[opendtv] Future of digital TV 'could depend on ITU decisions'
- From: "Manfredi, Albert E" <albert.e.manfredi@xxxxxxxxxx>
- To: <opendtv@xxxxxxxxxxxxx>
- Date: Mon, 29 Oct 2007 12:13:12 -0400
Looks like other broadcasters are also worried about talk of using
"white spaces," eh?
"An EBU press statement claims that interference problems can easily
arise when a number of services are deployed in the same frequency
bands, with interference to analogue TV services typically appearing as
obtrusive patterns on the picture and interference to digital TV
services having much more radical effects."
Bert
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http://www.dtg.org.uk/news/news.php?id=2795
Future of digital TV 'could depend on ITU decisions'
The future of digital TV could be adversely affected by decisions taken
at the ITU World Radiocommunication Conference which runs 22nd
October-16th November in Geneva, according to the European Broadcasting
Union (EBU).
One of the items on the conference's agenda concerns the identification
of frequency bands for international mobile telecommunications (IMT)
services, such as third generation UMTS mobile phones. The bands under
consideration include UHF Bands IV & V (470-862 MHz) in ITU Region
1-Europe, Africa and parts of the Middle East-which are currently used
for TV broadcasting.
"In many European countries, digital terrestrial TV in these bands has
already become a major success based on the availability of free-to-air
TV services" said Lieven Vermaele, EBU Technical Director. "However,
this success story could be jeopardised by the introduction of mobile
phone services in broadcasting frequency bands."
An EBU press statement claims that interference problems can easily
arise when a number of services are deployed in the same frequency
bands, with interference to analogue TV services typically appearing as
obtrusive patterns on the picture and interference to digital TV
services having much more radical effects.
A recent study of the European Conference of Postal and
Telecommunications Administrations (CEPT), which represents 48 EU
countries, highlighted the problem of potential interference between
mobile phones and TV services. CEPT suggests that further technical
studies are necessary in this area and as a result the EBU claim
allocations to the mobile service in relevant parts of the band 470-862
MHz should be considered only at the next World Radiocommunication
Conference in 2011.
DTG Staff 29.10.2007
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