04.07.2009 11:30 AM
Originally featured on BroadcastEngineering.com
TeamCast Power4-T2 DVB-T2 modulator ready for SFN networks

TeamCast claims to have pulled off a demonstration of true single-frequency network (SFN) operating modes for DVB-T2 transmission. Even though SFN operating in DVB-T2 is still under definition (T2-MI Interface) and no T2 Gateways are yet available, at CCBN 2009, TeamCast successfully demonstrated a DVB-T2 SFN transmission with two Power4-T2 modulators fed from a customized MIP Inserter in its labs. The Power4-T2's first software release was successfully tested during the DVB-T2 PlugFest at RAI-TURINO in early March 2009. All the DVB-T2 modes (System A and SISO) in 5MHz, 6MHz, 7MHz and 8MHz qualified.

One of the referenced UK DVB-T2 modes was used for this test, called VV001-CR35. It consists of a 256QAM OFDM signal with a 28ms guard interval that brings about 36Mb/s of useful data rate. TeamCast took special care that its modulator design would ensure robust SFN processing against any loss of reference signals — 10MHz, 1PPS, MIP and others.

The Power4-T2 DVB-T2 modulator consists of is a future-proof platform that is ready to implement future releases of the DVB-T2 standard on the fly. Its features include:

  • multiple network interfaces — DVB-S/S2, electrical and optical IP, ASI
  • readiness to implement multi-PLPs and to operate in SFN
  • high MER, low shoulder and low phase noise
  • precorrection linear and nonlinear circuits to improve driving DVB-T2 high-power transmitters

Post New Comment
If you are already a member, or would like to receive email alerts as new comments are
made, please login or register.

Enter the code shown above:

(Note: If you cannot read the numbers in the above
image, reload the page to generate a new one.)

No Comments Found

Thursday 11:07 AM
The Best Deconstruction of a 4K Shoot You'll Ever Read
With higher resolutions and larger HD screens, wide shots using very wide lenses can be a problem because they allow viewers to see that infinity doesn’t quite resolve into perfect sharpness.

David Goggin /   Wednesday 03:01 PM
Sommer Introduces New Hybrid Cable at InfoComm
Clyne Media, Inc /   Wednesday 10:41 AM
Guitar Center and DirecTV Present Muse Live from The Mayan

Featured Articles
Exhibitions & Events
Discover TV Technology