BBC Research centre 60th birthday present: world's first reception of HD pictures over DTT using DVB-T2
On the 60th birthday of BBC
Kingswood Warren, engineers from BBC Research & Innovation succeeded in demonstrating a working real-time demodulator
capable of receiving signals compliant to the DVB-T2 standard for
the very first time.
Following the approval of the standard by the DVB on 26 June and
then the successful test transmissions from Guildford on 27 June, the achievement – on Friday 29 August – is another significant milestone in the
delivery of HD over Freeview.
This is the first time anywhere in
the world that a live end-to-end DVB-T2 chain has been
Justin Mitchell, leader of the DVB-T2 modem development team at
the BBC, said: "Following the approval of DVB-T2 in June and the
launch of test transmissions from Guildford transmitter the next
day, we are delighted that on Kingswood Warren's 60th
anniversary our team has been able to deliver a working
demonstration of a DVB-T2 modulator and demodulator."
There will be a demonstration of the DVB-T2 modulator and
demodulator on the DVB stand 1.D81 at IBC in Amsterdam in
This will be accompanied by hourly talks and
The modulator and demodulator are available for licensing.
Notes to Editors
The demonstration consists of:
A 36 Mbit/sec multiplex containing three high definition
programmes each coded at 11 Mbit/sec with the latest MPEG-4
This is fed into the prototype DVB-T2 modulator which
was developed by R&I, and is currently providing the test
transmissions from Guildford transmitter
This signal is then received by the prototype DVB-T2
demodulator which was developed by R&I which demodulates the DVB-T2 signal and converts it to an MPEG transport stream
The transport stream is then fed to an MPEG-4 decoder
which displays the video on a high definition display.
The demonstration shows several of the new features contained
within the new DVB-T2 specification. These include:
1/128 guard interval
LDPC error correction (64800 size blocks) and BCH error
Rotated 256-QAM constellations
The operating mode of the demonstration is: 32K 1/128 256-QAM 3/5