In-depth analysis
Synchronization in DVB-T2 and DAB SFN Networks: The Critical Role of GPS and Time Reference Technologies
Single Frequency Network (SFN) technology is fundamental to digital terrestrial broadcasting (DVB-T2) and digital radio (DAB), enabling multiple transmitters to operate on the same frequency without generating interference. The success of this architecture critically depends on the ability to maintain extremely precise time and frequency synchronization across all transmission sites. This article examines in detail the role of GPS/GNSS as the primary reference, the limitations of alternative technologies such as NTP, the capabilities of the PTP protocol (IEEE 1588v2), and the importance of holdover mechanisms in ensuring system resilience.
Thermoluminescence
When a radiation is incident on a material, some of its energy may be absorbed and re-emitted as light of longer wavelength.
Standard of time definition
A lot of the current technology to work properly requires a very precise definition of the time.
