke Manor Research are involved in developing technology
for both and certainly this is our view.

The debate at the recent International Broadcasting Convention, IBC,
in September in Amsterdam came to the same conclusion. One important
reason for the current focus on DVB-T is that TV is a higher value
market - indeed, this was the result of a blind vote (on reasons for
the current emphasis on DVB-T) in a specialist DAB session held at
IBC.

(There were some other interesting conclusions and votes from this
session. I saw a recent Radio-L posting from Michael McEwen who
chaired this session - maybe he could add some more details for the
benefit of Radio-L listeners ?)

# Are there any documents comparing DAB and DVB-T, especially in
terms of delivering digital audio to mobile receivers?

Not that I know of explicitly, because they are not seen as
competitors, but complementary... ...but I may be wrong, anyone know
any better ? (Of course, the technology is very similar, both being
COFDM based).

Best regards,
Walter
================================
Dr Walter HW Tuttlebee
Business Development Manager
Roke Manor Research
Romsey, Hampshire, SO51 0ZN, UK

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